java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:25:04,595 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:25:04,598 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:25:04,615 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:25:04,615 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:25:04,617 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:25:04,618 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:25:04,620 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:25:04,622 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:25:04,623 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:25:04,624 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:25:04,624 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:25:04,625 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:25:04,626 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:25:04,627 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:25:04,628 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:25:04,629 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:25:04,631 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:25:04,633 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:25:04,637 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:25:04,639 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:25:04,641 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:25:04,646 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 01:25:04,649 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 01:25:04,649 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 01:25:04,650 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 01:25:04,651 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 01:25:04,654 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 01:25:04,657 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 01:25:04,658 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 01:25:04,659 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 01:25:04,659 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-25 01:25:04,663 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 01:25:04,692 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:25:04,694 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:25:04,695 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:25:04,695 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:25:04,695 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:25:04,695 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:25:04,696 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:25:04,696 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:25:04,696 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:25:04,696 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:25:04,696 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:25:04,697 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:25:04,700 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:25:04,700 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:25:04,701 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:25:04,701 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:25:04,703 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:25:04,703 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:25:04,703 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:25:04,703 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:25:04,704 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:25:04,704 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:25:04,704 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:25:04,704 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:25:04,704 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:25:04,705 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:25:04,705 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:25:04,705 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:25:04,706 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:25:04,706 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:25:04,706 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:25:04,706 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:25:04,706 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:25:04,707 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:25:04,707 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:25:04,707 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:25:04,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:25:04,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:25:04,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:25:04,804 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:25:04,805 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:25:04,805 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45_true-unreach-call.c [2018-10-25 01:25:04,871 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b68d02f59/eb5712ac98cb4e009b0aa0c308540810/FLAG058969bd6 [2018-10-25 01:25:05,458 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:25:05,459 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label45_true-unreach-call.c [2018-10-25 01:25:05,475 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b68d02f59/eb5712ac98cb4e009b0aa0c308540810/FLAG058969bd6 [2018-10-25 01:25:05,492 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b68d02f59/eb5712ac98cb4e009b0aa0c308540810 [2018-10-25 01:25:05,506 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:25:05,511 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:25:05,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:25:05,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:25:05,518 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:25:05,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:25:05" (1/1) ... [2018-10-25 01:25:05,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46dcfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:05, skipping insertion in model container [2018-10-25 01:25:05,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:25:05" (1/1) ... [2018-10-25 01:25:05,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:25:05,589 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:25:06,092 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:25:06,097 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:25:06,267 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:25:06,286 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:25:06,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06 WrapperNode [2018-10-25 01:25:06,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:25:06,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:25:06,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:25:06,288 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:25:06,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (1/1) ... [2018-10-25 01:25:06,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (1/1) ... [2018-10-25 01:25:06,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:25:06,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:25:06,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:25:06,523 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:25:06,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (1/1) ... [2018-10-25 01:25:06,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (1/1) ... [2018-10-25 01:25:06,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (1/1) ... [2018-10-25 01:25:06,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (1/1) ... [2018-10-25 01:25:06,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (1/1) ... [2018-10-25 01:25:06,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (1/1) ... [2018-10-25 01:25:06,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (1/1) ... [2018-10-25 01:25:06,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:25:06,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:25:06,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:25:06,636 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:25:06,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:25:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:25:06,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:25:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:25:06,707 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:25:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:25:06,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:25:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:25:06,708 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:25:09,951 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:25:09,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:25:09 BoogieIcfgContainer [2018-10-25 01:25:09,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:25:09,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:25:09,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:25:09,956 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:25:09,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:25:05" (1/3) ... [2018-10-25 01:25:09,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af2ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:25:09, skipping insertion in model container [2018-10-25 01:25:09,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:25:06" (2/3) ... [2018-10-25 01:25:09,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@af2ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:25:09, skipping insertion in model container [2018-10-25 01:25:09,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:25:09" (3/3) ... [2018-10-25 01:25:09,960 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label45_true-unreach-call.c [2018-10-25 01:25:09,971 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:25:09,985 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:25:10,002 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:25:10,036 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:25:10,036 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:25:10,036 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:25:10,036 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:25:10,037 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:25:10,037 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:25:10,037 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:25:10,037 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:25:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-25 01:25:10,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-25 01:25:10,072 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:25:10,073 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] [2018-10-25 01:25:10,076 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:25:10,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:25:10,082 INFO L82 PathProgramCache]: Analyzing trace with hash -2078467607, now seen corresponding path program 1 times [2018-10-25 01:25:10,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:25:10,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:25:10,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:25:10,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:25:10,139 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:25:10,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:25:10,574 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:25:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:25:10,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:25:10,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 01:25:10,612 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:25:10,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:25:10,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:25:10,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:25:10,636 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-25 01:25:12,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:25:12,271 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-25 01:25:12,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:25:12,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-10-25 01:25:12,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:25:12,292 INFO L225 Difference]: With dead ends: 574 [2018-10-25 01:25:12,292 INFO L226 Difference]: Without dead ends: 356 [2018-10-25 01:25:12,300 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:25:12,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-25 01:25:12,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-25 01:25:12,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-25 01:25:12,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 592 transitions. [2018-10-25 01:25:12,370 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 592 transitions. Word has length 45 [2018-10-25 01:25:12,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:25:12,370 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 592 transitions. [2018-10-25 01:25:12,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:25:12,371 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 592 transitions. [2018-10-25 01:25:12,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-25 01:25:12,378 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:25:12,379 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:25:12,379 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:25:12,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:25:12,380 INFO L82 PathProgramCache]: Analyzing trace with hash -2123203616, now seen corresponding path program 1 times [2018-10-25 01:25:12,380 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:25:12,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:25:12,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:25:12,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:25:12,382 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:25:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:25:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:25:12,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:25:12,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:25:12,667 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:25:12,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:25:12,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:25:12,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:25:12,670 INFO L87 Difference]: Start difference. First operand 356 states and 592 transitions. Second operand 6 states. [2018-10-25 01:25:14,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:25:14,865 INFO L93 Difference]: Finished difference Result 1002 states and 1689 transitions. [2018-10-25 01:25:14,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:25:14,871 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-10-25 01:25:14,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:25:14,878 INFO L225 Difference]: With dead ends: 1002 [2018-10-25 01:25:14,878 INFO L226 Difference]: Without dead ends: 652 [2018-10-25 01:25:14,886 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 01:25:14,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2018-10-25 01:25:14,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 640. [2018-10-25 01:25:14,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2018-10-25 01:25:14,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 960 transitions. [2018-10-25 01:25:14,933 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 960 transitions. Word has length 115 [2018-10-25 01:25:14,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:25:14,933 INFO L481 AbstractCegarLoop]: Abstraction has 640 states and 960 transitions. [2018-10-25 01:25:14,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:25:14,934 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 960 transitions. [2018-10-25 01:25:14,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-25 01:25:14,938 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:25:14,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:25:14,939 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:25:14,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:25:14,940 INFO L82 PathProgramCache]: Analyzing trace with hash -597678124, now seen corresponding path program 1 times [2018-10-25 01:25:14,940 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:25:14,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:25:14,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:25:14,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:25:14,941 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:25:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:25:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 21 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:25:15,293 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:25:15,293 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:25:15,294 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 126 with the following transitions: [2018-10-25 01:25:15,296 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-25 01:25:15,340 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:25:15,340 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:25:16,214 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:25:16,215 INFO L272 AbstractInterpreter]: Visited 88 different actions 168 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-25 01:25:16,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:25:16,261 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:25:16,261 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:25:16,261 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:25:16,276 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:25:16,276 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:25:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:25:16,373 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:25:18,825 WARN L179 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 35 [2018-10-25 01:25:19,109 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:25:19,109 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:25:19,472 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-25 01:25:20,217 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 30 [2018-10-25 01:25:20,223 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:20,418 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:20,480 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:20,642 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:20,723 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:20,795 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:20,863 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:20,958 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,038 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,205 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,282 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,332 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,390 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,450 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,558 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,592 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,773 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,812 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,865 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,932 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:21,967 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,005 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,048 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,139 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,175 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,212 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,244 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,278 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,311 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,347 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,394 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,525 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,623 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,657 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,705 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,749 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,782 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,864 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,906 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:22,957 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:23,034 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:23,067 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:23,139 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:23,176 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:23,426 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:23,679 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:23,934 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,188 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,268 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,363 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,397 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,434 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,468 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,593 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,627 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,662 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,695 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,826 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,870 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,916 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,951 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:24,985 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,021 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,073 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,128 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,165 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,198 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,230 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,278 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,310 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,345 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,380 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:25:25,518 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:25:25,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-25 01:25:25,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-10-25 01:25:25,540 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:25:25,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:25:25,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:25:25,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-10-25 01:25:25,541 INFO L87 Difference]: Start difference. First operand 640 states and 960 transitions. Second operand 6 states. [2018-10-25 01:25:41,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:25:41,649 INFO L93 Difference]: Finished difference Result 2276 states and 3523 transitions. [2018-10-25 01:25:41,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:25:41,649 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-10-25 01:25:41,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:25:41,668 INFO L225 Difference]: With dead ends: 2276 [2018-10-25 01:25:41,668 INFO L226 Difference]: Without dead ends: 1642 [2018-10-25 01:25:41,674 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 174 SyntacticMatches, 73 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 621 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-10-25 01:25:41,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2018-10-25 01:25:41,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1632. [2018-10-25 01:25:41,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1632 states. [2018-10-25 01:25:41,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2331 transitions. [2018-10-25 01:25:41,778 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2331 transitions. Word has length 125 [2018-10-25 01:25:41,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:25:41,779 INFO L481 AbstractCegarLoop]: Abstraction has 1632 states and 2331 transitions. [2018-10-25 01:25:41,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:25:41,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2331 transitions. [2018-10-25 01:25:41,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-25 01:25:41,796 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:25:41,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:25:41,799 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:25:41,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:25:41,800 INFO L82 PathProgramCache]: Analyzing trace with hash 786349999, now seen corresponding path program 1 times [2018-10-25 01:25:41,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:25:41,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:25:41,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:25:41,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:25:41,805 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:25:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:25:42,160 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:25:42,507 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-25 01:25:42,507 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:25:42,507 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:25:42,508 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-10-25 01:25:42,508 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [730], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-25 01:25:42,522 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:25:42,523 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:25:42,729 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:25:42,730 INFO L272 AbstractInterpreter]: Visited 133 different actions 133 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-25 01:25:42,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:25:42,756 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:25:43,183 INFO L232 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 73.34% of their original sizes. [2018-10-25 01:25:43,184 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:25:43,432 INFO L413 sIntCurrentIteration]: We have 173 unified AI predicates [2018-10-25 01:25:43,433 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:25:43,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:25:43,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2018-10-25 01:25:43,434 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:25:43,435 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:25:43,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:25:43,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:25:43,435 INFO L87 Difference]: Start difference. First operand 1632 states and 2331 transitions. Second operand 6 states. [2018-10-25 01:26:24,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:26:24,123 INFO L93 Difference]: Finished difference Result 3404 states and 4891 transitions. [2018-10-25 01:26:24,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:26:24,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-10-25 01:26:24,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:26:24,134 INFO L225 Difference]: With dead ends: 3404 [2018-10-25 01:26:24,134 INFO L226 Difference]: Without dead ends: 1778 [2018-10-25 01:26:24,141 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 174 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:26:24,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2018-10-25 01:26:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1776. [2018-10-25 01:26:24,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1776 states. [2018-10-25 01:26:24,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2484 transitions. [2018-10-25 01:26:24,190 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2484 transitions. Word has length 174 [2018-10-25 01:26:24,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:26:24,190 INFO L481 AbstractCegarLoop]: Abstraction has 1776 states and 2484 transitions. [2018-10-25 01:26:24,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:26:24,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2484 transitions. [2018-10-25 01:26:24,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-25 01:26:24,195 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:26:24,195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:26:24,195 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:26:24,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:26:24,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1611504344, now seen corresponding path program 1 times [2018-10-25 01:26:24,196 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:26:24,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:26:24,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:26:24,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:26:24,197 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:26:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:26:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-25 01:26:24,427 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:26:24,427 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:26:24,428 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-10-25 01:26:24,428 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [261], [263], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [766], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-25 01:26:24,433 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:26:24,433 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:26:24,705 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:26:24,706 INFO L272 AbstractInterpreter]: Visited 145 different actions 284 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-25 01:26:24,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:26:24,744 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:26:25,094 INFO L232 lantSequenceWeakener]: Weakened 180 states. On average, predicates are now at 73.4% of their original sizes. [2018-10-25 01:26:25,094 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:26:25,429 INFO L413 sIntCurrentIteration]: We have 182 unified AI predicates [2018-10-25 01:26:25,429 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:26:25,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:26:25,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-10-25 01:26:25,429 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:26:25,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-25 01:26:25,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-25 01:26:25,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-25 01:26:25,431 INFO L87 Difference]: Start difference. First operand 1776 states and 2484 transitions. Second operand 10 states. [2018-10-25 01:27:18,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-25 01:27:18,073 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-25 01:27:18,077 INFO L168 Benchmark]: Toolchain (without parser) took 132570.41 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 673.9 MB. Max. memory is 7.1 GB. [2018-10-25 01:27:18,079 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:27:18,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 775.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-25 01:27:18,080 INFO L168 Benchmark]: Boogie Procedure Inliner took 231.90 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -805.1 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2018-10-25 01:27:18,081 INFO L168 Benchmark]: Boogie Preprocessor took 109.63 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:27:18,082 INFO L168 Benchmark]: RCFGBuilder took 3319.36 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 7.1 GB. [2018-10-25 01:27:18,082 INFO L168 Benchmark]: TraceAbstraction took 128123.87 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 609.9 MB. Max. memory is 7.1 GB. [2018-10-25 01:27:18,090 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 775.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 231.90 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -805.1 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.63 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3319.36 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 128123.87 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 609.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...