java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:03:28,738 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:03:28,740 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:03:28,752 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:03:28,752 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:03:28,753 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:03:28,755 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:03:28,757 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:03:28,758 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:03:28,759 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:03:28,760 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:03:28,760 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:03:28,761 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:03:28,762 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:03:28,763 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:03:28,764 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:03:28,765 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:03:28,767 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:03:28,769 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:03:28,771 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:03:28,772 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:03:28,773 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:03:28,776 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:03:28,776 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:03:28,777 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:03:28,778 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:03:28,779 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:03:28,779 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:03:28,780 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:03:28,781 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:03:28,782 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:03:28,782 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 21:03:28,785 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:03:28,800 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:03:28,800 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:03:28,801 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:03:28,801 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:03:28,802 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:03:28,802 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:03:28,802 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:03:28,802 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:03:28,802 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:03:28,803 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:03:28,803 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:03:28,803 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:03:28,804 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:03:28,804 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:03:28,804 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:03:28,804 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:03:28,805 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:03:28,805 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:03:28,805 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:03:28,805 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:03:28,805 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:03:28,806 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:03:28,806 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:03:28,806 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:03:28,806 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:03:28,806 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:03:28,807 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:03:28,807 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:03:28,807 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:03:28,807 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:03:28,807 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:03:28,808 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:03:28,808 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:03:28,808 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:03:28,852 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:03:28,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:03:28,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:03:28,870 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:03:28,870 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:03:28,871 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label53_true-unreach-call.c [2018-10-24 21:03:28,942 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/754d72834/ba3b2bd5faec4230ae211ea1a5f69fc5/FLAG709e592a8 [2018-10-24 21:03:29,541 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:03:29,542 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label53_true-unreach-call.c [2018-10-24 21:03:29,570 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/754d72834/ba3b2bd5faec4230ae211ea1a5f69fc5/FLAG709e592a8 [2018-10-24 21:03:29,596 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/754d72834/ba3b2bd5faec4230ae211ea1a5f69fc5 [2018-10-24 21:03:29,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:03:29,613 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:03:29,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:03:29,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:03:29,619 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:03:29,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:03:29" (1/1) ... [2018-10-24 21:03:29,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128929bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:29, skipping insertion in model container [2018-10-24 21:03:29,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:03:29" (1/1) ... [2018-10-24 21:03:29,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:03:29,699 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:03:30,159 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:03:30,163 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:03:30,316 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:03:30,344 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:03:30,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30 WrapperNode [2018-10-24 21:03:30,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:03:30,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:03:30,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:03:30,347 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:03:30,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (1/1) ... [2018-10-24 21:03:30,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (1/1) ... [2018-10-24 21:03:30,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:03:30,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:03:30,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:03:30,547 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:03:30,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (1/1) ... [2018-10-24 21:03:30,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (1/1) ... [2018-10-24 21:03:30,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (1/1) ... [2018-10-24 21:03:30,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (1/1) ... [2018-10-24 21:03:30,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (1/1) ... [2018-10-24 21:03:30,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (1/1) ... [2018-10-24 21:03:30,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (1/1) ... [2018-10-24 21:03:30,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:03:30,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:03:30,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:03:30,641 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:03:30,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:03:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:03:30,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:03:30,714 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:03:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:03:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:03:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:03:30,715 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:03:30,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:03:34,004 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:03:34,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:03:34 BoogieIcfgContainer [2018-10-24 21:03:34,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:03:34,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:03:34,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:03:34,010 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:03:34,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:03:29" (1/3) ... [2018-10-24 21:03:34,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ada0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:03:34, skipping insertion in model container [2018-10-24 21:03:34,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:03:30" (2/3) ... [2018-10-24 21:03:34,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ada0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:03:34, skipping insertion in model container [2018-10-24 21:03:34,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:03:34" (3/3) ... [2018-10-24 21:03:34,015 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label53_true-unreach-call.c [2018-10-24 21:03:34,026 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:03:34,037 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:03:34,055 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:03:34,095 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:03:34,095 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:03:34,095 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:03:34,095 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:03:34,095 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:03:34,096 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:03:34,096 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:03:34,097 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:03:34,123 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 21:03:34,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-24 21:03:34,132 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:03:34,133 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:03:34,136 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:03:34,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:03:34,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1566545735, now seen corresponding path program 1 times [2018-10-24 21:03:34,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:03:34,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:03:34,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:03:34,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:03:34,198 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:03:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:03:34,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:03:34,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:03:34,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:03:34,655 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:03:34,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:03:34,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:03:34,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:03:34,681 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 4 states. [2018-10-24 21:03:37,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:03:37,904 INFO L93 Difference]: Finished difference Result 737 states and 1298 transitions. [2018-10-24 21:03:37,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:03:37,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 49 [2018-10-24 21:03:37,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:03:37,929 INFO L225 Difference]: With dead ends: 737 [2018-10-24 21:03:37,930 INFO L226 Difference]: Without dead ends: 515 [2018-10-24 21:03:37,940 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:03:37,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2018-10-24 21:03:38,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 356. [2018-10-24 21:03:38,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 21:03:38,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 579 transitions. [2018-10-24 21:03:38,022 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 579 transitions. Word has length 49 [2018-10-24 21:03:38,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:03:38,023 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 579 transitions. [2018-10-24 21:03:38,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:03:38,023 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 579 transitions. [2018-10-24 21:03:38,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-24 21:03:38,031 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:03:38,031 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:03:38,032 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:03:38,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:03:38,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1784083955, now seen corresponding path program 1 times [2018-10-24 21:03:38,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:03:38,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:03:38,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:03:38,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:03:38,034 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:03:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:03:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:03:38,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:03:38,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:03:38,381 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:03:38,384 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:03:38,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:03:38,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:03:38,385 INFO L87 Difference]: Start difference. First operand 356 states and 579 transitions. Second operand 6 states. [2018-10-24 21:03:41,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:03:41,164 INFO L93 Difference]: Finished difference Result 1259 states and 2162 transitions. [2018-10-24 21:03:41,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:03:41,166 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-10-24 21:03:41,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:03:41,180 INFO L225 Difference]: With dead ends: 1259 [2018-10-24 21:03:41,181 INFO L226 Difference]: Without dead ends: 909 [2018-10-24 21:03:41,191 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:03:41,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2018-10-24 21:03:41,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 895. [2018-10-24 21:03:41,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 895 states. [2018-10-24 21:03:41,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1370 transitions. [2018-10-24 21:03:41,278 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1370 transitions. Word has length 124 [2018-10-24 21:03:41,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:03:41,279 INFO L481 AbstractCegarLoop]: Abstraction has 895 states and 1370 transitions. [2018-10-24 21:03:41,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:03:41,279 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1370 transitions. [2018-10-24 21:03:41,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-10-24 21:03:41,285 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:03:41,286 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:03:41,286 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:03:41,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:03:41,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1601083443, now seen corresponding path program 1 times [2018-10-24 21:03:41,287 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:03:41,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:03:41,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:03:41,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:03:41,289 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:03:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:03:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 21:03:41,623 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:03:41,623 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:03:41,624 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-10-24 21:03:41,627 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [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], [639], [642], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:03:41,718 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:03:41,719 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:03:45,640 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:03:45,642 INFO L272 AbstractInterpreter]: Visited 111 different actions 111 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 21:03:45,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:03:45,679 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:03:48,375 INFO L232 lantSequenceWeakener]: Weakened 141 states. On average, predicates are now at 74.1% of their original sizes. [2018-10-24 21:03:48,375 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:03:54,580 INFO L413 sIntCurrentIteration]: We have 155 unified AI predicates [2018-10-24 21:03:54,580 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:03:54,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:03:54,581 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-10-24 21:03:54,582 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:03:54,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 21:03:54,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 21:03:54,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:03:54,583 INFO L87 Difference]: Start difference. First operand 895 states and 1370 transitions. Second operand 10 states. [2018-10-24 21:04:07,440 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:04:40,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:04:40,559 INFO L93 Difference]: Finished difference Result 1933 states and 2971 transitions. [2018-10-24 21:04:40,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:04:40,560 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2018-10-24 21:04:40,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:04:40,576 INFO L225 Difference]: With dead ends: 1933 [2018-10-24 21:04:40,576 INFO L226 Difference]: Without dead ends: 1044 [2018-10-24 21:04:40,580 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 159 GetRequests, 111 SyntacticMatches, 36 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-24 21:04:40,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-10-24 21:04:40,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1039. [2018-10-24 21:04:40,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2018-10-24 21:04:40,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1521 transitions. [2018-10-24 21:04:40,748 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1521 transitions. Word has length 156 [2018-10-24 21:04:40,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:04:40,749 INFO L481 AbstractCegarLoop]: Abstraction has 1039 states and 1521 transitions. [2018-10-24 21:04:40,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 21:04:40,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1521 transitions. [2018-10-24 21:04:40,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-24 21:04:40,756 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:04:40,756 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:04:40,756 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:04:40,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:04:40,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1457972223, now seen corresponding path program 1 times [2018-10-24 21:04:40,757 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:04:40,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:04:40,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:04:40,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:04:40,759 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:04:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:04:41,097 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:04:41,424 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-24 21:04:41,424 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:04:41,425 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:04:41,425 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-10-24 21:04:41,425 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [293], [295], [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], [498], [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], [639], [642], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:04:41,437 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:04:41,437 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:04:42,882 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:05:02,709 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:05:02,709 INFO L272 AbstractInterpreter]: Visited 115 different actions 660 times. Merged at 5 different actions 25 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:05:02,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:05:02,718 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:05:05,336 INFO L232 lantSequenceWeakener]: Weakened 76 states. On average, predicates are now at 75.28% of their original sizes. [2018-10-24 21:05:05,336 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:05:13,083 INFO L413 sIntCurrentIteration]: We have 226 unified AI predicates [2018-10-24 21:05:13,084 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:05:13,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:05:13,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [4] total 19 [2018-10-24 21:05:13,084 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:05:13,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-24 21:05:13,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-24 21:05:13,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-10-24 21:05:13,086 INFO L87 Difference]: Start difference. First operand 1039 states and 1521 transitions. Second operand 17 states. Received shutdown request... [2018-10-24 21:07:24,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-24 21:07:24,506 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:07:24,510 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:07:24,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:07:24 BoogieIcfgContainer [2018-10-24 21:07:24,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:07:24,511 INFO L168 Benchmark]: Toolchain (without parser) took 234899.73 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -804.5 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-24 21:07:24,513 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 21:07:24,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:07:24,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 200.30 ms. Allocated memory was 1.5 GB in the beginning and 2.2 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: -808.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:07:24,515 INFO L168 Benchmark]: Boogie Preprocessor took 91.44 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:07:24,516 INFO L168 Benchmark]: RCFGBuilder took 3364.89 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 106.8 MB). Peak memory consumption was 106.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:07:24,516 INFO L168 Benchmark]: TraceAbstraction took 230504.04 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -158.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 21:07:24,525 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 731.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 200.30 ms. Allocated memory was 1.5 GB in the beginning and 2.2 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: -808.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.44 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3364.89 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 106.8 MB). Peak memory consumption was 106.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230504.04 ms. Allocated memory was 2.2 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.2 GB in the end (delta: -158.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 130). Cancelled while BasicCegarLoop was constructing difference of abstraction (1039states) and FLOYD_HOARE automaton (currently 22 states, 17 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 24 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 230.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 183.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 593 SDtfs, 3020 SDslu, 427 SDs, 0 SdLazy, 3610 SolverSat, 734 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.3s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 409 GetRequests, 324 SyntacticMatches, 41 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1039occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 25.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9947031077637034 AbsIntWeakeningRatio, 0.12073490813648294 AbsIntAvgWeakeningVarsNumRemoved, 50.0761154855643 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 178 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 556 NumberOfCodeBlocks, 556 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 552 ConstructedInterpolants, 0 QuantifiedInterpolants, 323261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 125/239 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown