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/Problem17_label46_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:48:01,433 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:48:01,437 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:48:01,450 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:48:01,450 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:48:01,451 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:48:01,453 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:48:01,455 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:48:01,456 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:48:01,457 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:48:01,458 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:48:01,458 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:48:01,459 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:48:01,460 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:48:01,461 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:48:01,462 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:48:01,463 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:48:01,465 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:48:01,467 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:48:01,469 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:48:01,470 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:48:01,471 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:48:01,474 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 23:48:01,474 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 23:48:01,475 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 23:48:01,476 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 23:48:01,480 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 23:48:01,481 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 23:48:01,482 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 23:48:01,487 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 23:48:01,487 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 23:48:01,488 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 23:48:01,490 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 [2018-10-24 23:48:01,510 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:48:01,510 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:48:01,513 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:48:01,514 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:48:01,514 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:48:01,514 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:48:01,514 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:48:01,514 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:48:01,515 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:48:01,519 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:48:01,519 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:48:01,519 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:48:01,519 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:48:01,520 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:48:01,520 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:48:01,521 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:48:01,521 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:48:01,521 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:48:01,521 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:48:01,521 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:48:01,522 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:48:01,522 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:48:01,522 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:48:01,522 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:48:01,522 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:48:01,523 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:48:01,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:48:01,523 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:48:01,523 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:48:01,523 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:48:01,524 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:48:01,526 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:48:01,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:48:01,526 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:48:01,526 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:48:01,526 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:48:01,583 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:48:01,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:48:01,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:48:01,602 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:48:01,602 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:48:01,603 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label46_false-unreach-call.c [2018-10-24 23:48:01,658 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5d6e6cf96/7c59f9d9335a442e9d8d41541fb6ce9c/FLAG9dafb3eac [2018-10-24 23:48:02,433 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:48:02,434 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label46_false-unreach-call.c [2018-10-24 23:48:02,460 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5d6e6cf96/7c59f9d9335a442e9d8d41541fb6ce9c/FLAG9dafb3eac [2018-10-24 23:48:02,477 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5d6e6cf96/7c59f9d9335a442e9d8d41541fb6ce9c [2018-10-24 23:48:02,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:48:02,491 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:48:02,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:48:02,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:48:02,499 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:48:02,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:48:02" (1/1) ... [2018-10-24 23:48:02,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a8effd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:02, skipping insertion in model container [2018-10-24 23:48:02,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:48:02" (1/1) ... [2018-10-24 23:48:02,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:48:02,648 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:48:03,584 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:48:03,591 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:48:04,002 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:48:04,024 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:48:04,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04 WrapperNode [2018-10-24 23:48:04,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:48:04,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:48:04,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:48:04,026 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:48:04,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (1/1) ... [2018-10-24 23:48:04,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (1/1) ... [2018-10-24 23:48:04,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:48:04,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:48:04,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:48:04,514 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:48:04,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (1/1) ... [2018-10-24 23:48:04,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (1/1) ... [2018-10-24 23:48:04,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (1/1) ... [2018-10-24 23:48:04,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (1/1) ... [2018-10-24 23:48:04,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (1/1) ... [2018-10-24 23:48:04,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (1/1) ... [2018-10-24 23:48:04,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (1/1) ... [2018-10-24 23:48:04,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:48:04,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:48:04,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:48:04,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:48:04,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (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 23:48:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:48:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:48:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:48:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:48:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:48:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:48:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:48:04,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:48:04,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:48:04,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:48:19,592 