java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 02:10:01,003 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 02:10:01,005 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 02:10:01,024 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 02:10:01,024 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 02:10:01,026 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 02:10:01,027 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 02:10:01,029 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 02:10:01,033 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 02:10:01,034 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 02:10:01,036 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 02:10:01,037 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 02:10:01,039 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 02:10:01,041 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 02:10:01,050 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 02:10:01,051 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 02:10:01,052 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 02:10:01,055 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 02:10:01,057 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 02:10:01,061 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 02:10:01,062 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 02:10:01,064 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 02:10:01,070 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 02:10:01,071 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 02:10:01,071 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 02:10:01,072 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 02:10:01,073 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 02:10:01,073 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 02:10:01,076 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 02:10:01,079 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 02:10:01,079 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 02:10:01,080 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-25 02:10:01,084 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 02:10:01,110 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 02:10:01,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 02:10:01,111 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 02:10:01,111 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 02:10:01,111 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 02:10:01,113 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 02:10:01,113 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 02:10:01,113 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 02:10:01,113 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 02:10:01,113 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 02:10:01,114 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 02:10:01,114 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 02:10:01,114 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 02:10:01,114 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 02:10:01,115 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 02:10:01,116 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 02:10:01,118 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 02:10:01,118 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 02:10:01,118 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 02:10:01,118 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 02:10:01,118 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 02:10:01,119 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 02:10:01,119 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 02:10:01,119 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 02:10:01,119 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 02:10:01,119 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 02:10:01,120 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 02:10:01,120 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 02:10:01,120 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 02:10:01,120 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 02:10:01,120 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 02:10:01,120 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 02:10:01,121 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 02:10:01,121 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 02:10:01,121 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 02:10:01,122 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 02:10:01,191 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 02:10:01,211 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 02:10:01,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 02:10:01,217 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 02:10:01,218 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 02:10:01,218 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label16_true-unreach-call.c [2018-10-25 02:10:01,295 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3b386b028/c9c9e9d0063f4cee8a61d4ddd2666759/FLAG747608c55 [2018-10-25 02:10:02,210 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 02:10:02,212 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label16_true-unreach-call.c [2018-10-25 02:10:02,260 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3b386b028/c9c9e9d0063f4cee8a61d4ddd2666759/FLAG747608c55 [2018-10-25 02:10:02,277 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3b386b028/c9c9e9d0063f4cee8a61d4ddd2666759 [2018-10-25 02:10:02,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 02:10:02,290 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 02:10:02,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 02:10:02,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 02:10:02,295 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 02:10:02,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:10:02" (1/1) ... [2018-10-25 02:10:02,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22442cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:02, skipping insertion in model container [2018-10-25 02:10:02,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:10:02" (1/1) ... [2018-10-25 02:10:02,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 02:10:02,563 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 02:10:04,502 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:10:04,507 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 02:10:05,555 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:10:05,604 INFO L193 MainTranslator]: Completed translation [2018-10-25 02:10:05,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05 WrapperNode [2018-10-25 02:10:05,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 02:10:05,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 02:10:05,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 02:10:05,606 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 02:10:05,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (1/1) ... [2018-10-25 02:10:05,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (1/1) ... [2018-10-25 02:10:06,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 02:10:06,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 02:10:06,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 02:10:06,315 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 02:10:06,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (1/1) ... [2018-10-25 02:10:06,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (1/1) ... [2018-10-25 02:10:06,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (1/1) ... [2018-10-25 02:10:06,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (1/1) ... [2018-10-25 02:10:06,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (1/1) ... [2018-10-25 02:10:06,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (1/1) ... [2018-10-25 02:10:06,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (1/1) ... [2018-10-25 02:10:06,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 02:10:06,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 02:10:06,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 02:10:06,750 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 02:10:06,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-25 02:10:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 02:10:06,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 02:10:06,819 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-25 02:10:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-25 02:10:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-25 02:10:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-25 02:10:06,820 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 02:10:06,820 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 02:10:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 02:10:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 02:10:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 02:10:06,821 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 02:10:06,821 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 02:10:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 02:10:06,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 02:10:06,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 02:10:06,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 02:10:06,823 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 02:10:24,776 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 02:10:24,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:10:24 BoogieIcfgContainer [2018-10-25 02:10:24,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 02:10:24,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 02:10:24,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 02:10:24,782 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 02:10:24,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 02:10:02" (1/3) ... [2018-10-25 02:10:24,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d31145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:10:24, skipping insertion in model container [2018-10-25 02:10:24,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:10:05" (2/3) ... [2018-10-25 02:10:24,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73d31145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:10:24, skipping insertion in model container [2018-10-25 02:10:24,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:10:24" (3/3) ... [2018-10-25 02:10:24,786 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label16_true-unreach-call.c [2018-10-25 02:10:24,796 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 02:10:24,806 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 02:10:24,824 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 02:10:24,884 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 02:10:24,884 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 02:10:24,885 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 02:10:24,885 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 02:10:24,885 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 02:10:24,885 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 02:10:24,885 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 02:10:24,886 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 02:10:24,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-25 02:10:24,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-10-25 02:10:24,953 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:10:24,958 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:10:24,960 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:10:24,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:10:24,971 INFO L82 PathProgramCache]: Analyzing trace with hash -370651844, now seen corresponding path program 1 times [2018-10-25 02:10:24,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:10:25,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:10:25,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:10:25,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:10:25,033 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:10:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:10:25,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:10:25,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:10:25,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 02:10:25,541 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:10:25,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 02:10:25,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 02:10:25,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:10:25,568 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-10-25 02:10:49,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:10:49,286 INFO L93 Difference]: Finished difference Result 6513 states and 12383 transitions. [2018-10-25 02:10:49,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 02:10:49,288 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-10-25 02:10:49,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:10:49,487 INFO L225 Difference]: With dead ends: 6513 [2018-10-25 02:10:49,488 INFO L226 Difference]: Without dead ends: 4729 [2018-10-25 02:10:49,504 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:10:49,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4729 states. [2018-10-25 02:10:49,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4729 to 4693. [2018-10-25 02:10:49,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4693 states. [2018-10-25 02:10:49,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4693 states to 4693 states and 7735 transitions. [2018-10-25 02:10:49,757 INFO L78 Accepts]: Start accepts. Automaton has 4693 states and 7735 transitions. Word has length 60 [2018-10-25 02:10:49,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:10:49,758 INFO L481 AbstractCegarLoop]: Abstraction has 4693 states and 7735 transitions. [2018-10-25 02:10:49,758 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 02:10:49,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4693 states and 7735 transitions. [2018-10-25 02:10:49,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-25 02:10:49,774 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:10:49,774 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 02:10:49,775 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:10:49,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:10:49,775 INFO L82 PathProgramCache]: Analyzing trace with hash 784651985, now seen corresponding path program 1 times [2018-10-25 02:10:49,775 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:10:49,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:10:49,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:10:49,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:10:49,780 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:10:49,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:10:50,093 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:10:50,494 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:10:50,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:10:50,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:10:50,495 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:10:50,498 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:10:50,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:10:50,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:10:50,499 INFO L87 Difference]: Start difference. First operand 4693 states and 7735 transitions. Second operand 6 states. [2018-10-25 02:11:21,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:11:21,420 INFO L93 Difference]: Finished difference Result 17898 states and 30191 transitions. [2018-10-25 02:11:21,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 02:11:21,422 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-10-25 02:11:21,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:11:21,497 INFO L225 Difference]: With dead ends: 17898 [2018-10-25 02:11:21,497 INFO L226 Difference]: Without dead ends: 13211 [2018-10-25 02:11:21,518 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:11:21,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13211 states. [2018-10-25 02:11:21,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13211 to 13142. [2018-10-25 02:11:21,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13142 states. [2018-10-25 02:11:21,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13142 states to 13142 states and 19386 transitions. [2018-10-25 02:11:21,908 INFO L78 Accepts]: Start accepts. Automaton has 13142 states and 19386 transitions. Word has length 132 [2018-10-25 02:11:21,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:11:21,909 INFO L481 AbstractCegarLoop]: Abstraction has 13142 states and 19386 transitions. [2018-10-25 02:11:21,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:11:21,909 INFO L276 IsEmpty]: Start isEmpty. Operand 13142 states and 19386 transitions. [2018-10-25 02:11:21,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-25 02:11:21,916 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:11:21,917 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 02:11:21,921 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:11:21,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:11:21,921 INFO L82 PathProgramCache]: Analyzing trace with hash -184474481, now seen corresponding path program 1 times [2018-10-25 02:11:21,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:11:21,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:11:21,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:11:21,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:11:21,924 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:11:21,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:11:22,469 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:11:22,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:11:22,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:11:22,470 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:11:22,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:11:22,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:11:22,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:11:22,472 INFO L87 Difference]: Start difference. First operand 13142 states and 19386 transitions. Second operand 6 states. [2018-10-25 02:11:47,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:11:47,066 INFO L93 Difference]: Finished difference Result 39956 states and 60313 transitions. [2018-10-25 02:11:47,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-25 02:11:47,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-10-25 02:11:47,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:11:47,168 INFO L225 Difference]: With dead ends: 39956 [2018-10-25 02:11:47,168 INFO L226 Difference]: Without dead ends: 26820 [2018-10-25 02:11:47,212 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:11:47,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26820 states. [2018-10-25 02:11:47,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26820 to 26583. [2018-10-25 02:11:47,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26583 states. [2018-10-25 02:11:47,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26583 states to 26583 states and 38711 transitions. [2018-10-25 02:11:47,826 INFO L78 Accepts]: Start accepts. Automaton has 26583 states and 38711 transitions. Word has length 142 [2018-10-25 02:11:47,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:11:47,827 INFO L481 AbstractCegarLoop]: Abstraction has 26583 states and 38711 transitions. [2018-10-25 02:11:47,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:11:47,827 INFO L276 IsEmpty]: Start isEmpty. Operand 26583 states and 38711 transitions. [2018-10-25 02:11:47,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-25 02:11:47,832 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:11:47,832 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:11:47,832 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:11:47,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:11:47,833 INFO L82 PathProgramCache]: Analyzing trace with hash 739388191, now seen corresponding path program 1 times [2018-10-25 02:11:47,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:11:47,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:11:47,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:11:47,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:11:47,839 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:11:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:11:48,216 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:11:48,434 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:11:48,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:11:48,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:11:48,435 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:11:48,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:11:48,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:11:48,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:11:48,437 INFO L87 Difference]: Start difference. First operand 26583 states and 38711 transitions. Second operand 6 states. [2018-10-25 02:12:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:12:10,940 INFO L93 Difference]: Finished difference Result 70637 states and 106911 transitions. [2018-10-25 02:12:10,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:12:10,946 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2018-10-25 02:12:10,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:12:11,117 INFO L225 Difference]: With dead ends: 70637 [2018-10-25 02:12:11,118 INFO L226 Difference]: Without dead ends: 44060 [2018-10-25 02:12:11,592 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:12:11,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44060 states. [2018-10-25 02:12:12,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44060 to 43902. [2018-10-25 02:12:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43902 states. [2018-10-25 02:12:12,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43902 states to 43902 states and 61188 transitions. [2018-10-25 02:12:12,425 INFO L78 Accepts]: Start accepts. Automaton has 43902 states and 61188 transitions. Word has length 175 [2018-10-25 02:12:12,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:12:12,425 INFO L481 AbstractCegarLoop]: Abstraction has 43902 states and 61188 transitions. [2018-10-25 02:12:12,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:12:12,426 INFO L276 IsEmpty]: Start isEmpty. Operand 43902 states and 61188 transitions. [2018-10-25 02:12:12,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-10-25 02:12:12,437 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:12:12,437 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:12:12,438 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:12:12,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:12:12,438 INFO L82 PathProgramCache]: Analyzing trace with hash 2050066253, now seen corresponding path program 1 times [2018-10-25 02:12:12,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:12:12,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:12:12,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:12:12,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:12:12,442 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:12:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:12:12,737 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:12:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 159 proven. 134 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-10-25 02:12:13,121 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:12:13,122 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:12:13,123 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 286 with the following transitions: [2018-10-25 02:12:13,125 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5554], [5562], [5570], [5578], [5586], [5594], [5602], [5606], [5608], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5719], [5722], [5726], [5727], [5731], [5742], [5746], [5749], [5750], [5754], [5758], [5762], [5766], [5769], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-25 02:12:13,179 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:12:13,179 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:12:13,675 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 02:12:13,677 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-25 02:12:13,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:12:13,725 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 02:12:14,363 INFO L232 lantSequenceWeakener]: Weakened 271 states. On average, predicates are now at 75.65% of their original sizes. [2018-10-25 02:12:14,363 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 02:12:14,646 INFO L413 sIntCurrentIteration]: We have 284 unified AI predicates [2018-10-25 02:12:14,646 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 02:12:14,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 02:12:14,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-25 02:12:14,649 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:12:14,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:12:14,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:12:14,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:12:14,650 INFO L87 Difference]: Start difference. First operand 43902 states and 61188 transitions. Second operand 6 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown