java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:00:38,470 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:00:38,472 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:00:38,484 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:00:38,485 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:00:38,486 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:00:38,487 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:00:38,490 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:00:38,492 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:00:38,495 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:00:38,496 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:00:38,496 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:00:38,499 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:00:38,502 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:00:38,508 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:00:38,509 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:00:38,513 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:00:38,515 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:00:38,520 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:00:38,523 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:00:38,526 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:00:38,527 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:00:38,530 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 21:00:38,547 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:00:38,581 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:00:38,581 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:00:38,582 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:00:38,583 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:00:38,585 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:00:38,585 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:00:38,586 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:00:38,586 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:00:38,586 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:00:38,586 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:00:38,586 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:00:38,587 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:00:38,587 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:00:38,588 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:00:38,589 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:00:38,589 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:00:38,590 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:00:38,590 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:00:38,590 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:00:38,590 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:00:38,591 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:00:38,591 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:00:38,591 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:00:38,591 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:00:38,591 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:00:38,592 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:00:38,592 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:00:38,592 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:00:38,592 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:00:38,592 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:00:38,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:00:38,593 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:00:38,593 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:00:38,593 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:00:38,663 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:00:38,677 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:00:38,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:00:38,683 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:00:38,684 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:00:38,685 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36_true-unreach-call.c [2018-10-24 21:00:38,747 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/58b405ba4/6767ea1173034af0964618f40db3fec7/FLAG61e8166a9 [2018-10-24 21:00:39,319 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:00:39,323 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label36_true-unreach-call.c [2018-10-24 21:00:39,344 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/58b405ba4/6767ea1173034af0964618f40db3fec7/FLAG61e8166a9 [2018-10-24 21:00:39,365 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/58b405ba4/6767ea1173034af0964618f40db3fec7 [2018-10-24 21:00:39,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:00:39,382 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:00:39,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:00:39,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:00:39,388 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:00:39,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:00:39" (1/1) ... [2018-10-24 21:00:39,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e5b32d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:39, skipping insertion in model container [2018-10-24 21:00:39,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:00:39" (1/1) ... [2018-10-24 21:00:39,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:00:39,475 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:00:39,975 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:00:39,980 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:00:40,111 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:00:40,130 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:00:40,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40 WrapperNode [2018-10-24 21:00:40,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:00:40,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:00:40,132 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:00:40,133 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:00:40,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (1/1) ... [2018-10-24 21:00:40,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (1/1) ... [2018-10-24 21:00:40,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:00:40,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:00:40,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:00:40,342 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:00:40,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (1/1) ... [2018-10-24 21:00:40,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (1/1) ... [2018-10-24 21:00:40,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (1/1) ... [2018-10-24 21:00:40,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (1/1) ... [2018-10-24 21:00:40,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (1/1) ... [2018-10-24 21:00:40,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (1/1) ... [2018-10-24 21:00:40,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (1/1) ... [2018-10-24 21:00:40,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:00:40,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:00:40,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:00:40,436 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:00:40,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:00:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:00:40,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:00:40,523 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:00:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:00:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:00:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:00:40,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:00:40,524 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:00:44,008 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:00:44,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:00:44 BoogieIcfgContainer [2018-10-24 21:00:44,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:00:44,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:00:44,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:00:44,018 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:00:44,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:00:39" (1/3) ... [2018-10-24 21:00:44,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1655a432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:00:44, skipping insertion in model container [2018-10-24 21:00:44,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:00:40" (2/3) ... [2018-10-24 21:00:44,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1655a432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:00:44, skipping insertion in model container [2018-10-24 21:00:44,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:00:44" (3/3) ... [2018-10-24 21:00:44,026 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label36_true-unreach-call.c [2018-10-24 21:00:44,038 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:00:44,050 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:00:44,068 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:00:44,115 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:00:44,115 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:00:44,115 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:00:44,115 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:00:44,116 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:00:44,116 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:00:44,116 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:00:44,116 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:00:44,143 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 21:00:44,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-24 21:00:44,151 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:00:44,153 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:00:44,155 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:00:44,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:00:44,161 INFO L82 PathProgramCache]: Analyzing trace with hash -7982076, now seen corresponding path program 1 times [2018-10-24 21:00:44,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:00:44,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:44,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:00:44,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:44,215 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:00:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:00:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:00:44,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:00:44,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:00:44,533 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:00:44,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:00:44,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:00:44,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:00:44,560 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 21:00:46,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:00:46,437 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 21:00:46,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:00:46,440 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-10-24 21:00:46,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:00:46,472 INFO L225 Difference]: With dead ends: 574 [2018-10-24 21:00:46,475 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 21:00:46,485 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:00:46,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 21:00:46,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 21:00:46,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 21:00:46,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-10-24 21:00:46,566 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 46 [2018-10-24 21:00:46,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:00:46,566 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-10-24 21:00:46,567 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:00:46,567 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-10-24 21:00:46,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-10-24 21:00:46,575 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:00:46,575 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:00:46,576 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:00:46,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:00:46,577 INFO L82 PathProgramCache]: Analyzing trace with hash -443611109, now seen corresponding path program 1 times [2018-10-24 21:00:46,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:00:46,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:46,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:00:46,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:46,579 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:00:46,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:00:46,905 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:00:46,906 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:00:46,906 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:00:46,906 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:00:46,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:00:46,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:00:46,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:00:46,910 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 5 states. [2018-10-24 21:00:50,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:00:50,550 INFO L93 Difference]: Finished difference Result 1290 states and 2315 transitions. [2018-10-24 21:00:50,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:00:50,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-10-24 21:00:50,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:00:50,558 INFO L225 Difference]: With dead ends: 1290 [2018-10-24 21:00:50,558 INFO L226 Difference]: Without dead ends: 940 [2018-10-24 21:00:50,563 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:00:50,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 940 states. [2018-10-24 21:00:50,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 940 to 925. [2018-10-24 21:00:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2018-10-24 21:00:50,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1443 transitions. [2018-10-24 21:00:50,633 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1443 transitions. Word has length 129 [2018-10-24 21:00:50,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:00:50,633 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1443 transitions. [2018-10-24 21:00:50,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:00:50,634 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1443 transitions. [2018-10-24 21:00:50,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-24 21:00:50,640 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:00:50,640 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:00:50,640 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:00:50,641 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:00:50,641 INFO L82 PathProgramCache]: Analyzing trace with hash -205231877, now seen corresponding path program 1 times [2018-10-24 21:00:50,641 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:00:50,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:50,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:00:50,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:50,643 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:00:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:00:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:00:51,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:00:51,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:00:51,063 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:00:51,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:00:51,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:00:51,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:00:51,065 INFO L87 Difference]: Start difference. First operand 925 states and 1443 transitions. Second operand 6 states. [2018-10-24 21:00:54,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:00:54,964 INFO L93 Difference]: Finished difference Result 2535 states and 4089 transitions. [2018-10-24 21:00:54,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:00:54,970 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-10-24 21:00:54,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:00:54,991 INFO L225 Difference]: With dead ends: 2535 [2018-10-24 21:00:54,992 INFO L226 Difference]: Without dead ends: 1616 [2018-10-24 21:00:54,999 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:00:55,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2018-10-24 21:00:55,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1585. [2018-10-24 21:00:55,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1585 states. [2018-10-24 21:00:55,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1585 states to 1585 states and 2320 transitions. [2018-10-24 21:00:55,066 INFO L78 Accepts]: Start accepts. Automaton has 1585 states and 2320 transitions. Word has length 145 [2018-10-24 21:00:55,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:00:55,066 INFO L481 AbstractCegarLoop]: Abstraction has 1585 states and 2320 transitions. [2018-10-24 21:00:55,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:00:55,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1585 states and 2320 transitions. [2018-10-24 21:00:55,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-10-24 21:00:55,077 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:00:55,079 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:00:55,079 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:00:55,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:00:55,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1849309771, now seen corresponding path program 1 times [2018-10-24 21:00:55,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:00:55,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:55,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:00:55,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:55,081 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:00:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:00:55,412 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:00:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:00:55,796 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:00:55,796 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:00:55,797 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:00:55,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:00:55,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:00:55,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:00:55,798 INFO L87 Difference]: Start difference. First operand 1585 states and 2320 transitions. Second operand 6 states. [2018-10-24 21:00:57,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:00:57,321 INFO L93 Difference]: Finished difference Result 3506 states and 5314 transitions. [2018-10-24 21:00:57,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:00:57,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2018-10-24 21:00:57,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:00:57,343 INFO L225 Difference]: With dead ends: 3506 [2018-10-24 21:00:57,343 INFO L226 Difference]: Without dead ends: 1927 [2018-10-24 21:00:57,350 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:00:57,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1927 states. [2018-10-24 21:00:57,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1927 to 1888. [2018-10-24 21:00:57,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1888 states. [2018-10-24 21:00:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1888 states to 1888 states and 2674 transitions. [2018-10-24 21:00:57,424 INFO L78 Accepts]: Start accepts. Automaton has 1888 states and 2674 transitions. Word has length 169 [2018-10-24 21:00:57,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:00:57,424 INFO L481 AbstractCegarLoop]: Abstraction has 1888 states and 2674 transitions. [2018-10-24 21:00:57,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:00:57,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1888 states and 2674 transitions. [2018-10-24 21:00:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-10-24 21:00:57,432 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:00:57,432 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:00:57,433 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:00:57,433 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:00:57,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1363120665, now seen corresponding path program 1 times [2018-10-24 21:00:57,433 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:00:57,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:57,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:00:57,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:00:57,435 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:00:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:00:58,139 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:00:58,139 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:00:58,139 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:00:58,140 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-10-24 21:00:58,142 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], [265], [269], [271], [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], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:00:58,213 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:00:58,213 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:01:00,876 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:01:13,556 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:01:13,558 INFO L272 AbstractInterpreter]: Visited 91 different actions 516 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:01:13,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:01:13,571 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:01:16,794 INFO L232 lantSequenceWeakener]: Weakened 22 states. On average, predicates are now at 77.69% of their original sizes. [2018-10-24 21:01:16,795 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:01:43,907 INFO L413 sIntCurrentIteration]: We have 208 unified AI predicates [2018-10-24 21:01:43,907 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:01:43,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:01:43,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [12] total 28 [2018-10-24 21:01:43,909 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:01:43,910 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-24 21:01:43,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-24 21:01:43,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2018-10-24 21:01:43,911 INFO L87 Difference]: Start difference. First operand 1888 states and 2674 transitions. Second operand 18 states. Received shutdown request... [2018-10-24 21:04:42,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-24 21:04:42,074 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:04:42,079 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:04:42,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:04:42 BoogieIcfgContainer [2018-10-24 21:04:42,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:04:42,081 INFO L168 Benchmark]: Toolchain (without parser) took 242701.88 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.7 GB). Peak memory consumption was 959.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:04:42,082 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-24 21:04:42,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.11 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:04:42,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 209.54 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -839.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2018-10-24 21:04:42,085 INFO L168 Benchmark]: Boogie Preprocessor took 94.33 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. [2018-10-24 21:04:42,085 INFO L168 Benchmark]: RCFGBuilder took 3576.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 130.5 MB). Peak memory consumption was 130.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:04:42,086 INFO L168 Benchmark]: TraceAbstraction took 238066.29 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 884.1 MB. Max. memory is 7.1 GB. [2018-10-24 21:04:42,093 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.11 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 209.54 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -839.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.33 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 3576.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 130.5 MB). Peak memory consumption was 130.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238066.29 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 884.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 121). Cancelled while BasicCegarLoop was constructing difference of abstraction (1888states) and FLOYD_HOARE automaton (currently 21 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (2224 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 237.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 189.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 453 SDtfs, 3768 SDslu, 451 SDs, 0 SdLazy, 4962 SolverSat, 1066 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 99.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 247 GetRequests, 173 SyntacticMatches, 32 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 28.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1888occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.4s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9943300585284283 AbsIntWeakeningRatio, 0.125 AbsIntAvgWeakeningVarsNumRemoved, 209.16346153846155 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 85 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 698 NumberOfCodeBlocks, 698 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 693 ConstructedInterpolants, 0 QuantifiedInterpolants, 838478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 273/275 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown