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_label18_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 20:57:23,757 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 20:57:23,762 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 20:57:23,777 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 20:57:23,777 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 20:57:23,778 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 20:57:23,780 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 20:57:23,781 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 20:57:23,783 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 20:57:23,784 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 20:57:23,785 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 20:57:23,785 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 20:57:23,786 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 20:57:23,787 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 20:57:23,788 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 20:57:23,789 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 20:57:23,790 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 20:57:23,792 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 20:57:23,794 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 20:57:23,795 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 20:57:23,796 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 20:57:23,797 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 20:57:23,800 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 20:57:23,800 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 20:57:23,800 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 20:57:23,801 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 20:57:23,802 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 20:57:23,803 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 20:57:23,804 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 20:57:23,805 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 20:57:23,805 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 20:57:23,806 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 20:57:23,808 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 20:57:23,835 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 20:57:23,836 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 20:57:23,837 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 20:57:23,837 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 20:57:23,837 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 20:57:23,837 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 20:57:23,837 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 20:57:23,838 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 20:57:23,838 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 20:57:23,838 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 20:57:23,838 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 20:57:23,838 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 20:57:23,840 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 20:57:23,840 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 20:57:23,840 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 20:57:23,840 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 20:57:23,840 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 20:57:23,841 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 20:57:23,841 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 20:57:23,841 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 20:57:23,841 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 20:57:23,841 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 20:57:23,842 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 20:57:23,844 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 20:57:23,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 20:57:23,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 20:57:23,844 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 20:57:23,845 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 20:57:23,845 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 20:57:23,845 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 20:57:23,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 20:57:23,845 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 20:57:23,845 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 20:57:23,846 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 20:57:23,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 20:57:23,941 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 20:57:23,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 20:57:23,946 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 20:57:23,947 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 20:57:23,947 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label18_true-unreach-call.c [2018-10-24 20:57:24,008 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1a0c256a0/2055c3fb650c486890f4f5445796bf74/FLAG3d4e0f0f5 [2018-10-24 20:57:24,626 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 20:57:24,627 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label18_true-unreach-call.c [2018-10-24 20:57:24,650 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1a0c256a0/2055c3fb650c486890f4f5445796bf74/FLAG3d4e0f0f5 [2018-10-24 20:57:24,664 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1a0c256a0/2055c3fb650c486890f4f5445796bf74 [2018-10-24 20:57:24,674 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 20:57:24,676 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 20:57:24,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 20:57:24,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 20:57:24,681 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 20:57:24,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:57:24" (1/1) ... [2018-10-24 20:57:24,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b98b391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:24, skipping insertion in model container [2018-10-24 20:57:24,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:57:24" (1/1) ... [2018-10-24 20:57:24,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 20:57:24,778 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 20:57:25,267 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 20:57:25,272 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 20:57:25,412 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 20:57:25,432 INFO L193 MainTranslator]: Completed translation [2018-10-24 20:57:25,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25 WrapperNode [2018-10-24 20:57:25,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 20:57:25,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 20:57:25,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 20:57:25,434 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 20:57:25,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (1/1) ... [2018-10-24 20:57:25,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (1/1) ... [2018-10-24 20:57:25,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 20:57:25,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 20:57:25,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 20:57:25,636 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 20:57:25,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (1/1) ... [2018-10-24 20:57:25,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (1/1) ... [2018-10-24 20:57:25,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (1/1) ... [2018-10-24 20:57:25,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (1/1) ... [2018-10-24 20:57:25,691 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (1/1) ... [2018-10-24 20:57:25,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (1/1) ... [2018-10-24 20:57:25,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (1/1) ... [2018-10-24 20:57:25,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 20:57:25,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 20:57:25,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 20:57:25,738 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 20:57:25,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (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 20:57:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 20:57:25,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 20:57:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 20:57:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 20:57:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 20:57:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 20:57:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 20:57:25,815 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 20:57:28,987 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 20:57:28,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:57:28 BoogieIcfgContainer [2018-10-24 20:57:28,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 20:57:28,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 20:57:28,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 20:57:28,993 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 20:57:28,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:57:24" (1/3) ... [2018-10-24 20:57:28,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252960b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:57:28, skipping insertion in model container [2018-10-24 20:57:28,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:57:25" (2/3) ... [2018-10-24 20:57:28,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@252960b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:57:28, skipping insertion in model container [2018-10-24 20:57:28,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:57:28" (3/3) ... [2018-10-24 20:57:28,998 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label18_true-unreach-call.c [2018-10-24 20:57:29,008 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 20:57:29,017 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 20:57:29,035 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 20:57:29,081 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 20:57:29,082 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 20:57:29,082 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 20:57:29,082 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 20:57:29,082 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 20:57:29,083 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 20:57:29,083 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 20:57:29,083 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 20:57:29,112 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 20:57:29,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-24 20:57:29,123 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:57:29,124 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 20:57:29,126 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:57:29,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:57:29,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1094917127, now seen corresponding path program 1 times [2018-10-24 20:57:29,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:57:29,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:57:29,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:57:29,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:57:29,183 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:57:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:57:29,724 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 20:57:29,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 20:57:29,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 20:57:29,727 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:57:29,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 20:57:29,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 20:57:29,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 20:57:29,754 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 20:57:31,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:57:31,525 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 20:57:31,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 20:57:31,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2018-10-24 20:57:31,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:57:31,549 INFO L225 Difference]: With dead ends: 574 [2018-10-24 20:57:31,549 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 20:57:31,563 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 20:57:31,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 20:57:31,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 20:57:31,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 20:57:31,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 607 transitions. [2018-10-24 20:57:31,637 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 607 transitions. Word has length 65 [2018-10-24 20:57:31,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:57:31,638 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 607 transitions. [2018-10-24 20:57:31,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 20:57:31,638 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 607 transitions. [2018-10-24 20:57:31,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-24 20:57:31,647 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:57:31,648 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, 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] [2018-10-24 20:57:31,648 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:57:31,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:57:31,649 INFO L82 PathProgramCache]: Analyzing trace with hash -158476620, now seen corresponding path program 1 times [2018-10-24 20:57:31,649 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:57:31,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:57:31,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:57:31,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:57:31,651 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:57:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:57:32,050 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 20:57:32,051 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 20:57:32,051 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 20:57:32,052 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 154 with the following transitions: [2018-10-24 20:57:32,054 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], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [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], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 20:57:32,124 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 20:57:32,124 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 20:57:34,841 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 20:57:34,843 INFO L272 AbstractInterpreter]: Visited 92 different actions 92 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 20:57:34,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:57:34,866 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 20:57:37,486 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 74.65% of their original sizes. [2018-10-24 20:57:37,486 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 20:57:41,159 INFO L413 sIntCurrentIteration]: We have 152 unified AI predicates [2018-10-24 20:57:41,159 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 20:57:41,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 20:57:41,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-10-24 20:57:41,160 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:57:41,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-24 20:57:41,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-24 20:57:41,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-24 20:57:41,163 INFO L87 Difference]: Start difference. First operand 356 states and 607 transitions. Second operand 10 states. [2018-10-24 20:57:57,259 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 20:58:33,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 20:58:33,908 INFO L93 Difference]: Finished difference Result 855 states and 1478 transitions. [2018-10-24 20:58:33,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 20:58:33,908 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2018-10-24 20:58:33,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 20:58:33,913 INFO L225 Difference]: With dead ends: 855 [2018-10-24 20:58:33,913 INFO L226 Difference]: Without dead ends: 505 [2018-10-24 20:58:33,916 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 127 SyntacticMatches, 17 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-10-24 20:58:33,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-10-24 20:58:33,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 500. [2018-10-24 20:58:33,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 500 states. [2018-10-24 20:58:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 757 transitions. [2018-10-24 20:58:33,971 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 757 transitions. Word has length 153 [2018-10-24 20:58:33,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 20:58:33,972 INFO L481 AbstractCegarLoop]: Abstraction has 500 states and 757 transitions. [2018-10-24 20:58:33,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-24 20:58:33,972 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 757 transitions. [2018-10-24 20:58:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-10-24 20:58:33,978 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 20:58:33,978 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, 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, 1, 1, 1, 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 20:58:33,979 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 20:58:33,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:58:33,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1560963418, now seen corresponding path program 1 times [2018-10-24 20:58:33,979 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 20:58:33,980 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:58:33,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 20:58:33,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 20:58:33,981 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 20:58:34,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 20:58:34,336 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 20:58:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-10-24 20:58:34,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 20:58:34,406 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 20:58:34,406 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-10-24 20:58:34,406 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], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [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], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 20:58:34,412 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 20:58:34,413 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 20:58:35,612 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 20:58:47,852 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 20:58:47,853 INFO L272 AbstractInterpreter]: Visited 96 different actions 546 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 20:58:47,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 20:58:47,861 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 20:58:50,476 INFO L232 lantSequenceWeakener]: Weakened 73 states. On average, predicates are now at 76.38% of their original sizes. [2018-10-24 20:58:50,476 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 20:58:55,578 INFO L413 sIntCurrentIteration]: We have 223 unified AI predicates [2018-10-24 20:58:55,579 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 20:58:55,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 20:58:55,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [4] total 18 [2018-10-24 20:58:55,579 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 20:58:55,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 20:58:55,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 20:58:55,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-10-24 20:58:55,581 INFO L87 Difference]: Start difference. First operand 500 states and 757 transitions. Second operand 16 states. [2018-10-24 21:01:16,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:01:16,098 INFO L93 Difference]: Finished difference Result 1233 states and 2047 transitions. [2018-10-24 21:01:16,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-24 21:01:16,099 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 224 [2018-10-24 21:01:16,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:01:16,105 INFO L225 Difference]: With dead ends: 1233 [2018-10-24 21:01:16,106 INFO L226 Difference]: Without dead ends: 883 [2018-10-24 21:01:16,108 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 230 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2018-10-24 21:01:16,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2018-10-24 21:01:16,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 800. [2018-10-24 21:01:16,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 800 states. [2018-10-24 21:01:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1087 transitions. [2018-10-24 21:01:16,289 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1087 transitions. Word has length 224 [2018-10-24 21:01:16,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:01:16,290 INFO L481 AbstractCegarLoop]: Abstraction has 800 states and 1087 transitions. [2018-10-24 21:01:16,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-24 21:01:16,290 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1087 transitions. [2018-10-24 21:01:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-10-24 21:01:16,297 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:01:16,297 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:01:16,298 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:01:16,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:01:16,298 INFO L82 PathProgramCache]: Analyzing trace with hash -848982305, now seen corresponding path program 1 times [2018-10-24 21:01:16,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:01:16,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:01:16,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:01:16,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:01:16,300 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:01:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:01:16,598 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:01:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 117 proven. 6 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 21:01:17,513 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:01:17,513 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:01:17,513 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 234 with the following transitions: [2018-10-24 21:01:17,514 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], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [421], [423], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 21:01:17,519 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:01:17,519 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:01:19,088 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 21:01:21,510 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 21:01:21,511 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 21:01:21,512 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 21:01:21,512 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:01:21,512 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 21:01:21,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:01:21,523 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 21:01:21,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:01:21,638 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 21:01:21,659 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 21:01:21,860 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 21:01:21,861 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:01:21,866 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:01:21,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:01:21 BoogieIcfgContainer [2018-10-24 21:01:21,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:01:21,868 INFO L168 Benchmark]: Toolchain (without parser) took 237192.55 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 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-10-24 21:01:21,869 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 21:01:21,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.32 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:01:21,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 201.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -825.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:01:21,871 INFO L168 Benchmark]: Boogie Preprocessor took 100.82 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:01:21,872 INFO L168 Benchmark]: RCFGBuilder took 3251.51 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 128.8 MB). Peak memory consumption was 128.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:01:21,873 INFO L168 Benchmark]: TraceAbstraction took 232877.23 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -815.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 21:01:21,877 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 756.32 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 201.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -825.9 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.82 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3251.51 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 128.8 MB). Peak memory consumption was 128.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 232877.23 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.9 GB in the end (delta: -815.5 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 178]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 178). Cancelled while BasicCegarLoop was analyzing trace of length 234 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 232.7s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 195.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 515 SDtfs, 1554 SDslu, 306 SDs, 0 SdLazy, 2524 SolverSat, 589 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 105.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 391 GetRequests, 338 SyntacticMatches, 19 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 10.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=800occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 20.2s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9946183574879227 AbsIntWeakeningRatio, 0.12266666666666666 AbsIntAvgWeakeningVarsNumRemoved, 36.59466666666667 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 88 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 442 NumberOfCodeBlocks, 442 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 439 ConstructedInterpolants, 0 QuantifiedInterpolants, 259239 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 83/245 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown