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.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b6335f6 [2018-10-23 10:04:26,618 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 10:04:26,623 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 10:04:26,640 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 10:04:26,641 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 10:04:26,642 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 10:04:26,644 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 10:04:26,647 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 10:04:26,649 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 10:04:26,651 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 10:04:26,654 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 10:04:26,654 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 10:04:26,655 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 10:04:26,658 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 10:04:26,659 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 10:04:26,667 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 10:04:26,668 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 10:04:26,672 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 10:04:26,674 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 10:04:26,675 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 10:04:26,679 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 10:04:26,680 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 10:04:26,682 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-23 10:04:26,688 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 10:04:26,688 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 10:04:26,689 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 10:04:26,690 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 10:04:26,690 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 10:04:26,715 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 10:04:26,715 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 10:04:26,716 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 10:04:26,716 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 10:04:26,716 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 10:04:26,716 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 10:04:26,717 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 10:04:26,717 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 10:04:26,717 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 10:04:26,717 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 10:04:26,718 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 10:04:26,718 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 10:04:26,718 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 10:04:26,719 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 10:04:26,719 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 10:04:26,719 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 10:04:26,719 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 10:04:26,719 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 10:04:26,720 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 10:04:26,720 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 10:04:26,720 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 10:04:26,720 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 10:04:26,720 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 10:04:26,721 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 10:04:26,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 10:04:26,721 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 10:04:26,721 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 10:04:26,721 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 10:04:26,721 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 10:04:26,722 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 10:04:26,722 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 10:04:26,722 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 10:04:26,722 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 10:04:26,722 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 10:04:26,765 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 10:04:26,783 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 10:04:26,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 10:04:26,788 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 10:04:26,788 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 10:04:26,789 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c [2018-10-23 10:04:26,849 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e8ff49c2c/a43563d7b7ef488bb1ec6ea712a15681/FLAGb46dd889a [2018-10-23 10:04:27,320 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 10:04:27,321 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c [2018-10-23 10:04:27,334 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e8ff49c2c/a43563d7b7ef488bb1ec6ea712a15681/FLAGb46dd889a [2018-10-23 10:04:27,357 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e8ff49c2c/a43563d7b7ef488bb1ec6ea712a15681 [2018-10-23 10:04:27,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 10:04:27,372 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 10:04:27,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 10:04:27,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 10:04:27,378 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 10:04:27,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae141cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27, skipping insertion in model container [2018-10-23 10:04:27,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 10:04:27,438 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 10:04:27,687 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 10:04:27,692 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 10:04:27,762 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 10:04:27,785 INFO L193 MainTranslator]: Completed translation [2018-10-23 10:04:27,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27 WrapperNode [2018-10-23 10:04:27,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 10:04:27,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 10:04:27,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 10:04:27,787 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 10:04:27,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 10:04:27,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 10:04:27,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 10:04:27,817 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 10:04:27,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (1/1) ... [2018-10-23 10:04:27,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 10:04:27,864 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 10:04:27,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 10:04:27,865 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 10:04:27,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (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 [2018-10-23 10:04:28,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 10:04:28,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 10:04:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 10:04:28,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 10:04:28,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 10:04:28,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 10:04:28,666 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 10:04:28,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:04:28 BoogieIcfgContainer [2018-10-23 10:04:28,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 10:04:28,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 10:04:28,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 10:04:28,672 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 10:04:28,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:04:27" (1/3) ... [2018-10-23 10:04:28,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af25a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:04:28, skipping insertion in model container [2018-10-23 10:04:28,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:04:27" (2/3) ... [2018-10-23 10:04:28,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1af25a88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:04:28, skipping insertion in model container [2018-10-23 10:04:28,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:04:28" (3/3) ... [2018-10-23 10:04:28,676 INFO L112 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c [2018-10-23 10:04:28,686 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 10:04:28,696 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2018-10-23 10:04:28,715 INFO L257 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2018-10-23 10:04:28,752 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 10:04:28,753 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 10:04:28,753 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 10:04:28,753 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 10:04:28,753 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 10:04:28,753 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 10:04:28,754 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 10:04:28,754 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 10:04:28,777 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-10-23 10:04:28,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-23 10:04:28,784 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:28,785 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 10:04:28,788 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:28,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:28,795 INFO L82 PathProgramCache]: Analyzing trace with hash -1118366569, now seen corresponding path program 1 times [2018-10-23 10:04:28,798 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:28,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:28,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:28,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:28,858 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:29,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:29,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:29,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 10:04:29,024 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:29,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 10:04:29,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 10:04:29,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 10:04:29,048 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2018-10-23 10:04:29,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:29,097 INFO L93 Difference]: Finished difference Result 88 states and 116 transitions. [2018-10-23 10:04:29,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 10:04:29,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-23 10:04:29,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:29,111 INFO L225 Difference]: With dead ends: 88 [2018-10-23 10:04:29,111 INFO L226 Difference]: Without dead ends: 76 [2018-10-23 10:04:29,115 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 10:04:29,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-10-23 10:04:29,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2018-10-23 10:04:29,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-10-23 10:04:29,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2018-10-23 10:04:29,160 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 13 [2018-10-23 10:04:29,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:29,161 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2018-10-23 10:04:29,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 10:04:29,161 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2018-10-23 10:04:29,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-23 10:04:29,162 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:29,162 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 10:04:29,163 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:29,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:29,163 INFO L82 PathProgramCache]: Analyzing trace with hash -306453431, now seen corresponding path program 1 times [2018-10-23 10:04:29,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:29,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:29,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:29,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:29,165 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:29,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:29,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:29,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 10:04:29,246 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:29,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 10:04:29,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 10:04:29,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-23 10:04:29,249 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 4 states. [2018-10-23 10:04:29,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:29,606 INFO L93 Difference]: Finished difference Result 153 states and 168 transitions. [2018-10-23 10:04:29,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 10:04:29,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-10-23 10:04:29,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:29,609 INFO L225 Difference]: With dead ends: 153 [2018-10-23 10:04:29,609 INFO L226 Difference]: Without dead ends: 101 [2018-10-23 10:04:29,610 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-23 10:04:29,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-10-23 10:04:29,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 58. [2018-10-23 10:04:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-10-23 10:04:29,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-10-23 10:04:29,628 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 14 [2018-10-23 10:04:29,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:29,628 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-10-23 10:04:29,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 10:04:29,629 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-10-23 10:04:29,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-23 10:04:29,629 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:29,630 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 10:04:29,631 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:29,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:29,632 INFO L82 PathProgramCache]: Analyzing trace with hash -309622200, now seen corresponding path program 1 times [2018-10-23 10:04:29,632 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:29,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:29,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:29,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:29,634 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:29,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:29,765 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:29,765 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 10:04:29,765 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:29,765 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 10:04:29,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 10:04:29,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 10:04:29,766 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 5 states. [2018-10-23 10:04:30,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:30,017 INFO L93 Difference]: Finished difference Result 75 states and 82 transitions. [2018-10-23 10:04:30,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 10:04:30,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-10-23 10:04:30,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:30,019 INFO L225 Difference]: With dead ends: 75 [2018-10-23 10:04:30,019 INFO L226 Difference]: Without dead ends: 73 [2018-10-23 10:04:30,020 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 10:04:30,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-10-23 10:04:30,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 56. [2018-10-23 10:04:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-10-23 10:04:30,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-10-23 10:04:30,034 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 14 [2018-10-23 10:04:30,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:30,035 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-10-23 10:04:30,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 10:04:30,035 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-10-23 10:04:30,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-23 10:04:30,036 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:30,036 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 10:04:30,037 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:30,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:30,037 INFO L82 PathProgramCache]: Analyzing trace with hash -910118681, now seen corresponding path program 1 times [2018-10-23 10:04:30,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:30,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:30,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:30,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:30,039 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:30,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:30,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:30,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 10:04:30,170 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:30,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 10:04:30,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 10:04:30,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-23 10:04:30,172 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 6 states. [2018-10-23 10:04:30,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:30,485 INFO L93 Difference]: Finished difference Result 98 states and 106 transitions. [2018-10-23 10:04:30,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 10:04:30,487 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-10-23 10:04:30,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:30,490 INFO L225 Difference]: With dead ends: 98 [2018-10-23 10:04:30,490 INFO L226 Difference]: Without dead ends: 96 [2018-10-23 10:04:30,490 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-10-23 10:04:30,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-10-23 10:04:30,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 54. [2018-10-23 10:04:30,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-10-23 10:04:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2018-10-23 10:04:30,507 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 15 [2018-10-23 10:04:30,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:30,507 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2018-10-23 10:04:30,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 10:04:30,507 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2018-10-23 10:04:30,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-23 10:04:30,508 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:30,509 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 10:04:30,511 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:30,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:30,512 INFO L82 PathProgramCache]: Analyzing trace with hash 1851095055, now seen corresponding path program 1 times [2018-10-23 10:04:30,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:30,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:30,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:30,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:30,514 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:30,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:30,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:30,817 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-23 10:04:30,817 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:30,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-23 10:04:30,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-23 10:04:30,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-10-23 10:04:30,818 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 8 states. [2018-10-23 10:04:31,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:31,579 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2018-10-23 10:04:31,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 10:04:31,579 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2018-10-23 10:04:31,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:31,585 INFO L225 Difference]: With dead ends: 97 [2018-10-23 10:04:31,585 INFO L226 Difference]: Without dead ends: 95 [2018-10-23 10:04:31,586 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-10-23 10:04:31,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2018-10-23 10:04:31,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 52. [2018-10-23 10:04:31,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-10-23 10:04:31,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-10-23 10:04:31,601 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 16 [2018-10-23 10:04:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:31,602 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-10-23 10:04:31,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-23 10:04:31,602 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-10-23 10:04:31,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-23 10:04:31,603 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:31,603 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 10:04:31,604 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:31,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:31,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1194066488, now seen corresponding path program 1 times [2018-10-23 10:04:31,605 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:31,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:31,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:31,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:31,613 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:31,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:31,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:31,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 10:04:31,699 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:31,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 10:04:31,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 10:04:31,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 10:04:31,700 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 5 states. [2018-10-23 10:04:31,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:31,882 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2018-10-23 10:04:31,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 10:04:31,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-10-23 10:04:31,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:31,885 INFO L225 Difference]: With dead ends: 83 [2018-10-23 10:04:31,885 INFO L226 Difference]: Without dead ends: 81 [2018-10-23 10:04:31,886 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-23 10:04:31,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-10-23 10:04:31,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 50. [2018-10-23 10:04:31,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-23 10:04:31,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2018-10-23 10:04:31,894 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 16 [2018-10-23 10:04:31,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:31,894 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2018-10-23 10:04:31,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 10:04:31,895 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2018-10-23 10:04:31,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-23 10:04:31,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:31,896 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 10:04:31,896 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:31,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:31,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1549374957, now seen corresponding path program 1 times [2018-10-23 10:04:31,897 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:31,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:31,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:31,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:31,898 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:32,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:32,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:32,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 10:04:32,013 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:32,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 10:04:32,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 10:04:32,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-23 10:04:32,014 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 6 states. [2018-10-23 10:04:32,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:32,429 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2018-10-23 10:04:32,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 10:04:32,429 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-10-23 10:04:32,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:32,430 INFO L225 Difference]: With dead ends: 93 [2018-10-23 10:04:32,431 INFO L226 Difference]: Without dead ends: 91 [2018-10-23 10:04:32,431 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-10-23 10:04:32,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-10-23 10:04:32,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 48. [2018-10-23 10:04:32,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-23 10:04:32,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2018-10-23 10:04:32,444 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 17 [2018-10-23 10:04:32,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:32,445 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2018-10-23 10:04:32,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 10:04:32,445 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2018-10-23 10:04:32,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-23 10:04:32,445 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:32,446 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 10:04:32,446 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:32,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:32,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1638647651, now seen corresponding path program 1 times [2018-10-23 10:04:32,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:32,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:32,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:32,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:32,450 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:32,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:32,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 10:04:32,529 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:32,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 10:04:32,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 10:04:32,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-23 10:04:32,530 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 5 states. [2018-10-23 10:04:32,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:32,706 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2018-10-23 10:04:32,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 10:04:32,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-10-23 10:04:32,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:32,708 INFO L225 Difference]: With dead ends: 73 [2018-10-23 10:04:32,709 INFO L226 Difference]: Without dead ends: 71 [2018-10-23 10:04:32,710 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-23 10:04:32,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-10-23 10:04:32,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 46. [2018-10-23 10:04:32,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-10-23 10:04:32,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2018-10-23 10:04:32,718 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2018-10-23 10:04:32,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:32,718 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2018-10-23 10:04:32,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 10:04:32,718 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2018-10-23 10:04:32,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-23 10:04:32,719 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:32,719 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 10:04:32,720 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:32,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:32,720 INFO L82 PathProgramCache]: Analyzing trace with hash -741527250, now seen corresponding path program 1 times [2018-10-23 10:04:32,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:32,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:32,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:32,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:32,722 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:32,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:32,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:32,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 10:04:32,803 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:32,803 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 10:04:32,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 10:04:32,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-23 10:04:32,805 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 6 states. [2018-10-23 10:04:33,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:33,020 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2018-10-23 10:04:33,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 10:04:33,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-10-23 10:04:33,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:33,022 INFO L225 Difference]: With dead ends: 71 [2018-10-23 10:04:33,022 INFO L226 Difference]: Without dead ends: 69 [2018-10-23 10:04:33,023 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-10-23 10:04:33,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-10-23 10:04:33,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 44. [2018-10-23 10:04:33,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-23 10:04:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2018-10-23 10:04:33,030 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 18 [2018-10-23 10:04:33,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:33,030 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2018-10-23 10:04:33,031 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 10:04:33,031 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-10-23 10:04:33,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-23 10:04:33,032 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:33,032 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 10:04:33,032 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:33,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:33,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1512505143, now seen corresponding path program 1 times [2018-10-23 10:04:33,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:33,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:33,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:33,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:33,034 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:33,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:33,119 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:33,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 10:04:33,120 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:33,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 10:04:33,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 10:04:33,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 10:04:33,121 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 5 states. [2018-10-23 10:04:33,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:33,265 INFO L93 Difference]: Finished difference Result 71 states and 82 transitions. [2018-10-23 10:04:33,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 10:04:33,266 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-10-23 10:04:33,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:33,267 INFO L225 Difference]: With dead ends: 71 [2018-10-23 10:04:33,267 INFO L226 Difference]: Without dead ends: 69 [2018-10-23 10:04:33,268 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 10:04:33,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-10-23 10:04:33,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 42. [2018-10-23 10:04:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-10-23 10:04:33,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2018-10-23 10:04:33,276 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 19 [2018-10-23 10:04:33,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:33,276 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2018-10-23 10:04:33,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 10:04:33,276 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2018-10-23 10:04:33,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-23 10:04:33,277 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:33,277 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] [2018-10-23 10:04:33,278 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:33,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:33,278 INFO L82 PathProgramCache]: Analyzing trace with hash 356983956, now seen corresponding path program 1 times [2018-10-23 10:04:33,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:33,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:33,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:33,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:33,280 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:33,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:33,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:33,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-23 10:04:33,360 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:33,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 10:04:33,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 10:04:33,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-23 10:04:33,360 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2018-10-23 10:04:33,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:33,521 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2018-10-23 10:04:33,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 10:04:33,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-10-23 10:04:33,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:33,523 INFO L225 Difference]: With dead ends: 69 [2018-10-23 10:04:33,524 INFO L226 Difference]: Without dead ends: 67 [2018-10-23 10:04:33,525 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-23 10:04:33,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-10-23 10:04:33,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 40. [2018-10-23 10:04:33,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-23 10:04:33,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2018-10-23 10:04:33,533 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 20 [2018-10-23 10:04:33,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:33,534 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2018-10-23 10:04:33,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 10:04:33,534 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-10-23 10:04:33,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-23 10:04:33,535 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:33,535 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] [2018-10-23 10:04:33,535 INFO L424 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:33,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:33,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1818396113, now seen corresponding path program 1 times [2018-10-23 10:04:33,536 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:33,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:33,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:33,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:33,537 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:33,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:33,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:33,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 10:04:33,629 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:33,629 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 10:04:33,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 10:04:33,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-23 10:04:33,630 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand 6 states. [2018-10-23 10:04:33,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:33,843 INFO L93 Difference]: Finished difference Result 89 states and 103 transitions. [2018-10-23 10:04:33,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 10:04:33,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-10-23 10:04:33,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:33,844 INFO L225 Difference]: With dead ends: 89 [2018-10-23 10:04:33,844 INFO L226 Difference]: Without dead ends: 87 [2018-10-23 10:04:33,845 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-23 10:04:33,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-10-23 10:04:33,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 38. [2018-10-23 10:04:33,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-23 10:04:33,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-10-23 10:04:33,853 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 21 [2018-10-23 10:04:33,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:33,853 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-10-23 10:04:33,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 10:04:33,854 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-10-23 10:04:33,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-23 10:04:33,854 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:33,855 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] [2018-10-23 10:04:33,855 INFO L424 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:33,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:33,856 INFO L82 PathProgramCache]: Analyzing trace with hash -535701510, now seen corresponding path program 1 times [2018-10-23 10:04:33,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:33,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:33,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:33,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:33,857 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:33,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:33,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-23 10:04:33,944 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:33,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 10:04:33,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 10:04:33,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-23 10:04:33,945 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 7 states. [2018-10-23 10:04:34,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:34,622 INFO L93 Difference]: Finished difference Result 72 states and 83 transitions. [2018-10-23 10:04:34,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 10:04:34,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-10-23 10:04:34,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:34,624 INFO L225 Difference]: With dead ends: 72 [2018-10-23 10:04:34,625 INFO L226 Difference]: Without dead ends: 70 [2018-10-23 10:04:34,625 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2018-10-23 10:04:34,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-10-23 10:04:34,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 36. [2018-10-23 10:04:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-10-23 10:04:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-10-23 10:04:34,633 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 22 [2018-10-23 10:04:34,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:34,633 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-10-23 10:04:34,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 10:04:34,633 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-10-23 10:04:34,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-23 10:04:34,634 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:34,634 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] [2018-10-23 10:04:34,635 INFO L424 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:34,635 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:34,635 INFO L82 PathProgramCache]: Analyzing trace with hash 573125525, now seen corresponding path program 1 times [2018-10-23 10:04:34,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:34,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:34,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:34,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:34,637 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:34,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:34,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:34,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 10:04:34,730 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:34,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 10:04:34,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 10:04:34,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-23 10:04:34,731 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2018-10-23 10:04:35,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:35,050 INFO L93 Difference]: Finished difference Result 105 states and 124 transitions. [2018-10-23 10:04:35,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-23 10:04:35,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-10-23 10:04:35,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:35,052 INFO L225 Difference]: With dead ends: 105 [2018-10-23 10:04:35,052 INFO L226 Difference]: Without dead ends: 103 [2018-10-23 10:04:35,053 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-10-23 10:04:35,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2018-10-23 10:04:35,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 34. [2018-10-23 10:04:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-23 10:04:35,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2018-10-23 10:04:35,070 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 23 [2018-10-23 10:04:35,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:35,070 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2018-10-23 10:04:35,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 10:04:35,070 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2018-10-23 10:04:35,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-23 10:04:35,071 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:35,072 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] [2018-10-23 10:04:35,072 INFO L424 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:35,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:35,073 INFO L82 PathProgramCache]: Analyzing trace with hash 587025248, now seen corresponding path program 1 times [2018-10-23 10:04:35,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:35,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:35,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:35,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:35,077 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:35,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:35,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:35,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-23 10:04:35,269 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:35,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 10:04:35,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 10:04:35,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-23 10:04:35,270 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 7 states. [2018-10-23 10:04:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:35,895 INFO L93 Difference]: Finished difference Result 70 states and 81 transitions. [2018-10-23 10:04:35,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 10:04:35,895 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-10-23 10:04:35,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:35,896 INFO L225 Difference]: With dead ends: 70 [2018-10-23 10:04:35,896 INFO L226 Difference]: Without dead ends: 68 [2018-10-23 10:04:35,897 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2018-10-23 10:04:35,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-10-23 10:04:35,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 32. [2018-10-23 10:04:35,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-23 10:04:35,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-10-23 10:04:35,905 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 24 [2018-10-23 10:04:35,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:35,905 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-10-23 10:04:35,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 10:04:35,905 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-10-23 10:04:35,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-23 10:04:35,906 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 10:04:35,906 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] [2018-10-23 10:04:35,907 INFO L424 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 10:04:35,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 10:04:35,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1017916667, now seen corresponding path program 1 times [2018-10-23 10:04:35,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 10:04:35,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:35,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 10:04:35,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 10:04:35,909 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 10:04:35,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 10:04:35,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 10:04:35,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 10:04:35,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 10:04:35,990 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 10:04:35,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 10:04:35,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 10:04:35,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-10-23 10:04:35,992 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 6 states. [2018-10-23 10:04:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 10:04:36,269 INFO L93 Difference]: Finished difference Result 85 states and 100 transitions. [2018-10-23 10:04:36,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 10:04:36,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-10-23 10:04:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 10:04:36,271 INFO L225 Difference]: With dead ends: 85 [2018-10-23 10:04:36,271 INFO L226 Difference]: Without dead ends: 0 [2018-10-23 10:04:36,272 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-10-23 10:04:36,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-23 10:04:36,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-23 10:04:36,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-23 10:04:36,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-23 10:04:36,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-10-23 10:04:36,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 10:04:36,274 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-23 10:04:36,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 10:04:36,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-23 10:04:36,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-23 10:04:36,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-23 10:04:36,301 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 10:04:36,501 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 63 [2018-10-23 10:04:36,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 10:04:36,670 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 94 [2018-10-23 10:04:36,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 10:04:36,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 10:04:36,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 10:04:36,867 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 86 [2018-10-23 10:04:38,706 WARN L179 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 63 DAG size of output: 9 [2018-10-23 10:04:39,546 WARN L179 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 33 [2018-10-23 10:04:40,087 WARN L179 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 18 [2018-10-23 10:04:40,090 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-23 10:04:40,091 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-23 10:04:40,091 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-23 10:04:40,091 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-23 10:04:40,091 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-23 10:04:40,091 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-23 10:04:40,091 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-23 10:04:40,092 INFO L425 ceAbstractionStarter]: For program point L93(lines 93 120) no Hoare annotation was computed. [2018-10-23 10:04:40,092 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 260) no Hoare annotation was computed. [2018-10-23 10:04:40,092 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 308) no Hoare annotation was computed. [2018-10-23 10:04:40,092 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 281) no Hoare annotation was computed. [2018-10-23 10:04:40,092 INFO L425 ceAbstractionStarter]: For program point L69(lines 69 124) no Hoare annotation was computed. [2018-10-23 10:04:40,092 INFO L421 ceAbstractionStarter]: At program point L259(lines 26 301) the Hoare annotation is: (let ((.cse2 (<= (+ main_~main__j~0 4) main_~main__bufsize~0))) (let ((.cse0 (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) (.cse1 (and (<= 1 main_~main__j~0) (let ((.cse3 (<= 1 main_~main__i~0))) (or (and .cse3 (not (= 0 main_~__VERIFIER_assert__cond~12))) (and .cse3 .cse2)))))) (or (and .cse0 .cse1 (not (= 0 main_~__VERIFIER_assert__cond~14))) (and (and .cse0 (and (< main_~main__i~0 main_~main__len~0) (<= 0 main_~main__i~0))) (<= 0 main_~main__j~0)) (and .cse0 .cse1 .cse2)))) [2018-10-23 10:04:40,093 INFO L425 ceAbstractionStarter]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2018-10-23 10:04:40,093 INFO L425 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-10-23 10:04:40,093 INFO L425 ceAbstractionStarter]: For program point L61(lines 61 280) no Hoare annotation was computed. [2018-10-23 10:04:40,093 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2018-10-23 10:04:40,093 INFO L425 ceAbstractionStarter]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2018-10-23 10:04:40,093 INFO L425 ceAbstractionStarter]: For program point L210(lines 210 266) no Hoare annotation was computed. [2018-10-23 10:04:40,093 INFO L425 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-10-23 10:04:40,093 INFO L425 ceAbstractionStarter]: For program point L95(line 95) no Hoare annotation was computed. [2018-10-23 10:04:40,093 INFO L425 ceAbstractionStarter]: For program point L252(line 252) no Hoare annotation was computed. [2018-10-23 10:04:40,093 INFO L425 ceAbstractionStarter]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2018-10-23 10:04:40,094 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 270) no Hoare annotation was computed. [2018-10-23 10:04:40,094 INFO L425 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-10-23 10:04:40,094 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2018-10-23 10:04:40,094 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 107) no Hoare annotation was computed. [2018-10-23 10:04:40,094 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 308) no Hoare annotation was computed. [2018-10-23 10:04:40,094 INFO L425 ceAbstractionStarter]: For program point L170(lines 170 272) no Hoare annotation was computed. [2018-10-23 10:04:40,094 INFO L425 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-10-23 10:04:40,094 INFO L425 ceAbstractionStarter]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 240) no Hoare annotation was computed. [2018-10-23 10:04:40,094 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 8 308) the Hoare annotation is: true [2018-10-23 10:04:40,094 INFO L425 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 172) no Hoare annotation was computed. [2018-10-23 10:04:40,094 INFO L425 ceAbstractionStarter]: For program point L212(line 212) no Hoare annotation was computed. [2018-10-23 10:04:40,095 INFO L425 ceAbstractionStarter]: For program point L146(lines 146 276) no Hoare annotation was computed. [2018-10-23 10:04:40,095 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2018-10-23 10:04:40,095 INFO L425 ceAbstractionStarter]: For program point L105(lines 105 118) no Hoare annotation was computed. [2018-10-23 10:04:40,095 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 295) no Hoare annotation was computed. [2018-10-23 10:04:40,095 INFO L425 ceAbstractionStarter]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 252) no Hoare annotation was computed. [2018-10-23 10:04:40,095 INFO L425 ceAbstractionStarter]: For program point L188(line 188) no Hoare annotation was computed. [2018-10-23 10:04:40,095 INFO L425 ceAbstractionStarter]: For program point L81(lines 81 122) no Hoare annotation was computed. [2018-10-23 10:04:40,095 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 307) no Hoare annotation was computed. [2018-10-23 10:04:40,095 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 262) no Hoare annotation was computed. [2018-10-23 10:04:40,095 INFO L425 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-10-23 10:04:40,096 INFO L425 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 160) no Hoare annotation was computed. [2018-10-23 10:04:40,096 INFO L425 ceAbstractionStarter]: For program point L40(lines 40 283) no Hoare annotation was computed. [2018-10-23 10:04:40,096 INFO L425 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 148) no Hoare annotation was computed. [2018-10-23 10:04:40,096 INFO L421 ceAbstractionStarter]: At program point L288(lines 33 289) the Hoare annotation is: (and (< main_~main__i~0 main_~main__len~0) (<= (+ main_~main__j~0 5) main_~main__bufsize~0) (<= 0 main_~main__i~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0) (<= 0 main_~main__j~0)) [2018-10-23 10:04:40,096 INFO L425 ceAbstractionStarter]: For program point L222(lines 222 264) no Hoare annotation was computed. [2018-10-23 10:04:40,096 INFO L425 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-10-23 10:04:40,097 INFO L425 ceAbstractionStarter]: For program point L107(line 107) no Hoare annotation was computed. [2018-10-23 10:04:40,097 INFO L425 ceAbstractionStarter]: For program point L198(lines 198 268) no Hoare annotation was computed. [2018-10-23 10:04:40,097 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2018-10-23 10:04:40,097 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 289) no Hoare annotation was computed. [2018-10-23 10:04:40,097 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2018-10-23 10:04:40,097 INFO L425 ceAbstractionStarter]: For program point L83(line 83) no Hoare annotation was computed. [2018-10-23 10:04:40,097 INFO L425 ceAbstractionStarter]: For program point L240(line 240) no Hoare annotation was computed. [2018-10-23 10:04:40,097 INFO L425 ceAbstractionStarter]: For program point L42(line 42) no Hoare annotation was computed. [2018-10-23 10:04:40,098 INFO L425 ceAbstractionStarter]: For program point L224(line 224) no Hoare annotation was computed. [2018-10-23 10:04:40,098 INFO L425 ceAbstractionStarter]: For program point L158(lines 158 274) no Hoare annotation was computed. [2018-10-23 10:04:40,098 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 136) no Hoare annotation was computed. [2018-10-23 10:04:40,098 INFO L421 ceAbstractionStarter]: At program point L299(lines 20 307) the Hoare annotation is: (and (<= 0 main_~main__i~0) (<= (+ main_~main__limit~0 4) main_~main__bufsize~0)) [2018-10-23 10:04:40,098 INFO L425 ceAbstractionStarter]: For program point L200(line 200) no Hoare annotation was computed. [2018-10-23 10:04:40,098 INFO L425 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 188) no Hoare annotation was computed. [2018-10-23 10:04:40,098 INFO L425 ceAbstractionStarter]: For program point L134(lines 134 278) no Hoare annotation was computed. [2018-10-23 10:04:40,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:04:40 BoogieIcfgContainer [2018-10-23 10:04:40,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 10:04:40,117 INFO L168 Benchmark]: Toolchain (without parser) took 12745.69 ms. Allocated memory was 1.6 GB in the beginning and 2.4 GB in the end (delta: 893.9 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -892.6 MB). Peak memory consumption was 604.5 MB. Max. memory is 7.1 GB. [2018-10-23 10:04:40,118 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 10:04:40,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.23 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-23 10:04:40,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.01 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 10:04:40,120 INFO L168 Benchmark]: Boogie Preprocessor took 47.65 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 10:04:40,121 INFO L168 Benchmark]: RCFGBuilder took 803.31 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 771.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -803.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-10-23 10:04:40,122 INFO L168 Benchmark]: TraceAbstraction took 11447.45 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 122.7 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -99.9 MB). Peak memory consumption was 626.0 MB. Max. memory is 7.1 GB. [2018-10-23 10:04:40,126 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 413.23 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 29.01 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.65 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 803.31 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 771.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -803.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11447.45 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 122.7 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -99.9 MB). Peak memory consumption was 626.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 107]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 54]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 148]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 240]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 252]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 224]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 136]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 212]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 188]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 200]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 172]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 160]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 <= main__i && main__limit + 4 <= main__bufsize - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (((main__limit + 4 <= main__bufsize && 1 <= main__j && ((1 <= main__i && !(0 == __VERIFIER_assert__cond)) || (1 <= main__i && main__j + 4 <= main__bufsize))) && !(0 == __VERIFIER_assert__cond)) || ((main__limit + 4 <= main__bufsize && main__i < main__len && 0 <= main__i) && 0 <= main__j)) || ((main__limit + 4 <= main__bufsize && 1 <= main__j && ((1 <= main__i && !(0 == __VERIFIER_assert__cond)) || (1 <= main__i && main__j + 4 <= main__bufsize))) && main__j + 4 <= main__bufsize) - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (((main__i < main__len && main__j + 5 <= main__bufsize) && 0 <= main__i) && main__limit + 4 <= main__bufsize) && 0 <= main__j - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 65 locations, 16 error locations. SAFE Result, 11.3s OverallTime, 16 OverallIterations, 1 TraceHistogramMax, 5.2s AutomataDifference, 0.0s DeadEndRemovalTime, 3.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 917 SDtfs, 1559 SDslu, 1120 SDs, 0 SdLazy, 1186 SolverSat, 144 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 528 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 23 NumberOfFragments, 118 HoareAnnotationTreeSize, 7 FomulaSimplifications, 1474945965 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1237784 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 294 NumberOfCodeBlocks, 294 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 278 ConstructedInterpolants, 0 QuantifiedInterpolants, 14171 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...