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/Problem11_label54_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:34:13,441 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:34:13,443 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:34:13,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:34:13,460 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:34:13,461 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:34:13,463 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:34:13,465 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:34:13,466 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:34:13,467 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:34:13,468 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:34:13,468 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:34:13,469 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:34:13,470 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:34:13,471 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:34:13,472 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:34:13,473 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:34:13,475 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:34:13,477 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:34:13,478 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:34:13,480 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:34:13,481 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:34:13,483 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 01:34:13,484 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 01:34:13,484 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 01:34:13,485 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 01:34:13,486 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 01:34:13,487 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 01:34:13,488 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 01:34:13,489 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 01:34:13,489 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 01:34:13,490 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-25 01:34:13,492 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 01:34:13,507 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:34:13,508 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:34:13,508 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:34:13,509 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:34:13,509 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:34:13,509 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:34:13,509 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:34:13,509 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:34:13,510 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:34:13,510 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:34:13,510 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:34:13,510 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:34:13,510 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:34:13,511 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:34:13,511 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:34:13,511 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:34:13,512 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:34:13,512 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:34:13,512 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:34:13,512 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:34:13,512 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:34:13,513 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:34:13,513 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:34:13,513 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:34:13,513 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:34:13,514 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:34:13,514 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:34:13,514 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:34:13,514 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:34:13,514 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:34:13,515 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:34:13,515 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:34:13,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:34:13,515 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:34:13,515 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:34:13,516 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:34:13,562 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:34:13,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:34:13,585 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:34:13,586 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:34:13,587 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:34:13,587 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label54_true-unreach-call.c [2018-10-25 01:34:13,644 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f5321553b/e2163ec21f3541a2a9095bbd4ef7a493/FLAG43edf0f08 [2018-10-25 01:34:14,261 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:34:14,264 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label54_true-unreach-call.c [2018-10-25 01:34:14,281 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f5321553b/e2163ec21f3541a2a9095bbd4ef7a493/FLAG43edf0f08 [2018-10-25 01:34:14,304 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/f5321553b/e2163ec21f3541a2a9095bbd4ef7a493 [2018-10-25 01:34:14,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:34:14,322 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:34:14,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:34:14,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:34:14,331 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:34:14,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:34:14" (1/1) ... [2018-10-25 01:34:14,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77894245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:14, skipping insertion in model container [2018-10-25 01:34:14,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:34:14" (1/1) ... [2018-10-25 01:34:14,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:34:14,421 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:34:15,011 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:34:15,016 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:34:15,228 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:34:15,247 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:34:15,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15 WrapperNode [2018-10-25 01:34:15,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:34:15,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:34:15,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:34:15,249 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:34:15,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (1/1) ... [2018-10-25 01:34:15,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (1/1) ... [2018-10-25 01:34:15,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:34:15,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:34:15,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:34:15,510 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:34:15,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (1/1) ... [2018-10-25 01:34:15,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (1/1) ... [2018-10-25 01:34:15,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (1/1) ... [2018-10-25 01:34:15,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (1/1) ... [2018-10-25 01:34:15,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (1/1) ... [2018-10-25 01:34:15,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (1/1) ... [2018-10-25 01:34:15,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (1/1) ... [2018-10-25 01:34:15,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:34:15,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:34:15,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:34:15,644 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:34:15,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (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 01:34:15,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:34:15,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:34:15,710 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:34:15,710 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:34:15,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:34:15,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:34:15,712 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:34:15,712 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:34:20,562 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:34:20,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:34:20 BoogieIcfgContainer [2018-10-25 01:34:20,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:34:20,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:34:20,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:34:20,568 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:34:20,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:34:14" (1/3) ... [2018-10-25 01:34:20,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5b8714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:34:20, skipping insertion in model container [2018-10-25 01:34:20,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:15" (2/3) ... [2018-10-25 01:34:20,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f5b8714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:34:20, skipping insertion in model container [2018-10-25 01:34:20,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:34:20" (3/3) ... [2018-10-25 01:34:20,577 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label54_true-unreach-call.c [2018-10-25 01:34:20,588 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:34:20,598 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:34:20,616 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:34:20,659 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:34:20,660 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:34:20,660 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:34:20,661 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:34:20,661 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:34:20,661 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:34:20,661 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:34:20,661 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:34:20,702 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-25 01:34:20,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-25 01:34:20,712 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:34:20,713 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] [2018-10-25 01:34:20,715 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:34:20,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:34:20,721 INFO L82 PathProgramCache]: Analyzing trace with hash -639357604, now seen corresponding path program 1 times [2018-10-25 01:34:20,724 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:34:20,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:20,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:34:20,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:20,773 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:34:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:34:21,229 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 01:34:21,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:34:21,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:34:21,232 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:34:21,239 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:34:21,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:34:21,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:34:21,260 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-25 01:34:24,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:34:24,911 INFO L93 Difference]: Finished difference Result 998 states and 1780 transitions. [2018-10-25 01:34:24,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:34:24,913 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-10-25 01:34:24,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:34:24,942 INFO L225 Difference]: With dead ends: 998 [2018-10-25 01:34:24,942 INFO L226 Difference]: Without dead ends: 699 [2018-10-25 01:34:24,953 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:34:24,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2018-10-25 01:34:25,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 693. [2018-10-25 01:34:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2018-10-25 01:34:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1109 transitions. [2018-10-25 01:34:25,051 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1109 transitions. Word has length 44 [2018-10-25 01:34:25,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:34:25,052 INFO L481 AbstractCegarLoop]: Abstraction has 693 states and 1109 transitions. [2018-10-25 01:34:25,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:34:25,053 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1109 transitions. [2018-10-25 01:34:25,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-25 01:34:25,060 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:34:25,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:34:25,061 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:34:25,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:34:25,061 INFO L82 PathProgramCache]: Analyzing trace with hash 731087552, now seen corresponding path program 1 times [2018-10-25 01:34:25,061 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:34:25,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:25,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:34:25,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:25,063 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:34:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:34:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:34:25,599 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:34:25,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-25 01:34:25,600 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:34:25,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-25 01:34:25,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-25 01:34:25,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:34:25,603 INFO L87 Difference]: Start difference. First operand 693 states and 1109 transitions. Second operand 7 states. [2018-10-25 01:34:32,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:34:32,734 INFO L93 Difference]: Finished difference Result 2550 states and 4242 transitions. [2018-10-25 01:34:32,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 01:34:32,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2018-10-25 01:34:32,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:34:32,747 INFO L225 Difference]: With dead ends: 2550 [2018-10-25 01:34:32,748 INFO L226 Difference]: Without dead ends: 1863 [2018-10-25 01:34:32,754 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-25 01:34:32,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2018-10-25 01:34:32,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1435. [2018-10-25 01:34:32,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1435 states. [2018-10-25 01:34:32,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 2153 transitions. [2018-10-25 01:34:32,846 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 2153 transitions. Word has length 118 [2018-10-25 01:34:32,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:34:32,846 INFO L481 AbstractCegarLoop]: Abstraction has 1435 states and 2153 transitions. [2018-10-25 01:34:32,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-25 01:34:32,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 2153 transitions. [2018-10-25 01:34:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2018-10-25 01:34:32,854 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:34:32,854 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, 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] [2018-10-25 01:34:32,855 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:34:32,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:34:32,855 INFO L82 PathProgramCache]: Analyzing trace with hash 162053839, now seen corresponding path program 1 times [2018-10-25 01:34:32,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:34:32,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:32,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:34:32,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:32,857 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:34:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:34:33,158 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 74 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 01:34:33,159 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:34:33,159 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:34:33,160 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 192 with the following transitions: [2018-10-25 01:34:33,162 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], [253], [255], [258], [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], [506], [507], [510], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:34:33,213 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:34:33,214 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:34:34,171 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:34:34,173 INFO L272 AbstractInterpreter]: Visited 79 different actions 79 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-25 01:34:34,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:34:34,214 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:34:35,481 INFO L232 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 73.51% of their original sizes. [2018-10-25 01:34:35,482 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:34:35,726 INFO L413 sIntCurrentIteration]: We have 190 unified AI predicates [2018-10-25 01:34:35,726 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:34:35,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:34:35,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-25 01:34:35,727 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:34:35,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:34:35,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:34:35,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:34:35,732 INFO L87 Difference]: Start difference. First operand 1435 states and 2153 transitions. Second operand 6 states. [2018-10-25 01:35:56,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:35:56,869 INFO L93 Difference]: Finished difference Result 3056 states and 4512 transitions. [2018-10-25 01:35:56,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:35:56,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 191 [2018-10-25 01:35:56,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:35:56,879 INFO L225 Difference]: With dead ends: 3056 [2018-10-25 01:35:56,879 INFO L226 Difference]: Without dead ends: 1627 [2018-10-25 01:35:56,883 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 191 GetRequests, 186 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 01:35:56,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2018-10-25 01:35:56,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1625. [2018-10-25 01:35:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1625 states. [2018-10-25 01:35:56,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1625 states to 1625 states and 2352 transitions. [2018-10-25 01:35:56,928 INFO L78 Accepts]: Start accepts. Automaton has 1625 states and 2352 transitions. Word has length 191 [2018-10-25 01:35:56,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:35:56,928 INFO L481 AbstractCegarLoop]: Abstraction has 1625 states and 2352 transitions. [2018-10-25 01:35:56,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:35:56,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1625 states and 2352 transitions. [2018-10-25 01:35:56,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-25 01:35:56,932 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:35:56,933 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:35:56,933 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:35:56,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:56,934 INFO L82 PathProgramCache]: Analyzing trace with hash -875818686, now seen corresponding path program 1 times [2018-10-25 01:35:56,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:35:56,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:56,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:35:56,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:56,936 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:35:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:35:57,291 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-25 01:35:57,291 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:35:57,291 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:35:57,292 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-10-25 01:35:57,292 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], [253], [255], [258], [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], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:35:57,300 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:35:57,300 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:35:57,565 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:35:57,566 INFO L272 AbstractInterpreter]: Visited 155 different actions 304 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-25 01:35:57,605 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:57,605 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:35:58,259 INFO L232 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 76.75% of their original sizes. [2018-10-25 01:35:58,259 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:35:58,961 INFO L413 sIntCurrentIteration]: We have 191 unified AI predicates [2018-10-25 01:35:58,961 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:35:58,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:35:58,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 17 [2018-10-25 01:35:58,962 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:35:58,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-25 01:35:58,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-25 01:35:58,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-10-25 01:35:58,967 INFO L87 Difference]: Start difference. First operand 1625 states and 2352 transitions. Second operand 14 states. [2018-10-25 01:36:20,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-25 01:36:20,069 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: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.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 01:36:20,075 INFO L168 Benchmark]: Toolchain (without parser) took 125756.07 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 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 966.7 MB. Max. memory is 7.1 GB. [2018-10-25 01:36:20,077 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:36:20,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 925.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-25 01:36:20,085 INFO L168 Benchmark]: Boogie Procedure Inliner took 260.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -843.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-25 01:36:20,086 INFO L168 Benchmark]: Boogie Preprocessor took 132.89 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:36:20,086 INFO L168 Benchmark]: RCFGBuilder took 4920.32 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 7.1 GB. [2018-10-25 01:36:20,087 INFO L168 Benchmark]: TraceAbstraction took 119509.62 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 815.5 MB. Max. memory is 7.1 GB. [2018-10-25 01:36:20,095 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 925.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 260.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -843.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.89 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4920.32 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 188.9 MB). Peak memory consumption was 188.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 119509.62 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.0 GB in the end (delta: -1.0 GB). Peak memory consumption was 815.5 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...