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:48:19,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:48:19 BoogieIcfgContainer [2018-10-24 23:48:19,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:48:19,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:48:19,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:48:19,598 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:48:19,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:48:02" (1/3) ... [2018-10-24 23:48:19,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d97badc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:48:19, skipping insertion in model container [2018-10-24 23:48:19,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:48:04" (2/3) ... [2018-10-24 23:48:19,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d97badc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:48:19, skipping insertion in model container [2018-10-24 23:48:19,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:48:19" (3/3) ... [2018-10-24 23:48:19,602 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label46_false-unreach-call.c [2018-10-24 23:48:19,613 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:48:19,622 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:48:19,641 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:48:19,685 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:48:19,685 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:48:19,686 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:48:19,686 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:48:19,686 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:48:19,686 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:48:19,686 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:48:19,686 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:48:19,725 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 23:48:19,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-24 23:48:19,732 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:48:19,734 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:48:19,738 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:48:19,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:48:19,746 INFO L82 PathProgramCache]: Analyzing trace with hash -343464482, now seen corresponding path program 1 times [2018-10-24 23:48:19,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:48:19,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:48:19,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:48:19,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:48:19,797 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:48:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:48:20,159 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 23:48:20,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:48:20,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:48:20,163 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:48:20,169 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:48:20,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:48:20,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:48:20,188 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 23:48:32,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:48:32,970 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-10-24 23:48:32,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:48:32,976 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-10-24 23:48:32,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:48:33,012 INFO L225 Difference]: With dead ends: 2162 [2018-10-24 23:48:33,012 INFO L226 Difference]: Without dead ends: 1552 [2018-10-24 23:48:33,023 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 [2018-10-24 23:48:33,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-10-24 23:48:33,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-10-24 23:48:33,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-10-24 23:48:33,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-10-24 23:48:33,163 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 17 [2018-10-24 23:48:33,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:48:33,163 INFO L481 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-10-24 23:48:33,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:48:33,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-10-24 23:48:33,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-10-24 23:48:33,169 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:48:33,170 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:48:33,170 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:48:33,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:48:33,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1337381359, now seen corresponding path program 1 times [2018-10-24 23:48:33,171 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:48:33,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:48:33,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:48:33,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:48:33,172 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:48:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:48:33,565 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:48:33,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:48:33,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:48:33,565 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:48:33,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:48:33,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:48:33,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:48:33,569 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-10-24 23:48:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:48:55,427 INFO L93 Difference]: Finished difference Result 5787 states and 10682 transitions. [2018-10-24 23:48:55,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:48:55,428 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 96 [2018-10-24 23:48:55,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:48:55,462 INFO L225 Difference]: With dead ends: 5787 [2018-10-24 23:48:55,462 INFO L226 Difference]: Without dead ends: 4268 [2018-10-24 23:48:55,482 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 23:48:55,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4268 states. [2018-10-24 23:48:55,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4268 to 4242. [2018-10-24 23:48:55,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4242 states. [2018-10-24 23:48:55,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4242 states to 4242 states and 6364 transitions. [2018-10-24 23:48:55,620 INFO L78 Accepts]: Start accepts. Automaton has 4242 states and 6364 transitions. Word has length 96 [2018-10-24 23:48:55,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:48:55,621 INFO L481 AbstractCegarLoop]: Abstraction has 4242 states and 6364 transitions. [2018-10-24 23:48:55,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:48:55,621 INFO L276 IsEmpty]: Start isEmpty. Operand 4242 states and 6364 transitions. [2018-10-24 23:48:55,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-10-24 23:48:55,624 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:48:55,625 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:48:55,625 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:48:55,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:48:55,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1716529983, now seen corresponding path program 1 times [2018-10-24 23:48:55,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:48:55,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:48:55,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:48:55,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:48:55,627 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:48:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:48:55,814 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:48:55,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:48:55,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:48:55,814 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:48:55,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:48:55,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:48:55,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:48:55,816 INFO L87 Difference]: Start difference. First operand 4242 states and 6364 transitions. Second operand 6 states. [2018-10-24 23:49:01,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:49:01,896 INFO L93 Difference]: Finished difference Result 12710 states and 20712 transitions. [2018-10-24 23:49:01,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:49:01,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2018-10-24 23:49:01,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:49:01,966 INFO L225 Difference]: With dead ends: 12710 [2018-10-24 23:49:01,967 INFO L226 Difference]: Without dead ends: 8474 [2018-10-24 23:49:01,991 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:49:01,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8474 states. [2018-10-24 23:49:02,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 8389. [2018-10-24 23:49:02,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8389 states. [2018-10-24 23:49:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8389 states to 8389 states and 12583 transitions. [2018-10-24 23:49:02,301 INFO L78 Accepts]: Start accepts. Automaton has 8389 states and 12583 transitions. Word has length 97 [2018-10-24 23:49:02,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:49:02,302 INFO L481 AbstractCegarLoop]: Abstraction has 8389 states and 12583 transitions. [2018-10-24 23:49:02,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:49:02,302 INFO L276 IsEmpty]: Start isEmpty. Operand 8389 states and 12583 transitions. [2018-10-24 23:49:02,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-10-24 23:49:02,314 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:49:02,314 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:49:02,318 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:49:02,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:02,318 INFO L82 PathProgramCache]: Analyzing trace with hash -1743474682, now seen corresponding path program 1 times [2018-10-24 23:49:02,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:49:02,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:02,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:02,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:02,320 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:49:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:02,558 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 21 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 23:49:02,559 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:49:02,559 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:49:02,560 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 172 with the following transitions: [2018-10-24 23:49:02,561 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [746], [748], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1239], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 23:49:02,609 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:49:02,609 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:49:04,369 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:49:04,371 INFO L272 AbstractInterpreter]: Visited 88 different actions 250 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 23:49:04,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:04,417 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:49:04,417 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:49:04,417 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 23:49:04,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:04,433 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:49:04,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:04,529 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:49:05,058 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 93 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:49:05,058 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:49:05,321 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-24 23:49:06,126 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2018-10-24 23:49:06,228 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 93 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:49:06,263 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 23:49:06,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-24 23:49:06,263 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 23:49:06,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 23:49:06,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 23:49:06,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-24 23:49:06,266 INFO L87 Difference]: Start difference. First operand 8389 states and 12583 transitions. Second operand 9 states. [2018-10-24 23:49:16,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:49:16,245 INFO L93 Difference]: Finished difference Result 20872 states and 31693 transitions. [2018-10-24 23:49:16,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-24 23:49:16,246 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2018-10-24 23:49:16,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:49:16,357 INFO L225 Difference]: With dead ends: 20872 [2018-10-24 23:49:16,358 INFO L226 Difference]: Without dead ends: 12454 [2018-10-24 23:49:16,423 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 340 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2018-10-24 23:49:16,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12454 states. [2018-10-24 23:49:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12454 to 12429. [2018-10-24 23:49:16,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12429 states. [2018-10-24 23:49:16,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12429 states to 12429 states and 15973 transitions. [2018-10-24 23:49:16,806 INFO L78 Accepts]: Start accepts. Automaton has 12429 states and 15973 transitions. Word has length 171 [2018-10-24 23:49:16,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:49:16,807 INFO L481 AbstractCegarLoop]: Abstraction has 12429 states and 15973 transitions. [2018-10-24 23:49:16,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 23:49:16,807 INFO L276 IsEmpty]: Start isEmpty. Operand 12429 states and 15973 transitions. [2018-10-24 23:49:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-10-24 23:49:16,811 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:49:16,811 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:49:16,812 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:49:16,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:16,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1229647360, now seen corresponding path program 1 times [2018-10-24 23:49:16,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:49:16,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:16,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:16,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:16,814 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:49:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:17,167 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:49:17,899 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 74 proven. 18 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 23:49:17,899 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:49:17,900 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:49:17,901 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 185 with the following transitions: [2018-10-24 23:49:17,901 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [746], [748], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1239], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 23:49:17,910 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:49:17,912 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:49:18,734 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:49:18,735 INFO L272 AbstractInterpreter]: Visited 97 different actions 293 times. Merged at 7 different actions 25 times. Widened at 1 different actions 1 times. Found 3 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 23:49:18,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:18,780 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:49:18,780 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:49:18,781 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 23:49:18,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:18,792 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:49:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:18,881 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:49:19,077 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-10-24 23:49:19,078 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:49:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-10-24 23:49:19,508 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:49:19,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-10-24 23:49:19,508 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:49:19,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:49:19,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:49:19,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:49:19,510 INFO L87 Difference]: Start difference. First operand 12429 states and 15973 transitions. Second operand 3 states. [2018-10-24 23:49:25,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:49:25,440 INFO L93 Difference]: Finished difference Result 24852 states and 31940 transitions. [2018-10-24 23:49:25,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:49:25,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2018-10-24 23:49:25,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:49:25,490 INFO L225 Difference]: With dead ends: 24852 [2018-10-24 23:49:25,490 INFO L226 Difference]: Without dead ends: 12429 [2018-10-24 23:49:25,531 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 368 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:49:25,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12429 states. [2018-10-24 23:49:25,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12429 to 12429. [2018-10-24 23:49:25,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12429 states. [2018-10-24 23:49:25,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12429 states to 12429 states and 15351 transitions. [2018-10-24 23:49:25,828 INFO L78 Accepts]: Start accepts. Automaton has 12429 states and 15351 transitions. Word has length 184 [2018-10-24 23:49:25,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:49:25,828 INFO L481 AbstractCegarLoop]: Abstraction has 12429 states and 15351 transitions. [2018-10-24 23:49:25,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:49:25,830 INFO L276 IsEmpty]: Start isEmpty. Operand 12429 states and 15351 transitions. [2018-10-24 23:49:25,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-10-24 23:49:25,837 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:49:25,837 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:49:25,837 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:49:25,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:25,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1949496289, now seen corresponding path program 1 times [2018-10-24 23:49:25,838 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:49:25,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:25,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:25,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:25,846 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:49:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:26,490 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-24 23:49:27,126 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 21 proven. 59 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-10-24 23:49:27,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:49:27,126 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:49:27,126 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-10-24 23:49:27,127 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [746], [748], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1547], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 23:49:27,133 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:49:27,133 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:49:27,734 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:49:27,735 INFO L272 AbstractInterpreter]: Visited 151 different actions 301 times. Merged at 7 different actions 11 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 26 variables. [2018-10-24 23:49:27,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:27,776 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:49:27,776 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:49:27,776 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 23:49:27,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:27,789 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:49:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:27,871 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:49:28,293 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-10-24 23:49:28,746 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-10-24 23:49:28,746 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:49:29,313 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-10-24 23:49:29,434 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-10-24 23:49:31,895 WARN L179 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 39 DAG size of output: 15 [2018-10-24 23:49:32,494 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2018-10-24 23:49:33,070 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 25 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:49:33,096 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 23:49:33,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 18 [2018-10-24 23:49:33,097 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 23:49:33,098 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 23:49:33,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 23:49:33,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2018-10-24 23:49:33,099 INFO L87 Difference]: Start difference. First operand 12429 states and 15351 transitions. Second operand 13 states. [2018-10-24 23:49:47,612 WARN L179 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2018-10-24 23:50:29,049 WARN L179 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 29 [2018-10-24 23:50:35,827 WARN L179 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 46 DAG size of output: 32 Received shutdown request... [2018-10-24 23:52:18,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2018-10-24 23:52:18,533 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 23:52:18,540 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 23:52:18,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:52:18 BoogieIcfgContainer [2018-10-24 23:52:18,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 23:52:18,541 INFO L168 Benchmark]: Toolchain (without parser) took 256051.89 ms. Allocated memory was 1.5 GB in the beginning and 3.2 GB in the end (delta: 1.7 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.2 MB). Peak memory consumption was 930.2 MB. Max. memory is 7.1 GB. [2018-10-24 23:52:18,543 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 23:52:18,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1533.09 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 23:52:18,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 487.32 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -924.5 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 23:52:18,545 INFO L168 Benchmark]: Boogie Preprocessor took 274.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-24 23:52:18,546 INFO L168 Benchmark]: RCFGBuilder took 14805.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 464.9 MB). Peak memory consumption was 464.9 MB. Max. memory is 7.1 GB. [2018-10-24 23:52:18,547 INFO L168 Benchmark]: TraceAbstraction took 238945.81 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 940.0 MB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -488.6 MB). Peak memory consumption was 451.5 MB. Max. memory is 7.1 GB. [2018-10-24 23:52:18,552 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1533.09 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 487.32 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.3 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -924.5 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 274.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14805.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 464.9 MB). Peak memory consumption was 464.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238945.81 ms. Allocated memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: 940.0 MB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -488.6 MB). Peak memory consumption was 451.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 38]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 38). Cancelled while BasicCegarLoop was constructing difference of abstraction (12429states) and FLOYD_HOARE automaton (currently 99 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (30819 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 238.8s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 222.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1893 SDtfs, 20775 SDslu, 2964 SDs, 0 SdLazy, 33665 SolverSat, 7179 SolverUnsat, 55 SolverUnknown, 0 SolverNotchecked, 194.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1360 GetRequests, 1204 SyntacticMatches, 11 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4397 ImplicationChecksByTransitivity, 24.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12429occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.3s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 163 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 1414 NumberOfCodeBlocks, 1414 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2004 ConstructedInterpolants, 98 QuantifiedInterpolants, 2217653 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1180 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 755/926 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown