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/Problem14_label41_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:32:52,713 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:32:52,717 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:32:52,733 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:32:52,733 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:32:52,736 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:32:52,738 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:32:52,740 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:32:52,742 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:32:52,742 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:32:52,743 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:32:52,744 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:32:52,745 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:32:52,746 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:32:52,747 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:32:52,747 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:32:52,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:32:52,750 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:32:52,752 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:32:52,753 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:32:52,754 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:32:52,756 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:32:52,758 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:32:52,758 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:32:52,758 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:32:52,759 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:32:52,760 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:32:52,761 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:32:52,762 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:32:52,763 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:32:52,763 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:32:52,764 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:32:52,764 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:32:52,764 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:32:52,765 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:32:52,766 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:32:52,766 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 18:32:52,781 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:32:52,782 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:32:52,783 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:32:52,783 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:32:52,783 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:32:52,783 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:32:52,783 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:32:52,784 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:32:52,784 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:32:52,784 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:32:52,784 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:32:52,784 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:32:52,785 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:32:52,785 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:32:52,786 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:32:52,786 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:32:52,786 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:32:52,786 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:32:52,786 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:32:52,787 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:32:52,787 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:32:52,787 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:32:52,787 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:32:52,787 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:32:52,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:32:52,788 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:32:52,788 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:32:52,788 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:32:52,788 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:32:52,789 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:32:52,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:32:52,789 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:32:52,789 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:32:52,789 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:32:52,855 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:32:52,871 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:32:52,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:32:52,876 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:32:52,877 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:32:52,878 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label41_false-unreach-call_false-termination.c [2018-10-24 18:32:52,932 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8e354b24f/f307af8f0e3e47c4bae27ff15b582726/FLAG4a859e685 [2018-10-24 18:32:53,512 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:32:53,516 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label41_false-unreach-call_false-termination.c [2018-10-24 18:32:53,542 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8e354b24f/f307af8f0e3e47c4bae27ff15b582726/FLAG4a859e685 [2018-10-24 18:32:53,560 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8e354b24f/f307af8f0e3e47c4bae27ff15b582726 [2018-10-24 18:32:53,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:32:53,571 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:32:53,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:32:53,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:32:53,576 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:32:53,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:32:53" (1/1) ... [2018-10-24 18:32:53,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379aca2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:53, skipping insertion in model container [2018-10-24 18:32:53,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:32:53" (1/1) ... [2018-10-24 18:32:53,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:32:53,668 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:32:54,204 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:32:54,210 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:32:54,397 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:32:54,417 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:32:54,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54 WrapperNode [2018-10-24 18:32:54,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:32:54,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:32:54,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:32:54,419 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:32:54,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (1/1) ... [2018-10-24 18:32:54,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (1/1) ... [2018-10-24 18:32:54,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:32:54,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:32:54,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:32:54,667 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:32:54,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (1/1) ... [2018-10-24 18:32:54,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (1/1) ... [2018-10-24 18:32:54,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (1/1) ... [2018-10-24 18:32:54,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (1/1) ... [2018-10-24 18:32:54,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (1/1) ... [2018-10-24 18:32:54,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (1/1) ... [2018-10-24 18:32:54,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (1/1) ... [2018-10-24 18:32:54,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:32:54,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:32:54,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:32:54,781 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:32:54,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (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 18:32:54,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:32:54,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:32:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:32:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:32:54,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:32:54,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:32:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:32:54,864 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:32:58,431 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:32:58,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:32:58 BoogieIcfgContainer [2018-10-24 18:32:58,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:32:58,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:32:58,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:32:58,436 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:32:58,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:32:53" (1/3) ... [2018-10-24 18:32:58,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a29c96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:32:58, skipping insertion in model container [2018-10-24 18:32:58,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:32:54" (2/3) ... [2018-10-24 18:32:58,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a29c96b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:32:58, skipping insertion in model container [2018-10-24 18:32:58,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:32:58" (3/3) ... [2018-10-24 18:32:58,443 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label41_false-unreach-call_false-termination.c [2018-10-24 18:32:58,454 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:32:58,466 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:32:58,486 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:32:58,533 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:32:58,534 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:32:58,534 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:32:58,534 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:32:58,534 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:32:58,535 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:32:58,535 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:32:58,535 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:32:58,564 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-24 18:32:58,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-24 18:32:58,571 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:32:58,573 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:32:58,575 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:32:58,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:32:58,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1981251204, now seen corresponding path program 1 times [2018-10-24 18:32:58,583 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:32:58,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:32:58,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:32:58,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:32:58,633 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:32:58,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:32:58,976 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:32:59,086 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 18:32:59,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:32:59,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:32:59,091 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:32:59,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:32:59,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:32:59,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:32:59,118 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-10-24 18:33:01,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:33:01,084 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-10-24 18:33:01,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:33:01,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-10-24 18:33:01,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:33:01,121 INFO L225 Difference]: With dead ends: 691 [2018-10-24 18:33:01,121 INFO L226 Difference]: Without dead ends: 434 [2018-10-24 18:33:01,136 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:33:01,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-10-24 18:33:01,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-10-24 18:33:01,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-10-24 18:33:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-10-24 18:33:01,278 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 14 [2018-10-24 18:33:01,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:33:01,279 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-10-24 18:33:01,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:33:01,279 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-10-24 18:33:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 18:33:01,287 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:33:01,290 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:33:01,290 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:33:01,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:01,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1394388241, now seen corresponding path program 1 times [2018-10-24 18:33:01,293 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:33:01,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:01,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:33:01,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:01,295 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:33:01,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:33:01,655 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:33:01,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:33:01,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:33:01,656 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:33:01,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:33:01,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:33:01,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:33:01,659 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-10-24 18:33:03,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:33:03,712 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-10-24 18:33:03,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:33:03,714 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-24 18:33:03,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:33:03,721 INFO L225 Difference]: With dead ends: 1062 [2018-10-24 18:33:03,721 INFO L226 Difference]: Without dead ends: 634 [2018-10-24 18:33:03,724 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 18:33:03,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-10-24 18:33:03,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-10-24 18:33:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-10-24 18:33:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-10-24 18:33:03,773 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 101 [2018-10-24 18:33:03,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:33:03,774 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-10-24 18:33:03,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:33:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-10-24 18:33:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-24 18:33:03,781 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:33:03,783 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:33:03,784 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:33:03,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:03,784 INFO L82 PathProgramCache]: Analyzing trace with hash -425574092, now seen corresponding path program 1 times [2018-10-24 18:33:03,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:33:03,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:03,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:33:03,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:03,787 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:33:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:33:03,978 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:33:03,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:33:03,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:33:03,979 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:33:03,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:33:03,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:33:03,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:33:03,981 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 3 states. [2018-10-24 18:33:06,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:33:06,868 INFO L93 Difference]: Finished difference Result 1797 states and 3018 transitions. [2018-10-24 18:33:06,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:33:06,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 110 [2018-10-24 18:33:06,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:33:06,880 INFO L225 Difference]: With dead ends: 1797 [2018-10-24 18:33:06,880 INFO L226 Difference]: Without dead ends: 1178 [2018-10-24 18:33:06,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:33:06,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2018-10-24 18:33:06,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1178. [2018-10-24 18:33:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1178 states. [2018-10-24 18:33:06,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1732 transitions. [2018-10-24 18:33:06,926 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1732 transitions. Word has length 110 [2018-10-24 18:33:06,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:33:06,927 INFO L481 AbstractCegarLoop]: Abstraction has 1178 states and 1732 transitions. [2018-10-24 18:33:06,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:33:06,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1732 transitions. [2018-10-24 18:33:06,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-10-24 18:33:06,938 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:33:06,938 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:33:06,939 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:33:06,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:06,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1659653320, now seen corresponding path program 1 times [2018-10-24 18:33:06,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:33:06,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:06,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:33:06,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:06,943 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:33:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:33:07,260 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-24 18:33:07,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:33:07,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:33:07,261 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:33:07,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:33:07,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:33:07,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:33:07,264 INFO L87 Difference]: Start difference. First operand 1178 states and 1732 transitions. Second operand 3 states. [2018-10-24 18:33:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:33:09,377 INFO L93 Difference]: Finished difference Result 2903 states and 4462 transitions. [2018-10-24 18:33:09,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:33:09,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2018-10-24 18:33:09,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:33:09,401 INFO L225 Difference]: With dead ends: 2903 [2018-10-24 18:33:09,401 INFO L226 Difference]: Without dead ends: 1731 [2018-10-24 18:33:09,411 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:33:09,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2018-10-24 18:33:09,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2018-10-24 18:33:09,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1731 states. [2018-10-24 18:33:09,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2449 transitions. [2018-10-24 18:33:09,471 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2449 transitions. Word has length 214 [2018-10-24 18:33:09,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:33:09,472 INFO L481 AbstractCegarLoop]: Abstraction has 1731 states and 2449 transitions. [2018-10-24 18:33:09,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:33:09,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2449 transitions. [2018-10-24 18:33:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-10-24 18:33:09,480 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:33:09,480 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 18:33:09,480 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:33:09,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:09,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1017345513, now seen corresponding path program 1 times [2018-10-24 18:33:09,481 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:33:09,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:09,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:33:09,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:09,482 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:33:09,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:33:10,024 WARN L179 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-10-24 18:33:10,359 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-24 18:33:10,730 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 14 proven. 101 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:33:10,730 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:33:10,731 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:33:10,732 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-10-24 18:33:10,734 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [13], [15], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [638], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:33:10,807 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:33:10,807 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:33:13,848 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:33:16,855 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:33:16,857 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:33:16,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:16,900 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:33:20,082 INFO L232 lantSequenceWeakener]: Weakened 225 states. On average, predicates are now at 77.28% of their original sizes. [2018-10-24 18:33:20,083 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:33:20,546 INFO L413 sIntCurrentIteration]: We have 232 unified AI predicates [2018-10-24 18:33:20,546 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:33:20,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:33:20,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-10-24 18:33:20,548 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:33:20,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:33:20,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:33:20,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:33:20,549 INFO L87 Difference]: Start difference. First operand 1731 states and 2449 transitions. Second operand 7 states. [2018-10-24 18:33:50,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:33:50,540 INFO L93 Difference]: Finished difference Result 3641 states and 5191 transitions. [2018-10-24 18:33:50,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:33:50,540 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 233 [2018-10-24 18:33:50,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:33:50,552 INFO L225 Difference]: With dead ends: 3641 [2018-10-24 18:33:50,552 INFO L226 Difference]: Without dead ends: 1916 [2018-10-24 18:33:50,560 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 233 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:33:50,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2018-10-24 18:33:50,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1914. [2018-10-24 18:33:50,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2018-10-24 18:33:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2640 transitions. [2018-10-24 18:33:50,617 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2640 transitions. Word has length 233 [2018-10-24 18:33:50,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:33:50,617 INFO L481 AbstractCegarLoop]: Abstraction has 1914 states and 2640 transitions. [2018-10-24 18:33:50,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:33:50,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2640 transitions. [2018-10-24 18:33:50,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-10-24 18:33:50,625 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:33:50,625 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:33:50,626 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:33:50,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:50,626 INFO L82 PathProgramCache]: Analyzing trace with hash 931974248, now seen corresponding path program 1 times [2018-10-24 18:33:50,626 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:33:50,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:50,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:33:50,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:33:50,628 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:33:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:33:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 109 proven. 183 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:33:51,414 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:33:51,414 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:33:51,414 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 319 with the following transitions: [2018-10-24 18:33:51,415 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [13], [15], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [638], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:33:51,421 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:33:51,421 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:33:53,720 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:33:58,572 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:33:58,572 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:33:58,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:33:58,581 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:34:01,253 INFO L232 lantSequenceWeakener]: Weakened 118 states. On average, predicates are now at 77.53% of their original sizes. [2018-10-24 18:34:01,254 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:34:37,567 INFO L413 sIntCurrentIteration]: We have 317 unified AI predicates [2018-10-24 18:34:37,569 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:34:37,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:34:37,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [12] total 30 [2018-10-24 18:34:37,570 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:34:37,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-24 18:34:37,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-24 18:34:37,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-10-24 18:34:37,572 INFO L87 Difference]: Start difference. First operand 1914 states and 2640 transitions. Second operand 20 states. [2018-10-24 18:36:44,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:36:44,550 INFO L93 Difference]: Finished difference Result 4478 states and 6122 transitions. [2018-10-24 18:36:44,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 18:36:44,550 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 318 [2018-10-24 18:36:44,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:36:44,559 INFO L225 Difference]: With dead ends: 4478 [2018-10-24 18:36:44,560 INFO L226 Difference]: Without dead ends: 1919 [2018-10-24 18:36:44,569 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 324 GetRequests, 259 SyntacticMatches, 40 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2018-10-24 18:36:44,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2018-10-24 18:36:44,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1914. [2018-10-24 18:36:44,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1914 states. [2018-10-24 18:36:44,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2634 transitions. [2018-10-24 18:36:44,656 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2634 transitions. Word has length 318 [2018-10-24 18:36:44,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:36:44,657 INFO L481 AbstractCegarLoop]: Abstraction has 1914 states and 2634 transitions. [2018-10-24 18:36:44,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-24 18:36:44,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2634 transitions. [2018-10-24 18:36:44,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2018-10-24 18:36:44,665 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:36:44,665 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:36:44,666 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:36:44,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:36:44,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1252708484, now seen corresponding path program 1 times [2018-10-24 18:36:44,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:36:44,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:44,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:36:44,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:36:44,667 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:36:44,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:36:45,190 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:36:45,400 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 18:36:45,629 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:36:46,039 WARN L179 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-24 18:36:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 34 proven. 305 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:36:46,843 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:36:46,843 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:36:46,843 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 345 with the following transitions: [2018-10-24 18:36:46,844 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [13], [15], [18], [26], [34], [42], [50], [58], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [638], [639], [643], [647], [651], [655], [658], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:36:46,848 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:36:46,848 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:36:49,738 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 18:36:52,641 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 18:36:52,642 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 18:36:52,643 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 18:36:52,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:36:52,643 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 18:36:52,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:36:52,652 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 18:36:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:36:52,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 18:36:52,793 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 18:36:52,994 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 18:36:52,995 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:36:53,000 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:36:53,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:36:53 BoogieIcfgContainer [2018-10-24 18:36:53,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:36:53,001 INFO L168 Benchmark]: Toolchain (without parser) took 239430.75 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 893.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:36:53,002 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:36:53,003 INFO L168 Benchmark]: CACSL2BoogieTranslator took 846.17 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-10-24 18:36:53,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 247.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -838.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:36:53,004 INFO L168 Benchmark]: Boogie Preprocessor took 113.14 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-10-24 18:36:53,005 INFO L168 Benchmark]: RCFGBuilder took 3651.29 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: 116.6 MB). Peak memory consumption was 116.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:36:53,006 INFO L168 Benchmark]: TraceAbstraction took 234567.45 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 815.0 MB. Max. memory is 7.1 GB. [2018-10-24 18:36:53,019 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 846.17 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 247.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 731.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -838.8 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.14 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3651.29 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: 116.6 MB). Peak memory consumption was 116.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234567.45 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 815.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 25]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 25). Cancelled while BasicCegarLoop was analyzing trace of length 345 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 234.4s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 166.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1532 SDtfs, 4595 SDslu, 879 SDs, 0 SdLazy, 6090 SolverSat, 1162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 580 GetRequests, 496 SyntacticMatches, 43 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 38.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1914occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 19.1s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9955485599640981 AbsIntWeakeningRatio, 0.10564663023679417 AbsIntAvgWeakeningVarsNumRemoved, 626.7996357012751 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 990 NumberOfCodeBlocks, 990 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 984 ConstructedInterpolants, 0 QuantifiedInterpolants, 2079138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 248/532 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown