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/eca-rers2012/Problem13_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:34:15,691 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:34:15,693 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:34:15,709 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:34:15,710 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:34:15,711 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:34:15,712 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:34:15,714 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:34:15,716 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:34:15,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:34:15,723 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:34:15,726 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:34:15,727 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:34:15,728 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:34:15,731 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:34:15,732 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:34:15,733 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:34:15,736 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:34:15,741 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:34:15,743 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:34:15,745 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:34:15,746 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:34:15,750 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:34:15,757 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:34:15,757 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:34:15,759 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:34:15,759 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:34:15,760 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 [2018-10-24 21:34:15,780 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:34:15,781 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:34:15,781 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:34:15,782 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:34:15,782 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:34:15,782 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:34:15,782 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:34:15,782 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:34:15,783 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:34:15,783 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:34:15,783 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:34:15,783 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:34:15,784 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:34:15,784 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:34:15,784 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:34:15,784 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:34:15,785 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:34:15,785 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:34:15,785 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:34:15,785 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:34:15,785 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:34:15,786 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:34:15,786 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:34:15,786 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:34:15,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:34:15,786 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:34:15,786 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:34:15,787 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:34:15,787 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:34:15,787 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:34:15,787 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:34:15,787 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:34:15,788 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:34:15,788 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:34:15,850 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:34:15,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:34:15,869 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:34:15,871 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:34:15,871 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:34:15,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c [2018-10-24 21:34:15,938 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/89d67d25a/39ab1eaf12384306b177982aa6159247/FLAGaf2102a7e [2018-10-24 21:34:16,686 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:34:16,687 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label47_true-unreach-call.c [2018-10-24 21:34:16,727 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/89d67d25a/39ab1eaf12384306b177982aa6159247/FLAGaf2102a7e [2018-10-24 21:34:16,747 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/89d67d25a/39ab1eaf12384306b177982aa6159247 [2018-10-24 21:34:16,761 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:34:16,763 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:34:16,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:34:16,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:34:16,772 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:34:16,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:34:16" (1/1) ... [2018-10-24 21:34:16,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:16, skipping insertion in model container [2018-10-24 21:34:16,779 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:34:16" (1/1) ... [2018-10-24 21:34:16,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:34:16,983 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:34:18,497 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:34:18,502 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:34:19,227 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:34:19,270 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:34:19,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19 WrapperNode [2018-10-24 21:34:19,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:34:19,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:34:19,273 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:34:19,273 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:34:19,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (1/1) ... [2018-10-24 21:34:19,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (1/1) ... [2018-10-24 21:34:19,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:34:19,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:34:19,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:34:19,862 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:34:19,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (1/1) ... [2018-10-24 21:34:19,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (1/1) ... [2018-10-24 21:34:19,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (1/1) ... [2018-10-24 21:34:19,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (1/1) ... [2018-10-24 21:34:20,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (1/1) ... [2018-10-24 21:34:20,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (1/1) ... [2018-10-24 21:34:20,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (1/1) ... [2018-10-24 21:34:20,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:34:20,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:34:20,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:34:20,286 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:34:20,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (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 [2018-10-24 21:34:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:34:20,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:34:20,363 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 21:34:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 21:34:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 21:34:20,364 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 21:34:20,364 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:34:20,365 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:34:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:34:20,366 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:34:20,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:34:20,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:34:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:34:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:34:31,735 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:34:31,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:34:31 BoogieIcfgContainer [2018-10-24 21:34:31,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:34:31,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:34:31,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:34:31,741 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:34:31,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:34:16" (1/3) ... [2018-10-24 21:34:31,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5791cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:34:31, skipping insertion in model container [2018-10-24 21:34:31,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:34:19" (2/3) ... [2018-10-24 21:34:31,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5791cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:34:31, skipping insertion in model container [2018-10-24 21:34:31,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:34:31" (3/3) ... [2018-10-24 21:34:31,745 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label47_true-unreach-call.c [2018-10-24 21:34:31,755 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:34:31,765 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:34:31,783 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:34:31,836 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:34:31,837 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:34:31,837 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:34:31,837 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:34:31,837 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:34:31,837 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:34:31,837 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:34:31,838 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:34:31,888 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-24 21:34:31,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-10-24 21:34:31,899 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:34:31,901 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:34:31,906 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:34:31,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:34:31,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1678740780, now seen corresponding path program 1 times [2018-10-24 21:34:31,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:34:31,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:34:31,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:34:31,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:34:31,972 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:34:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:34:32,416 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:34:32,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:34:32,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:34:32,575 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:34:32,575 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:34:32,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:34:32,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:34:32,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:34:32,601 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-24 21:34:46,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:34:46,546 INFO L93 Difference]: Finished difference Result 3104 states and 5729 transitions. [2018-10-24 21:34:46,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:34:46,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-10-24 21:34:46,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:34:46,586 INFO L225 Difference]: With dead ends: 3104 [2018-10-24 21:34:46,586 INFO L226 Difference]: Without dead ends: 1982 [2018-10-24 21:34:46,599 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:34:46,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2018-10-24 21:34:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1965. [2018-10-24 21:34:46,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1965 states. [2018-10-24 21:34:46,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 3515 transitions. [2018-10-24 21:34:46,766 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 3515 transitions. Word has length 50 [2018-10-24 21:34:46,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:34:46,767 INFO L481 AbstractCegarLoop]: Abstraction has 1965 states and 3515 transitions. [2018-10-24 21:34:46,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:34:46,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 3515 transitions. [2018-10-24 21:34:46,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-10-24 21:34:46,778 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:34:46,779 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:34:46,782 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:34:46,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:34:46,782 INFO L82 PathProgramCache]: Analyzing trace with hash 307608752, now seen corresponding path program 1 times [2018-10-24 21:34:46,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:34:46,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:34:46,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:34:46,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:34:46,784 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:34:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:34:47,143 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:34:47,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:34:47,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:34:47,143 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:34:47,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:34:47,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:34:47,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:34:47,146 INFO L87 Difference]: Start difference. First operand 1965 states and 3515 transitions. Second operand 5 states. [2018-10-24 21:35:02,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:35:02,158 INFO L93 Difference]: Finished difference Result 5645 states and 10294 transitions. [2018-10-24 21:35:02,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:35:02,161 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2018-10-24 21:35:02,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:35:02,191 INFO L225 Difference]: With dead ends: 5645 [2018-10-24 21:35:02,192 INFO L226 Difference]: Without dead ends: 3686 [2018-10-24 21:35:02,199 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:35:02,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2018-10-24 21:35:02,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3654. [2018-10-24 21:35:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3654 states. [2018-10-24 21:35:02,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 5960 transitions. [2018-10-24 21:35:02,313 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 5960 transitions. Word has length 120 [2018-10-24 21:35:02,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:35:02,313 INFO L481 AbstractCegarLoop]: Abstraction has 3654 states and 5960 transitions. [2018-10-24 21:35:02,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:35:02,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5960 transitions. [2018-10-24 21:35:02,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-24 21:35:02,319 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:35:02,319 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:35:02,319 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:35:02,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:35:02,320 INFO L82 PathProgramCache]: Analyzing trace with hash 778030412, now seen corresponding path program 1 times [2018-10-24 21:35:02,320 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:35:02,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:35:02,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:35:02,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:35:02,322 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:35:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:35:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:35:02,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:35:02,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:35:02,504 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:35:02,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:35:02,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:35:02,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:35:02,505 INFO L87 Difference]: Start difference. First operand 3654 states and 5960 transitions. Second operand 5 states. [2018-10-24 21:35:17,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:35:17,743 INFO L93 Difference]: Finished difference Result 10942 states and 18366 transitions. [2018-10-24 21:35:17,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:35:17,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2018-10-24 21:35:17,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:35:17,786 INFO L225 Difference]: With dead ends: 10942 [2018-10-24 21:35:17,786 INFO L226 Difference]: Without dead ends: 7294 [2018-10-24 21:35:17,799 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:35:17,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7294 states. [2018-10-24 21:35:17,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7294 to 7137. [2018-10-24 21:35:17,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7137 states. [2018-10-24 21:35:18,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 10864 transitions. [2018-10-24 21:35:18,010 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 10864 transitions. Word has length 122 [2018-10-24 21:35:18,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:35:18,011 INFO L481 AbstractCegarLoop]: Abstraction has 7137 states and 10864 transitions. [2018-10-24 21:35:18,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:35:18,013 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 10864 transitions. [2018-10-24 21:35:18,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-24 21:35:18,017 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:35:18,018 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:35:18,018 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:35:18,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:35:18,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1974086272, now seen corresponding path program 1 times [2018-10-24 21:35:18,018 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:35:18,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:35:18,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:35:18,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:35:18,020 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:35:18,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:35:18,176 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:35:18,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:35:18,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:35:18,177 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:35:18,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:35:18,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:35:18,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:35:18,181 INFO L87 Difference]: Start difference. First operand 7137 states and 10864 transitions. Second operand 3 states. [2018-10-24 21:35:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:35:25,889 INFO L93 Difference]: Finished difference Result 20912 states and 33132 transitions. [2018-10-24 21:35:25,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:35:25,891 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2018-10-24 21:35:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:35:25,950 INFO L225 Difference]: With dead ends: 20912 [2018-10-24 21:35:25,951 INFO L226 Difference]: Without dead ends: 13781 [2018-10-24 21:35:25,999 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:35:26,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13781 states. [2018-10-24 21:35:26,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13781 to 13775. [2018-10-24 21:35:26,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13775 states. [2018-10-24 21:35:26,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13775 states to 13775 states and 20149 transitions. [2018-10-24 21:35:26,488 INFO L78 Accepts]: Start accepts. Automaton has 13775 states and 20149 transitions. Word has length 144 [2018-10-24 21:35:26,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:35:26,489 INFO L481 AbstractCegarLoop]: Abstraction has 13775 states and 20149 transitions. [2018-10-24 21:35:26,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:35:26,489 INFO L276 IsEmpty]: Start isEmpty. Operand 13775 states and 20149 transitions. [2018-10-24 21:35:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-10-24 21:35:26,501 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:35:26,502 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:35:26,502 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:35:26,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:35:26,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1974647027, now seen corresponding path program 1 times [2018-10-24 21:35:26,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:35:26,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:35:26,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:35:26,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:35:26,506 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:35:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:35:26,848 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:35:27,175 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 86 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:35:27,175 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:35:27,176 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:35:27,177 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-10-24 21:35:27,179 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2927], [2929], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3202], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3273], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-24 21:35:27,264 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:35:27,264 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:35:32,415 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:35:32,417 INFO L272 AbstractInterpreter]: Visited 108 different actions 108 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 21:35:32,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:35:32,430 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:35:36,446 INFO L232 lantSequenceWeakener]: Weakened 219 states. On average, predicates are now at 71.67% of their original sizes. [2018-10-24 21:35:36,446 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:35:38,110 INFO L413 sIntCurrentIteration]: We have 239 unified AI predicates [2018-10-24 21:35:38,110 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:35:38,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:35:38,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-10-24 21:35:38,112 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:35:38,112 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-24 21:35:38,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-24 21:35:38,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-24 21:35:38,113 INFO L87 Difference]: Start difference. First operand 13775 states and 20149 transitions. Second operand 11 states. [2018-10-24 21:36:11,655 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown