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/Problem16_label08_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:44:46,690 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:44:46,694 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:44:46,706 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:44:46,706 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:44:46,707 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:44:46,708 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:44:46,711 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:44:46,713 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:44:46,714 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:44:46,715 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:44:46,716 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:44:46,717 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:44:46,718 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:44:46,722 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:44:46,723 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:44:46,724 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:44:46,729 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:44:46,731 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:44:46,736 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:44:46,738 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:44:46,743 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:44:46,748 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 18:44:46,748 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 18:44:46,748 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 18:44:46,750 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 18:44:46,751 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 18:44:46,754 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 18:44:46,755 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 18:44:46,756 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 18:44:46,756 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 18:44:46,757 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 18:44:46,757 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 18:44:46,757 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 18:44:46,761 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 18:44:46,762 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 18:44:46,762 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:44:46,790 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:44:46,791 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:44:46,791 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:44:46,792 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:44:46,793 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:44:46,793 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:44:46,793 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:44:46,793 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:44:46,793 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:44:46,794 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:44:46,794 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:44:46,794 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:44:46,795 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:44:46,795 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:44:46,795 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:44:46,796 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:44:46,796 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:44:46,796 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:44:46,796 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:44:46,796 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:44:46,797 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:44:46,797 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:44:46,797 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:44:46,797 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:44:46,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:44:46,798 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:44:46,799 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:44:46,800 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:44:46,800 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:44:46,800 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:44:46,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:44:46,800 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:44:46,801 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:44:46,801 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:44:46,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:44:46,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:44:46,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:44:46,873 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:44:46,874 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:44:46,874 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label08_false-unreach-call.c [2018-10-24 18:44:46,933 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3471b99fc/b001279bed4041f68502c3e19d6a081f/FLAGc50fa56fa [2018-10-24 18:44:47,671 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:44:47,672 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label08_false-unreach-call.c [2018-10-24 18:44:47,694 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3471b99fc/b001279bed4041f68502c3e19d6a081f/FLAGc50fa56fa [2018-10-24 18:44:47,714 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3471b99fc/b001279bed4041f68502c3e19d6a081f [2018-10-24 18:44:47,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:44:47,728 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:44:47,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:44:47,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:44:47,733 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:44:47,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:44:47" (1/1) ... [2018-10-24 18:44:47,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f32220e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:47, skipping insertion in model container [2018-10-24 18:44:47,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:44:47" (1/1) ... [2018-10-24 18:44:47,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:44:47,855 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:44:48,644 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:44:48,650 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:44:48,896 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:44:48,917 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:44:48,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48 WrapperNode [2018-10-24 18:44:48,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:44:48,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:44:48,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:44:48,920 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:44:48,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (1/1) ... [2018-10-24 18:44:48,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (1/1) ... [2018-10-24 18:44:49,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:44:49,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:44:49,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:44:49,234 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:44:49,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (1/1) ... [2018-10-24 18:44:49,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (1/1) ... [2018-10-24 18:44:49,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (1/1) ... [2018-10-24 18:44:49,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (1/1) ... [2018-10-24 18:44:49,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (1/1) ... [2018-10-24 18:44:49,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (1/1) ... [2018-10-24 18:44:49,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (1/1) ... [2018-10-24 18:44:49,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:44:49,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:44:49,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:44:49,392 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:44:49,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:44:49,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:44:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:44:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:44:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:44:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:44:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:44:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:44:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:44:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:44:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:44:55,787 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:44:55,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:44:55 BoogieIcfgContainer [2018-10-24 18:44:55,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:44:55,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:44:55,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:44:55,794 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:44:55,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:44:47" (1/3) ... [2018-10-24 18:44:55,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a3e47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:44:55, skipping insertion in model container [2018-10-24 18:44:55,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:44:48" (2/3) ... [2018-10-24 18:44:55,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8a3e47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:44:55, skipping insertion in model container [2018-10-24 18:44:55,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:44:55" (3/3) ... [2018-10-24 18:44:55,798 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label08_false-unreach-call.c [2018-10-24 18:44:55,807 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:44:55,817 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:44:55,835 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:44:55,878 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:44:55,879 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:44:55,879 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:44:55,879 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:44:55,879 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:44:55,880 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:44:55,880 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:44:55,880 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:44:55,913 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 18:44:55,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-24 18:44:55,921 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:44:55,922 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] [2018-10-24 18:44:55,925 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:44:55,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:44:55,932 INFO L82 PathProgramCache]: Analyzing trace with hash -2042869364, now seen corresponding path program 1 times [2018-10-24 18:44:55,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:44:55,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:44:55,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:44:55,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:44:55,988 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:44:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:44:56,346 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:44:56,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:44:56,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:44:56,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 18:44:56,464 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:44:56,479 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 18:44:56,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 18:44:56,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:44:56,521 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-24 18:45:02,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:45:02,752 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-24 18:45:02,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 18:45:02,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-10-24 18:45:02,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:45:02,783 INFO L225 Difference]: With dead ends: 1156 [2018-10-24 18:45:02,784 INFO L226 Difference]: Without dead ends: 744 [2018-10-24 18:45:02,796 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 18:45:02,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-24 18:45:02,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-24 18:45:02,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-24 18:45:02,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-10-24 18:45:02,914 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 24 [2018-10-24 18:45:02,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:45:02,914 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-10-24 18:45:02,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 18:45:02,915 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-10-24 18:45:02,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-24 18:45:02,921 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:45:02,922 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:45:02,922 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:45:02,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:45:02,922 INFO L82 PathProgramCache]: Analyzing trace with hash -2102381266, now seen corresponding path program 1 times [2018-10-24 18:45:02,923 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:45:02,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:45:02,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:45:02,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:45:02,925 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:45:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:45:03,282 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:45:03,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:45:03,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:45:03,283 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:45:03,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:45:03,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:45:03,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:45:03,286 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-10-24 18:45:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:45:15,560 INFO L93 Difference]: Finished difference Result 2960 states and 5492 transitions. [2018-10-24 18:45:15,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 18:45:15,561 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-10-24 18:45:15,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:45:15,589 INFO L225 Difference]: With dead ends: 2960 [2018-10-24 18:45:15,590 INFO L226 Difference]: Without dead ends: 2222 [2018-10-24 18:45:15,605 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 18:45:15,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2018-10-24 18:45:15,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 2169. [2018-10-24 18:45:15,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2169 states. [2018-10-24 18:45:15,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2169 states to 2169 states and 3669 transitions. [2018-10-24 18:45:15,716 INFO L78 Accepts]: Start accepts. Automaton has 2169 states and 3669 transitions. Word has length 100 [2018-10-24 18:45:15,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:45:15,717 INFO L481 AbstractCegarLoop]: Abstraction has 2169 states and 3669 transitions. [2018-10-24 18:45:15,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:45:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2169 states and 3669 transitions. [2018-10-24 18:45:15,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-24 18:45:15,721 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:45:15,722 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 18:45:15,722 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:45:15,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:45:15,722 INFO L82 PathProgramCache]: Analyzing trace with hash -830795674, now seen corresponding path program 1 times [2018-10-24 18:45:15,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:45:15,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:45:15,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:45:15,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:45:15,724 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:45:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:45:16,035 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:45:16,409 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:45:16,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:45:16,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:45:16,410 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:45:16,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:45:16,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:45:16,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:45:16,411 INFO L87 Difference]: Start difference. First operand 2169 states and 3669 transitions. Second operand 6 states. [2018-10-24 18:45:23,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:45:23,702 INFO L93 Difference]: Finished difference Result 7672 states and 13511 transitions. [2018-10-24 18:45:23,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:45:23,706 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-10-24 18:45:23,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:45:23,753 INFO L225 Difference]: With dead ends: 7672 [2018-10-24 18:45:23,753 INFO L226 Difference]: Without dead ends: 5509 [2018-10-24 18:45:23,785 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:45:23,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5509 states. [2018-10-24 18:45:23,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5509 to 5461. [2018-10-24 18:45:23,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5461 states. [2018-10-24 18:45:23,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5461 states to 5461 states and 8494 transitions. [2018-10-24 18:45:23,953 INFO L78 Accepts]: Start accepts. Automaton has 5461 states and 8494 transitions. Word has length 104 [2018-10-24 18:45:23,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:45:23,953 INFO L481 AbstractCegarLoop]: Abstraction has 5461 states and 8494 transitions. [2018-10-24 18:45:23,954 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:45:23,954 INFO L276 IsEmpty]: Start isEmpty. Operand 5461 states and 8494 transitions. [2018-10-24 18:45:23,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-24 18:45:23,958 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:45:23,958 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:45:23,959 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:45:23,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:45:23,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1219304098, now seen corresponding path program 1 times [2018-10-24 18:45:23,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:45:23,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:45:23,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:45:23,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:45:23,961 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:45:23,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:45:24,278 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:45:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:45:24,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:45:24,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:45:24,559 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:45:24,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:45:24,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:45:24,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:45:24,561 INFO L87 Difference]: Start difference. First operand 5461 states and 8494 transitions. Second operand 6 states. [2018-10-24 18:45:28,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:45:28,472 INFO L93 Difference]: Finished difference Result 12804 states and 21126 transitions. [2018-10-24 18:45:28,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:45:28,476 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-10-24 18:45:28,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:45:28,533 INFO L225 Difference]: With dead ends: 12804 [2018-10-24 18:45:28,533 INFO L226 Difference]: Without dead ends: 7349 [2018-10-24 18:45:28,570 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:45:28,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7349 states. [2018-10-24 18:45:28,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7349 to 7282. [2018-10-24 18:45:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7282 states. [2018-10-24 18:45:28,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7282 states to 7282 states and 11071 transitions. [2018-10-24 18:45:28,851 INFO L78 Accepts]: Start accepts. Automaton has 7282 states and 11071 transitions. Word has length 140 [2018-10-24 18:45:28,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:45:28,852 INFO L481 AbstractCegarLoop]: Abstraction has 7282 states and 11071 transitions. [2018-10-24 18:45:28,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:45:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7282 states and 11071 transitions. [2018-10-24 18:45:28,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-10-24 18:45:28,860 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:45:28,860 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:45:28,861 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:45:28,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:45:28,861 INFO L82 PathProgramCache]: Analyzing trace with hash 365770004, now seen corresponding path program 1 times [2018-10-24 18:45:28,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:45:28,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:45:28,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:45:28,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:45:28,863 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:45:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:45:29,210 WARN L179 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:45:29,551 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 34 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 18:45:29,552 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:45:29,552 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:45:29,553 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 191 with the following transitions: [2018-10-24 18:45:29,556 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [271], [273], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [720], [721], [725], [728], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 18:45:29,657 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:45:29,658 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:45:31,646 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:45:31,755 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:45:31,757 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 18:45:31,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:45:31,771 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:45:33,466 INFO L232 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 77.53% of their original sizes. [2018-10-24 18:45:33,466 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:45:33,907 INFO L413 sIntCurrentIteration]: We have 189 unified AI predicates [2018-10-24 18:45:33,907 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:45:33,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:45:33,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 18:45:33,909 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:45:33,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 18:45:33,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 18:45:33,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:45:33,910 INFO L87 Difference]: Start difference. First operand 7282 states and 11071 transitions. Second operand 7 states. [2018-10-24 18:46:36,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:46:36,577 INFO L93 Difference]: Finished difference Result 14898 states and 22629 transitions. [2018-10-24 18:46:36,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:46:36,578 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2018-10-24 18:46:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:46:36,621 INFO L225 Difference]: With dead ends: 14898 [2018-10-24 18:46:36,621 INFO L226 Difference]: Without dead ends: 7622 [2018-10-24 18:46:36,656 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 18:46:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7622 states. [2018-10-24 18:46:36,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7622 to 7620. [2018-10-24 18:46:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7620 states. [2018-10-24 18:46:36,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7620 states to 7620 states and 11418 transitions. [2018-10-24 18:46:36,882 INFO L78 Accepts]: Start accepts. Automaton has 7620 states and 11418 transitions. Word has length 190 [2018-10-24 18:46:36,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:46:36,883 INFO L481 AbstractCegarLoop]: Abstraction has 7620 states and 11418 transitions. [2018-10-24 18:46:36,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 18:46:36,883 INFO L276 IsEmpty]: Start isEmpty. Operand 7620 states and 11418 transitions. [2018-10-24 18:46:36,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-10-24 18:46:36,888 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:46:36,888 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:46:36,889 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:46:36,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:46:36,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1523269408, now seen corresponding path program 1 times [2018-10-24 18:46:36,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:46:36,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:36,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:46:36,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:46:36,893 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:46:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:46:37,188 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:46:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 35 proven. 14 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 18:46:37,640 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:46:37,640 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:46:37,641 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-10-24 18:46:37,641 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [271], [273], [276], [284], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [728], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 18:46:37,648 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:46:37,648 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:46:39,107 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:46:45,415 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:46:45,415 INFO L272 AbstractInterpreter]: Visited 100 different actions 291 times. Merged at 5 different actions 13 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 18:46:45,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:46:45,420 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:46:48,000 INFO L232 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 79.32% of their original sizes. [2018-10-24 18:46:48,000 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:47:05,159 INFO L413 sIntCurrentIteration]: We have 199 unified AI predicates [2018-10-24 18:47:05,160 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:47:05,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:47:05,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-10-24 18:47:05,161 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:47:05,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-24 18:47:05,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-24 18:47:05,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2018-10-24 18:47:05,162 INFO L87 Difference]: Start difference. First operand 7620 states and 11418 transitions. Second operand 22 states. Received shutdown request... [2018-10-24 18:48:32,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 18:48:32,798 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:48:32,803 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:48:32,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:48:32 BoogieIcfgContainer [2018-10-24 18:48:32,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:48:32,804 INFO L168 Benchmark]: Toolchain (without parser) took 225076.97 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -625.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-24 18:48:32,805 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 18:48:32,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1189.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 18:48:32,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 314.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -851.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-24 18:48:32,808 INFO L168 Benchmark]: Boogie Preprocessor took 156.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:48:32,809 INFO L168 Benchmark]: RCFGBuilder took 6397.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 244.4 MB). Peak memory consumption was 244.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:48:32,809 INFO L168 Benchmark]: TraceAbstraction took 217013.47 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.0 GB in the end (delta: -116.7 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 18:48:32,815 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1189.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 314.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -851.8 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6397.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 244.4 MB). Peak memory consumption was 244.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 217013.47 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.0 GB in the end (delta: -116.7 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: 58]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 58). Cancelled while BasicCegarLoop was constructing difference of abstraction (7620states) and FLOYD_HOARE automaton (currently 15 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (1100 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 216.9s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 180.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 933 SDtfs, 7771 SDslu, 987 SDs, 0 SdLazy, 11803 SolverSat, 2869 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 79.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 433 GetRequests, 362 SyntacticMatches, 14 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 21.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7620occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.9s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9943597788734497 AbsIntWeakeningRatio, 0.13402061855670103 AbsIntAvgWeakeningVarsNumRemoved, 616.5103092783505 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 170 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 758 NumberOfCodeBlocks, 758 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 752 ConstructedInterpolants, 0 QuantifiedInterpolants, 471039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 194/285 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown