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_label13_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:28:53,732 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:28:53,737 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:28:53,753 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:28:53,753 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:28:53,754 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:28:53,756 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:28:53,758 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:28:53,761 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:28:53,762 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:28:53,763 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:28:53,765 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:28:53,765 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:28:53,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:28:53,775 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:28:53,776 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:28:53,777 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:28:53,781 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:28:53,785 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:28:53,787 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:28:53,789 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:28:53,790 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:28:53,793 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:28:53,793 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:28:53,794 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:28:53,798 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:28:53,800 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:28:53,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:28:53,802 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:28:53,803 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:28:53,804 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:28:53,809 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 18:28:53,811 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 18:28:53,839 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:28:53,839 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:28:53,840 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:28:53,840 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:28:53,840 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:28:53,841 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:28:53,841 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:28:53,841 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:28:53,841 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:28:53,841 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:28:53,842 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:28:53,842 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:28:53,843 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:28:53,843 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:28:53,843 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:28:53,843 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:28:53,843 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:28:53,844 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:28:53,844 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:28:53,844 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:28:53,844 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:28:53,844 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:28:53,845 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:28:53,845 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:28:53,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:28:53,845 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:28:53,846 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:28:53,846 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:28:53,846 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:28:53,846 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:28:53,847 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:28:53,847 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:28:53,847 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:28:53,847 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:28:53,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:28:53,904 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:28:53,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:28:53,910 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:28:53,911 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:28:53,911 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label13_false-unreach-call_false-termination.c [2018-10-24 18:28:53,985 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bcb511f17/c8bda76a372d4146861382df88316a40/FLAG12bd849d4 [2018-10-24 18:28:54,600 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:28:54,601 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label13_false-unreach-call_false-termination.c [2018-10-24 18:28:54,618 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bcb511f17/c8bda76a372d4146861382df88316a40/FLAG12bd849d4 [2018-10-24 18:28:54,635 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bcb511f17/c8bda76a372d4146861382df88316a40 [2018-10-24 18:28:54,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:28:54,659 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:28:54,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:28:54,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:28:54,665 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:28:54,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:28:54" (1/1) ... [2018-10-24 18:28:54,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@254e2d34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:54, skipping insertion in model container [2018-10-24 18:28:54,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:28:54" (1/1) ... [2018-10-24 18:28:54,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:28:54,770 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:28:55,236 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:28:55,241 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:28:55,398 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:28:55,424 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:28:55,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55 WrapperNode [2018-10-24 18:28:55,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:28:55,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:28:55,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:28:55,427 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:28:55,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (1/1) ... [2018-10-24 18:28:55,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (1/1) ... [2018-10-24 18:28:55,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:28:55,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:28:55,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:28:55,673 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:28:55,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (1/1) ... [2018-10-24 18:28:55,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (1/1) ... [2018-10-24 18:28:55,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (1/1) ... [2018-10-24 18:28:55,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (1/1) ... [2018-10-24 18:28:55,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (1/1) ... [2018-10-24 18:28:55,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (1/1) ... [2018-10-24 18:28:55,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (1/1) ... [2018-10-24 18:28:55,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:28:55,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:28:55,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:28:55,798 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:28:55,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (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 18:28:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:28:55,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:28:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:28:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:28:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:28:55,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:28:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:28:55,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:28:59,658 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:28:59,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:28:59 BoogieIcfgContainer [2018-10-24 18:28:59,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:28:59,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:28:59,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:28:59,665 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:28:59,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:28:54" (1/3) ... [2018-10-24 18:28:59,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aeaf9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:28:59, skipping insertion in model container [2018-10-24 18:28:59,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:28:55" (2/3) ... [2018-10-24 18:28:59,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aeaf9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:28:59, skipping insertion in model container [2018-10-24 18:28:59,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:28:59" (3/3) ... [2018-10-24 18:28:59,670 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label13_false-unreach-call_false-termination.c [2018-10-24 18:28:59,681 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:28:59,690 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:28:59,708 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:28:59,749 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:28:59,750 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:28:59,750 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:28:59,750 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:28:59,750 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:28:59,750 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:28:59,751 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:28:59,751 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:28:59,779 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-24 18:28:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-24 18:28:59,788 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:28:59,789 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:28:59,791 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:28:59,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:28:59,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1859951889, now seen corresponding path program 1 times [2018-10-24 18:28:59,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:28:59,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:28:59,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:28:59,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:28:59,862 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:28:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:29:00,213 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:29:00,238 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 18:29:00,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:29:00,240 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:29:00,241 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:29:00,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:29:00,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:29:00,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:29:00,266 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-10-24 18:29:01,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:29:01,827 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-10-24 18:29:01,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:29:01,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-10-24 18:29:01,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:29:01,857 INFO L225 Difference]: With dead ends: 691 [2018-10-24 18:29:01,857 INFO L226 Difference]: Without dead ends: 434 [2018-10-24 18:29:01,865 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:29:01,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-10-24 18:29:01,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-10-24 18:29:01,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-10-24 18:29:01,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-10-24 18:29:01,979 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 31 [2018-10-24 18:29:01,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:29:01,980 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-10-24 18:29:01,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:29:01,980 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-10-24 18:29:01,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-10-24 18:29:01,988 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:29:01,989 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:01,991 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:29:01,991 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:01,991 INFO L82 PathProgramCache]: Analyzing trace with hash -984490100, now seen corresponding path program 1 times [2018-10-24 18:29:01,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:29:01,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:01,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:29:01,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:01,994 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:29:02,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:29:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:29:02,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:29:02,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:29:02,362 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:29:02,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:29:02,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:29:02,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:29:02,365 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-10-24 18:29:06,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:29:06,218 INFO L93 Difference]: Finished difference Result 1588 states and 2935 transitions. [2018-10-24 18:29:06,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:29:06,220 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2018-10-24 18:29:06,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:29:06,234 INFO L225 Difference]: With dead ends: 1588 [2018-10-24 18:29:06,234 INFO L226 Difference]: Without dead ends: 1160 [2018-10-24 18:29:06,240 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 18:29:06,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2018-10-24 18:29:06,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1153. [2018-10-24 18:29:06,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2018-10-24 18:29:06,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1887 transitions. [2018-10-24 18:29:06,319 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1887 transitions. Word has length 101 [2018-10-24 18:29:06,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:29:06,320 INFO L481 AbstractCegarLoop]: Abstraction has 1153 states and 1887 transitions. [2018-10-24 18:29:06,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:29:06,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1887 transitions. [2018-10-24 18:29:06,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-10-24 18:29:06,324 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:29:06,324 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:06,324 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:29:06,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:06,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1471379143, now seen corresponding path program 1 times [2018-10-24 18:29:06,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:29:06,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:06,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:29:06,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:06,327 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:29:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:29:06,705 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:29:06,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:29:06,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:29:06,705 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:29:06,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:29:06,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:29:06,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:29:06,707 INFO L87 Difference]: Start difference. First operand 1153 states and 1887 transitions. Second operand 5 states. [2018-10-24 18:29:09,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:29:09,507 INFO L93 Difference]: Finished difference Result 2716 states and 4601 transitions. [2018-10-24 18:29:09,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:29:09,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2018-10-24 18:29:09,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:29:09,534 INFO L225 Difference]: With dead ends: 2716 [2018-10-24 18:29:09,534 INFO L226 Difference]: Without dead ends: 1569 [2018-10-24 18:29:09,542 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:29:09,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2018-10-24 18:29:09,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1538. [2018-10-24 18:29:09,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1538 states. [2018-10-24 18:29:09,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2356 transitions. [2018-10-24 18:29:09,610 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2356 transitions. Word has length 102 [2018-10-24 18:29:09,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:29:09,611 INFO L481 AbstractCegarLoop]: Abstraction has 1538 states and 2356 transitions. [2018-10-24 18:29:09,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:29:09,611 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2356 transitions. [2018-10-24 18:29:09,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-24 18:29:09,613 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:29:09,619 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:29:09,619 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:29:09,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:09,620 INFO L82 PathProgramCache]: Analyzing trace with hash -552645141, now seen corresponding path program 1 times [2018-10-24 18:29:09,620 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:29:09,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:09,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:29:09,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:09,622 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:29:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:29:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:29:09,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:29:09,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 18:29:09,871 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:29:09,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 18:29:09,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 18:29:09,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 18:29:09,872 INFO L87 Difference]: Start difference. First operand 1538 states and 2356 transitions. Second operand 5 states. [2018-10-24 18:29:12,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:29:12,412 INFO L93 Difference]: Finished difference Result 4906 states and 7504 transitions. [2018-10-24 18:29:12,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 18:29:12,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2018-10-24 18:29:12,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:29:12,447 INFO L225 Difference]: With dead ends: 4906 [2018-10-24 18:29:12,447 INFO L226 Difference]: Without dead ends: 3374 [2018-10-24 18:29:12,462 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:29:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3374 states. [2018-10-24 18:29:12,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3374 to 3263. [2018-10-24 18:29:12,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3263 states. [2018-10-24 18:29:12,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3263 states to 3263 states and 4437 transitions. [2018-10-24 18:29:12,558 INFO L78 Accepts]: Start accepts. Automaton has 3263 states and 4437 transitions. Word has length 104 [2018-10-24 18:29:12,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:29:12,558 INFO L481 AbstractCegarLoop]: Abstraction has 3263 states and 4437 transitions. [2018-10-24 18:29:12,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 18:29:12,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3263 states and 4437 transitions. [2018-10-24 18:29:12,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-10-24 18:29:12,563 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:29:12,564 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:29:12,564 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:29:12,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:12,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1003054539, now seen corresponding path program 1 times [2018-10-24 18:29:12,565 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:29:12,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:12,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:29:12,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:12,566 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:29:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:29:12,736 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-10-24 18:29:12,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:29:12,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:29:12,736 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:29:12,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:29:12,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:29:12,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:29:12,738 INFO L87 Difference]: Start difference. First operand 3263 states and 4437 transitions. Second operand 4 states. [2018-10-24 18:29:15,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:29:15,097 INFO L93 Difference]: Finished difference Result 8796 states and 12469 transitions. [2018-10-24 18:29:15,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:29:15,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 189 [2018-10-24 18:29:15,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:29:15,129 INFO L225 Difference]: With dead ends: 8796 [2018-10-24 18:29:15,129 INFO L226 Difference]: Without dead ends: 5539 [2018-10-24 18:29:15,154 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:29:15,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5539 states. [2018-10-24 18:29:15,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5539 to 5539. [2018-10-24 18:29:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5539 states. [2018-10-24 18:29:15,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5539 states to 5539 states and 7494 transitions. [2018-10-24 18:29:15,299 INFO L78 Accepts]: Start accepts. Automaton has 5539 states and 7494 transitions. Word has length 189 [2018-10-24 18:29:15,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:29:15,300 INFO L481 AbstractCegarLoop]: Abstraction has 5539 states and 7494 transitions. [2018-10-24 18:29:15,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:29:15,300 INFO L276 IsEmpty]: Start isEmpty. Operand 5539 states and 7494 transitions. [2018-10-24 18:29:15,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-10-24 18:29:15,315 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:29:15,315 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:29:15,315 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:29:15,316 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:15,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1300699199, now seen corresponding path program 1 times [2018-10-24 18:29:15,316 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:29:15,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:15,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:29:15,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:15,317 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:29:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:29:15,747 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-24 18:29:16,015 WARN L179 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-10-24 18:29:16,381 WARN L179 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2018-10-24 18:29:17,093 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:29:17,094 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:29:17,094 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:29:17,095 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 250 with the following transitions: [2018-10-24 18:29:17,097 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [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], [634], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:29:17,186 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:29:17,186 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:29:20,042 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:29:23,045 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:29:23,047 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 18:29:23,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:23,091 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:29:25,842 INFO L232 lantSequenceWeakener]: Weakened 241 states. On average, predicates are now at 77.6% of their original sizes. [2018-10-24 18:29:25,842 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:29:26,309 INFO L413 sIntCurrentIteration]: We have 248 unified AI predicates [2018-10-24 18:29:26,309 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:29:26,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:29:26,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2018-10-24 18:29:26,311 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:29:26,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:29:26,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:29:26,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:29:26,312 INFO L87 Difference]: Start difference. First operand 5539 states and 7494 transitions. Second operand 7 states. [2018-10-24 18:29:40,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:29:40,122 INFO L93 Difference]: Finished difference Result 11257 states and 15211 transitions. [2018-10-24 18:29:40,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:29:40,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 249 [2018-10-24 18:29:40,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:29:40,148 INFO L225 Difference]: With dead ends: 11257 [2018-10-24 18:29:40,148 INFO L226 Difference]: Without dead ends: 5724 [2018-10-24 18:29:40,172 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 249 GetRequests, 243 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 18:29:40,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2018-10-24 18:29:40,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 5722. [2018-10-24 18:29:40,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5722 states. [2018-10-24 18:29:40,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 7685 transitions. [2018-10-24 18:29:40,320 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 7685 transitions. Word has length 249 [2018-10-24 18:29:40,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:29:40,321 INFO L481 AbstractCegarLoop]: Abstraction has 5722 states and 7685 transitions. [2018-10-24 18:29:40,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:29:40,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 7685 transitions. [2018-10-24 18:29:40,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2018-10-24 18:29:40,337 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:29:40,337 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 18:29:40,338 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:29:40,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:40,338 INFO L82 PathProgramCache]: Analyzing trace with hash -1735802637, now seen corresponding path program 1 times [2018-10-24 18:29:40,338 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:29:40,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:40,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:29:40,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:29:40,340 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:29:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:29:40,851 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:29:41,038 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 18:29:41,262 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:29:41,791 WARN L179 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-10-24 18:29:42,261 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 160 proven. 182 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:29:42,261 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:29:42,262 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:29:42,262 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 335 with the following transitions: [2018-10-24 18:29:42,262 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [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], [634], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-24 18:29:42,268 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:29:42,269 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:29:45,490 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:29:51,026 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:29:51,027 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 18:29:51,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:29:51,033 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:29:54,539 INFO L232 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 77.97% of their original sizes. [2018-10-24 18:29:54,540 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:30:16,638 INFO L413 sIntCurrentIteration]: We have 333 unified AI predicates [2018-10-24 18:30:16,638 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:30:16,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:30:16,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [12] total 30 [2018-10-24 18:30:16,638 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:30:16,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-24 18:30:16,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-24 18:30:16,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-10-24 18:30:16,640 INFO L87 Difference]: Start difference. First operand 5722 states and 7685 transitions. Second operand 20 states. [2018-10-24 18:32:48,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:32:48,116 INFO L93 Difference]: Finished difference Result 12620 states and 16696 transitions. [2018-10-24 18:32:48,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-24 18:32:48,117 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 334 [2018-10-24 18:32:48,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:32:48,143 INFO L225 Difference]: With dead ends: 12620 [2018-10-24 18:32:48,144 INFO L226 Difference]: Without dead ends: 5727 [2018-10-24 18:32:48,169 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 340 GetRequests, 295 SyntacticMatches, 20 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 23.4s TimeCoverageRelationStatistics Valid=148, Invalid=554, Unknown=0, NotChecked=0, Total=702 [2018-10-24 18:32:48,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5727 states. [2018-10-24 18:32:48,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5727 to 5722. [2018-10-24 18:32:48,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5722 states. [2018-10-24 18:32:48,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5722 states to 5722 states and 7679 transitions. [2018-10-24 18:32:48,391 INFO L78 Accepts]: Start accepts. Automaton has 5722 states and 7679 transitions. Word has length 334 [2018-10-24 18:32:48,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:32:48,392 INFO L481 AbstractCegarLoop]: Abstraction has 5722 states and 7679 transitions. [2018-10-24 18:32:48,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-24 18:32:48,392 INFO L276 IsEmpty]: Start isEmpty. Operand 5722 states and 7679 transitions. [2018-10-24 18:32:48,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-10-24 18:32:48,412 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:32:48,412 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:32:48,413 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:32:48,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:32:48,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1103940409, now seen corresponding path program 1 times [2018-10-24 18:32:48,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:32:48,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:32:48,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:32:48,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:32:48,415 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:32:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:32:48,948 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:32:49,158 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 18:32:49,377 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 18:32:49,790 WARN L179 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-24 18:32:50,280 WARN L179 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 27 Received shutdown request... [2018-10-24 18:32:50,321 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:32:50,326 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:32:50,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:32:50 BoogieIcfgContainer [2018-10-24 18:32:50,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:32:50,328 INFO L168 Benchmark]: Toolchain (without parser) took 235671.75 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 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 484.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:50,330 INFO L168 Benchmark]: CDTParser took 0.19 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 18:32:50,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.17 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:50,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 246.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:50,335 INFO L168 Benchmark]: Boogie Preprocessor took 124.41 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:50,335 INFO L168 Benchmark]: RCFGBuilder took 3861.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 120.7 MB). Peak memory consumption was 120.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:50,336 INFO L168 Benchmark]: TraceAbstraction took 230666.59 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 379.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:32:50,342 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 765.17 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 246.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 726.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -822.2 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.41 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3861.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 120.7 MB). Peak memory consumption was 120.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230666.59 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 379.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 76). Cancelled while BasicCegarLoop was analyzing trace of length 361 with TraceHistMax 4,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 9 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 230.5s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 178.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 987 SDtfs, 6693 SDslu, 873 SDs, 0 SdLazy, 8695 SolverSat, 1568 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.8s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 627 GetRequests, 550 SyntacticMatches, 24 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 24.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5722occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9957937339419789 AbsIntWeakeningRatio, 0.09982788296041308 AbsIntAvgWeakeningVarsNumRemoved, 616.9724612736661 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 156 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 1110 NumberOfCodeBlocks, 1110 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1103 ConstructedInterpolants, 0 QuantifiedInterpolants, 2592656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 510/694 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown