java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 16:33:54,728 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 16:33:54,730 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 16:33:54,746 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 16:33:54,746 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 16:33:54,747 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 16:33:54,750 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 16:33:54,753 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 16:33:54,756 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 16:33:54,757 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 16:33:54,759 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 16:33:54,760 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 16:33:54,761 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 16:33:54,762 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 16:33:54,763 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 16:33:54,766 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 16:33:54,767 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 16:33:54,775 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 16:33:54,780 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 16:33:54,783 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 16:33:54,785 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 16:33:54,786 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 16:33:54,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 16:33:54,789 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 16:33:54,789 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 16:33:54,790 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 16:33:54,791 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 16:33:54,791 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 16:33:54,792 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 16:33:54,793 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 16:33:54,793 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 16:33:54,794 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 16:33:54,794 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 16:33:54,794 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 16:33:54,795 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 16:33:54,796 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 16:33:54,796 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 16:33:54,815 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 16:33:54,815 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 16:33:54,816 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 16:33:54,816 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 16:33:54,817 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 16:33:54,817 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 16:33:54,818 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 16:33:54,818 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 16:33:54,818 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 16:33:54,818 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 16:33:54,818 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 16:33:54,819 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 16:33:54,819 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 16:33:54,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 16:33:54,821 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 16:33:54,821 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 16:33:54,821 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 16:33:54,821 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 16:33:54,821 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 16:33:54,822 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 16:33:54,822 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 16:33:54,822 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 16:33:54,822 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 16:33:54,822 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 16:33:54,824 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 16:33:54,824 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 16:33:54,824 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 16:33:54,824 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 16:33:54,825 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 16:33:54,825 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 16:33:54,825 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 16:33:54,825 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 16:33:54,825 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 16:33:54,826 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 16:33:54,826 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 16:33:54,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 16:33:54,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 16:33:54,892 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 16:33:54,894 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 16:33:54,894 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 16:33:54,895 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c [2018-11-12 16:33:54,963 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/238f7edbf/425b2b043f604031b43f539e92668718/FLAGd2776884c [2018-11-12 16:33:55,671 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 16:33:55,674 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label14_false-unreach-call.c [2018-11-12 16:33:55,698 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/238f7edbf/425b2b043f604031b43f539e92668718/FLAGd2776884c [2018-11-12 16:33:55,716 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/238f7edbf/425b2b043f604031b43f539e92668718 [2018-11-12 16:33:55,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 16:33:55,730 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 16:33:55,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 16:33:55,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 16:33:55,737 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 16:33:55,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:33:55" (1/1) ... [2018-11-12 16:33:55,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425d5bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:55, skipping insertion in model container [2018-11-12 16:33:55,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:33:55" (1/1) ... [2018-11-12 16:33:55,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 16:33:55,856 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 16:33:56,645 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:33:56,651 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 16:33:56,949 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 16:33:56,973 INFO L193 MainTranslator]: Completed translation [2018-11-12 16:33:56,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56 WrapperNode [2018-11-12 16:33:56,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 16:33:56,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 16:33:56,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 16:33:56,975 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 16:33:57,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (1/1) ... [2018-11-12 16:33:57,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (1/1) ... [2018-11-12 16:33:57,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 16:33:57,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 16:33:57,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 16:33:57,195 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 16:33:57,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (1/1) ... [2018-11-12 16:33:57,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (1/1) ... [2018-11-12 16:33:57,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (1/1) ... [2018-11-12 16:33:57,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (1/1) ... [2018-11-12 16:33:57,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (1/1) ... [2018-11-12 16:33:57,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (1/1) ... [2018-11-12 16:33:57,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (1/1) ... [2018-11-12 16:33:57,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 16:33:57,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 16:33:57,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 16:33:57,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 16:33:57,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-12 16:33:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 16:33:57,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 16:33:57,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 16:33:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 16:33:57,407 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 16:33:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 16:33:57,407 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 16:33:57,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 16:33:57,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 16:33:57,408 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 16:33:57,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 16:34:02,702 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 16:34:02,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:34:02 BoogieIcfgContainer [2018-11-12 16:34:02,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 16:34:02,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 16:34:02,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 16:34:02,707 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 16:34:02,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:33:55" (1/3) ... [2018-11-12 16:34:02,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcfc29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:34:02, skipping insertion in model container [2018-11-12 16:34:02,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:33:56" (2/3) ... [2018-11-12 16:34:02,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcfc29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:34:02, skipping insertion in model container [2018-11-12 16:34:02,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:34:02" (3/3) ... [2018-11-12 16:34:02,711 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label14_false-unreach-call.c [2018-11-12 16:34:02,721 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 16:34:02,730 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 16:34:02,745 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 16:34:02,787 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 16:34:02,788 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 16:34:02,788 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 16:34:02,788 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 16:34:02,788 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 16:34:02,788 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 16:34:02,789 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 16:34:02,789 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 16:34:02,835 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-12 16:34:02,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-12 16:34:02,842 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:34:02,843 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] [2018-11-12 16:34:02,846 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:34:02,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:34:02,852 INFO L82 PathProgramCache]: Analyzing trace with hash 250004580, now seen corresponding path program 1 times [2018-11-12 16:34:02,854 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:34:02,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:34:02,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:34:02,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:34:02,907 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:34:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:34:03,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:34:03,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:34:03,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 16:34:03,323 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:34:03,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 16:34:03,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 16:34:03,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:34:03,349 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-12 16:34:09,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:34:09,761 INFO L93 Difference]: Finished difference Result 1514 states and 2777 transitions. [2018-11-12 16:34:09,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 16:34:09,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-12 16:34:09,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:34:09,794 INFO L225 Difference]: With dead ends: 1514 [2018-11-12 16:34:09,795 INFO L226 Difference]: Without dead ends: 1070 [2018-11-12 16:34:09,807 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:34:09,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-11-12 16:34:09,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2018-11-12 16:34:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-11-12 16:34:09,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1675 transitions. [2018-11-12 16:34:09,960 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1675 transitions. Word has length 22 [2018-11-12 16:34:09,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:34:09,960 INFO L480 AbstractCegarLoop]: Abstraction has 1068 states and 1675 transitions. [2018-11-12 16:34:09,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 16:34:09,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1675 transitions. [2018-11-12 16:34:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-12 16:34:09,966 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:34:09,966 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-12 16:34:09,966 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:34:09,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:34:09,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1633554799, now seen corresponding path program 1 times [2018-11-12 16:34:09,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:34:09,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:34:09,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:34:09,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:34:09,969 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:34:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:34:10,273 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 16:34:10,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 16:34:10,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 16:34:10,274 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:34:10,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 16:34:10,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 16:34:10,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:34:10,276 INFO L87 Difference]: Start difference. First operand 1068 states and 1675 transitions. Second operand 4 states. [2018-11-12 16:34:15,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:34:15,498 INFO L93 Difference]: Finished difference Result 3986 states and 6446 transitions. [2018-11-12 16:34:15,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 16:34:15,498 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2018-11-12 16:34:15,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:34:15,523 INFO L225 Difference]: With dead ends: 3986 [2018-11-12 16:34:15,523 INFO L226 Difference]: Without dead ends: 2924 [2018-11-12 16:34:15,534 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 16:34:15,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2018-11-12 16:34:15,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 2922. [2018-11-12 16:34:15,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2922 states. [2018-11-12 16:34:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2922 states to 2922 states and 4197 transitions. [2018-11-12 16:34:15,648 INFO L78 Accepts]: Start accepts. Automaton has 2922 states and 4197 transitions. Word has length 92 [2018-11-12 16:34:15,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:34:15,649 INFO L480 AbstractCegarLoop]: Abstraction has 2922 states and 4197 transitions. [2018-11-12 16:34:15,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 16:34:15,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2922 states and 4197 transitions. [2018-11-12 16:34:15,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-11-12 16:34:15,672 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:34:15,676 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-12 16:34:15,677 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:34:15,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:34:15,677 INFO L82 PathProgramCache]: Analyzing trace with hash 264602961, now seen corresponding path program 1 times [2018-11-12 16:34:15,677 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:34:15,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:34:15,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:34:15,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:34:15,679 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:34:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:34:16,587 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 53 proven. 222 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-12 16:34:16,587 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:34:16,588 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:34:16,588 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-11-12 16:34:16,590 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 16:34:16,641 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:34:16,642 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:34:17,260 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:34:19,000 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:34:19,002 INFO L272 AbstractInterpreter]: Visited 105 different actions 699 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Performed 12113 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12113 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:34:19,040 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:34:19,040 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:34:20,519 INFO L227 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 77.97% of their original sizes. [2018-11-12 16:34:20,519 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:34:24,845 INFO L415 sIntCurrentIteration]: We unified 278 AI predicates to 278 [2018-11-12 16:34:24,845 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:34:24,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:34:24,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-11-12 16:34:24,847 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:34:24,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-12 16:34:24,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-12 16:34:24,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=359, Unknown=0, NotChecked=0, Total=462 [2018-11-12 16:34:24,849 INFO L87 Difference]: Start difference. First operand 2922 states and 4197 transitions. Second operand 22 states. [2018-11-12 16:35:14,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:35:14,862 INFO L93 Difference]: Finished difference Result 8379 states and 11362 transitions. [2018-11-12 16:35:14,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-12 16:35:14,863 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 279 [2018-11-12 16:35:14,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:35:14,898 INFO L225 Difference]: With dead ends: 8379 [2018-11-12 16:35:14,898 INFO L226 Difference]: Without dead ends: 5463 [2018-11-12 16:35:14,916 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 297 GetRequests, 210 SyntacticMatches, 49 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=328, Invalid=1232, Unknown=0, NotChecked=0, Total=1560 [2018-11-12 16:35:14,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5463 states. [2018-11-12 16:35:15,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5463 to 4740. [2018-11-12 16:35:15,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4740 states. [2018-11-12 16:35:15,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4740 states to 4740 states and 6085 transitions. [2018-11-12 16:35:15,092 INFO L78 Accepts]: Start accepts. Automaton has 4740 states and 6085 transitions. Word has length 279 [2018-11-12 16:35:15,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:35:15,096 INFO L480 AbstractCegarLoop]: Abstraction has 4740 states and 6085 transitions. [2018-11-12 16:35:15,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-12 16:35:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 4740 states and 6085 transitions. [2018-11-12 16:35:15,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2018-11-12 16:35:15,111 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:35:15,111 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:35:15,112 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:35:15,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:35:15,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1933733052, now seen corresponding path program 1 times [2018-11-12 16:35:15,113 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:35:15,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:35:15,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:35:15,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:35:15,114 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:35:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:35:16,593 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-12 16:35:16,593 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:35:16,593 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:35:16,593 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 379 with the following transitions: [2018-11-12 16:35:16,594 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 16:35:16,606 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:35:16,607 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:35:16,920 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:35:17,175 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:35:17,175 INFO L272 AbstractInterpreter]: Visited 283 different actions 560 times. Merged at 5 different actions 5 times. Never widened. Performed 11303 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11303 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:35:17,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:35:17,182 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:35:17,863 INFO L227 lantSequenceWeakener]: Weakened 87 states. On average, predicates are now at 80.57% of their original sizes. [2018-11-12 16:35:17,863 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:35:18,297 INFO L415 sIntCurrentIteration]: We unified 377 AI predicates to 377 [2018-11-12 16:35:18,297 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:35:18,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:35:18,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2018-11-12 16:35:18,298 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:35:18,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-12 16:35:18,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-12 16:35:18,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2018-11-12 16:35:18,299 INFO L87 Difference]: Start difference. First operand 4740 states and 6085 transitions. Second operand 16 states. [2018-11-12 16:35:34,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:35:34,317 INFO L93 Difference]: Finished difference Result 8808 states and 11584 transitions. [2018-11-12 16:35:34,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 16:35:34,317 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 378 [2018-11-12 16:35:34,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:35:34,349 INFO L225 Difference]: With dead ends: 8808 [2018-11-12 16:35:34,349 INFO L226 Difference]: Without dead ends: 5892 [2018-11-12 16:35:34,363 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 384 GetRequests, 352 SyntacticMatches, 11 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=383, Unknown=0, NotChecked=0, Total=506 [2018-11-12 16:35:34,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2018-11-12 16:35:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5887. [2018-11-12 16:35:34,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5887 states. [2018-11-12 16:35:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 7313 transitions. [2018-11-12 16:35:34,503 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 7313 transitions. Word has length 378 [2018-11-12 16:35:34,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:35:34,504 INFO L480 AbstractCegarLoop]: Abstraction has 5887 states and 7313 transitions. [2018-11-12 16:35:34,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-12 16:35:34,504 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 7313 transitions. [2018-11-12 16:35:34,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2018-11-12 16:35:34,518 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:35:34,518 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:35:34,519 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:35:34,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:35:34,519 INFO L82 PathProgramCache]: Analyzing trace with hash -929352187, now seen corresponding path program 1 times [2018-11-12 16:35:34,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:35:34,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:35:34,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:35:34,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:35:34,521 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:35:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:35:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 144 proven. 154 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 16:35:36,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:35:36,196 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:35:36,196 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 475 with the following transitions: [2018-11-12 16:35:36,197 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 16:35:36,204 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:35:36,204 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:35:36,268 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:35:37,533 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:35:37,533 INFO L272 AbstractInterpreter]: Visited 284 different actions 1128 times. Merged at 7 different actions 25 times. Never widened. Performed 23017 root evaluator evaluations with a maximum evaluation depth of 6. Performed 23017 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 16:35:37,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:35:37,539 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:35:37,992 INFO L227 lantSequenceWeakener]: Weakened 471 states. On average, predicates are now at 79.99% of their original sizes. [2018-11-12 16:35:37,992 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:35:38,174 INFO L415 sIntCurrentIteration]: We unified 473 AI predicates to 473 [2018-11-12 16:35:38,174 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:35:38,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:35:38,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 18 [2018-11-12 16:35:38,175 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:35:38,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 16:35:38,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 16:35:38,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-12 16:35:38,176 INFO L87 Difference]: Start difference. First operand 5887 states and 7313 transitions. Second operand 10 states. [2018-11-12 16:35:47,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:35:47,857 INFO L93 Difference]: Finished difference Result 10386 states and 13470 transitions. [2018-11-12 16:35:47,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 16:35:47,858 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 474 [2018-11-12 16:35:47,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:35:47,887 INFO L225 Difference]: With dead ends: 10386 [2018-11-12 16:35:47,887 INFO L226 Difference]: Without dead ends: 7470 [2018-11-12 16:35:47,900 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 480 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-12 16:35:47,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7470 states. [2018-11-12 16:35:48,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7470 to 7456. [2018-11-12 16:35:48,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7456 states. [2018-11-12 16:35:48,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7456 states to 7456 states and 9010 transitions. [2018-11-12 16:35:48,067 INFO L78 Accepts]: Start accepts. Automaton has 7456 states and 9010 transitions. Word has length 474 [2018-11-12 16:35:48,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:35:48,068 INFO L480 AbstractCegarLoop]: Abstraction has 7456 states and 9010 transitions. [2018-11-12 16:35:48,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 16:35:48,068 INFO L276 IsEmpty]: Start isEmpty. Operand 7456 states and 9010 transitions. [2018-11-12 16:35:48,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2018-11-12 16:35:48,089 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:35:48,090 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:35:48,090 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:35:48,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:35:48,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1156461210, now seen corresponding path program 1 times [2018-11-12 16:35:48,091 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:35:48,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:35:48,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:35:48,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:35:48,093 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:35:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:35:49,048 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 56 proven. 181 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-12 16:35:49,048 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:35:49,048 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:35:49,049 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 491 with the following transitions: [2018-11-12 16:35:49,049 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 16:35:49,054 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:35:49,054 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:35:49,217 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:35:50,099 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:35:50,099 INFO L272 AbstractInterpreter]: Visited 284 different actions 1123 times. Merged at 7 different actions 20 times. Never widened. Performed 18320 root evaluator evaluations with a maximum evaluation depth of 6. Performed 18320 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 16:35:50,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:35:50,117 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:35:51,150 INFO L227 lantSequenceWeakener]: Weakened 487 states. On average, predicates are now at 79.96% of their original sizes. [2018-11-12 16:35:51,151 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:35:51,372 INFO L415 sIntCurrentIteration]: We unified 489 AI predicates to 489 [2018-11-12 16:35:51,372 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:35:51,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:35:51,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2018-11-12 16:35:51,373 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:35:51,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 16:35:51,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 16:35:51,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 16:35:51,374 INFO L87 Difference]: Start difference. First operand 7456 states and 9010 transitions. Second operand 11 states. [2018-11-12 16:36:30,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:36:30,296 INFO L93 Difference]: Finished difference Result 13225 states and 16793 transitions. [2018-11-12 16:36:30,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-12 16:36:30,296 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 490 [2018-11-12 16:36:30,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:36:30,327 INFO L225 Difference]: With dead ends: 13225 [2018-11-12 16:36:30,327 INFO L226 Difference]: Without dead ends: 8217 [2018-11-12 16:36:30,344 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 501 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2018-11-12 16:36:30,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8217 states. [2018-11-12 16:36:30,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8217 to 8188. [2018-11-12 16:36:30,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8188 states. [2018-11-12 16:36:30,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8188 states to 8188 states and 10098 transitions. [2018-11-12 16:36:30,514 INFO L78 Accepts]: Start accepts. Automaton has 8188 states and 10098 transitions. Word has length 490 [2018-11-12 16:36:30,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:36:30,516 INFO L480 AbstractCegarLoop]: Abstraction has 8188 states and 10098 transitions. [2018-11-12 16:36:30,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 16:36:30,516 INFO L276 IsEmpty]: Start isEmpty. Operand 8188 states and 10098 transitions. [2018-11-12 16:36:30,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2018-11-12 16:36:30,540 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:36:30,541 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:36:30,541 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:36:30,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:36:30,542 INFO L82 PathProgramCache]: Analyzing trace with hash -82211912, now seen corresponding path program 1 times [2018-11-12 16:36:30,542 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:36:30,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:36:30,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:36:30,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:36:30,543 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:36:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:36:31,423 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 237 proven. 80 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-11-12 16:36:31,423 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:36:31,423 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:36:31,424 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 574 with the following transitions: [2018-11-12 16:36:31,424 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [625], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 16:36:31,429 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:36:31,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:36:31,656 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:36:34,422 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 16:36:34,422 INFO L272 AbstractInterpreter]: Visited 286 different actions 1998 times. Merged at 9 different actions 65 times. Widened at 1 different actions 2 times. Performed 33521 root evaluator evaluations with a maximum evaluation depth of 6. Performed 33521 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 16 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 16:36:34,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:36:34,430 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 16:36:34,430 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:36:34,431 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-12 16:36:34,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:36:34,440 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 16:36:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:36:34,688 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 16:36:35,330 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 454 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-11-12 16:36:35,331 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 16:36:36,194 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 237 proven. 80 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2018-11-12 16:36:36,229 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 16:36:36,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-12 16:36:36,230 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 16:36:36,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-12 16:36:36,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-12 16:36:36,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 16:36:36,232 INFO L87 Difference]: Start difference. First operand 8188 states and 10098 transitions. Second operand 9 states. [2018-11-12 16:36:44,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:36:44,821 INFO L93 Difference]: Finished difference Result 18638 states and 25042 transitions. [2018-11-12 16:36:44,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 16:36:44,823 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 573 [2018-11-12 16:36:44,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:36:44,867 INFO L225 Difference]: With dead ends: 18638 [2018-11-12 16:36:44,867 INFO L226 Difference]: Without dead ends: 13499 [2018-11-12 16:36:44,897 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1175 GetRequests, 1153 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2018-11-12 16:36:44,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13499 states. [2018-11-12 16:36:45,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13499 to 13381. [2018-11-12 16:36:45,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13381 states. [2018-11-12 16:36:45,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13381 states to 13381 states and 16255 transitions. [2018-11-12 16:36:45,161 INFO L78 Accepts]: Start accepts. Automaton has 13381 states and 16255 transitions. Word has length 573 [2018-11-12 16:36:45,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:36:45,162 INFO L480 AbstractCegarLoop]: Abstraction has 13381 states and 16255 transitions. [2018-11-12 16:36:45,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-12 16:36:45,163 INFO L276 IsEmpty]: Start isEmpty. Operand 13381 states and 16255 transitions. [2018-11-12 16:36:45,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2018-11-12 16:36:45,186 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:36:45,187 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:36:45,187 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:36:45,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:36:45,188 INFO L82 PathProgramCache]: Analyzing trace with hash 223064570, now seen corresponding path program 1 times [2018-11-12 16:36:45,188 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:36:45,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:36:45,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:36:45,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:36:45,189 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:36:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:36:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 14 proven. 37 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-11-12 16:36:45,913 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:36:45,913 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:36:45,914 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 573 with the following transitions: [2018-11-12 16:36:45,914 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1167], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 16:36:45,919 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:36:45,919 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:36:46,098 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:36:48,051 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 16:36:48,051 INFO L272 AbstractInterpreter]: Visited 285 different actions 1699 times. Merged at 8 different actions 47 times. Widened at 1 different actions 1 times. Performed 28019 root evaluator evaluations with a maximum evaluation depth of 6. Performed 28019 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 16:36:48,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:36:48,056 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 16:36:48,056 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:36:48,056 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 16:36:48,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:36:48,065 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 16:36:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:36:48,244 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 16:36:53,807 WARN L179 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2018-11-12 16:36:54,224 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 14 proven. 37 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-11-12 16:36:54,224 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 16:36:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2018-11-12 16:36:54,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-12 16:36:54,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-11-12 16:36:54,547 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:36:54,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:36:54,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:36:54,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=47, Unknown=2, NotChecked=0, Total=72 [2018-11-12 16:36:54,549 INFO L87 Difference]: Start difference. First operand 13381 states and 16255 transitions. Second operand 3 states. [2018-11-12 16:36:57,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:36:57,253 INFO L93 Difference]: Finished difference Result 23791 states and 31093 transitions. [2018-11-12 16:36:57,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:36:57,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 572 [2018-11-12 16:36:57,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:36:57,311 INFO L225 Difference]: With dead ends: 23791 [2018-11-12 16:36:57,311 INFO L226 Difference]: Without dead ends: 15586 [2018-11-12 16:36:57,337 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1156 GetRequests, 1145 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=23, Invalid=47, Unknown=2, NotChecked=0, Total=72 [2018-11-12 16:36:57,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15586 states. [2018-11-12 16:36:57,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15586 to 15583. [2018-11-12 16:36:57,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15583 states. [2018-11-12 16:36:57,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15583 states to 15583 states and 19302 transitions. [2018-11-12 16:36:57,626 INFO L78 Accepts]: Start accepts. Automaton has 15583 states and 19302 transitions. Word has length 572 [2018-11-12 16:36:57,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:36:57,627 INFO L480 AbstractCegarLoop]: Abstraction has 15583 states and 19302 transitions. [2018-11-12 16:36:57,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:36:57,627 INFO L276 IsEmpty]: Start isEmpty. Operand 15583 states and 19302 transitions. [2018-11-12 16:36:57,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2018-11-12 16:36:57,648 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:36:57,648 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:36:57,649 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:36:57,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:36:57,649 INFO L82 PathProgramCache]: Analyzing trace with hash -191103079, now seen corresponding path program 1 times [2018-11-12 16:36:57,649 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:36:57,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:36:57,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:36:57,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:36:57,650 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:36:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:36:58,368 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 361 proven. 2 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-11-12 16:36:58,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:36:58,369 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:36:58,369 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 611 with the following transitions: [2018-11-12 16:36:58,369 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [710], [711], [715], [719], [722], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 16:36:58,374 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:36:58,374 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:36:58,680 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:37:01,104 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 16:37:01,104 INFO L272 AbstractInterpreter]: Visited 286 different actions 2282 times. Merged at 9 different actions 76 times. Widened at 1 different actions 3 times. Performed 39622 root evaluator evaluations with a maximum evaluation depth of 6. Performed 39622 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 19 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 16:37:01,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:37:01,111 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 16:37:01,111 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:37:01,111 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 16:37:01,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:37:01,121 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 16:37:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:37:01,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 16:37:01,712 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 361 proven. 2 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-11-12 16:37:01,712 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 16:37:02,021 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 361 proven. 2 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-11-12 16:37:02,041 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 16:37:02,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2018-11-12 16:37:02,042 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 16:37:02,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 16:37:02,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 16:37:02,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-12 16:37:02,043 INFO L87 Difference]: Start difference. First operand 15583 states and 19302 transitions. Second operand 6 states. [2018-11-12 16:37:08,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:37:08,243 INFO L93 Difference]: Finished difference Result 35769 states and 49450 transitions. [2018-11-12 16:37:08,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-12 16:37:08,246 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 610 [2018-11-12 16:37:08,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:37:08,346 INFO L225 Difference]: With dead ends: 35769 [2018-11-12 16:37:08,346 INFO L226 Difference]: Without dead ends: 25366 [2018-11-12 16:37:08,378 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1232 GetRequests, 1221 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-11-12 16:37:08,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25366 states. [2018-11-12 16:37:08,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25366 to 24987. [2018-11-12 16:37:08,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24987 states. [2018-11-12 16:37:08,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24987 states to 24987 states and 31371 transitions. [2018-11-12 16:37:08,908 INFO L78 Accepts]: Start accepts. Automaton has 24987 states and 31371 transitions. Word has length 610 [2018-11-12 16:37:08,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:37:08,909 INFO L480 AbstractCegarLoop]: Abstraction has 24987 states and 31371 transitions. [2018-11-12 16:37:08,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 16:37:08,909 INFO L276 IsEmpty]: Start isEmpty. Operand 24987 states and 31371 transitions. [2018-11-12 16:37:08,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 672 [2018-11-12 16:37:08,947 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:37:08,947 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:37:08,947 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:37:08,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:37:08,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1002660393, now seen corresponding path program 1 times [2018-11-12 16:37:08,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:37:08,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:37:08,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:37:08,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:37:08,949 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:37:09,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:37:10,422 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 461 proven. 43 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-11-12 16:37:10,423 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:37:10,423 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:37:10,423 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 672 with the following transitions: [2018-11-12 16:37:10,424 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1167], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 16:37:10,428 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:37:10,428 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:37:10,601 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:37:12,033 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 16:37:12,033 INFO L272 AbstractInterpreter]: Visited 286 different actions 1714 times. Merged at 9 different actions 56 times. Widened at 1 different actions 2 times. Performed 27818 root evaluator evaluations with a maximum evaluation depth of 6. Performed 27818 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 13 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-12 16:37:12,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:37:12,045 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 16:37:12,045 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:37:12,045 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 16:37:12,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:37:12,057 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 16:37:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:37:12,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 16:37:13,134 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 34 [2018-11-12 16:37:16,425 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 387 proven. 117 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2018-11-12 16:37:16,425 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 16:37:16,723 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-11-12 16:37:16,947 WARN L179 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2018-11-12 16:37:17,124 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 626 trivial. 0 not checked. [2018-11-12 16:37:17,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-12 16:37:17,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [12, 9] total 20 [2018-11-12 16:37:17,145 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:37:17,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 16:37:17,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 16:37:17,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=315, Unknown=2, NotChecked=0, Total=380 [2018-11-12 16:37:17,147 INFO L87 Difference]: Start difference. First operand 24987 states and 31371 transitions. Second operand 3 states. [2018-11-12 16:37:20,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 16:37:20,190 INFO L93 Difference]: Finished difference Result 64909 states and 85909 transitions. [2018-11-12 16:37:20,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 16:37:20,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 671 [2018-11-12 16:37:20,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 16:37:20,334 INFO L225 Difference]: With dead ends: 64909 [2018-11-12 16:37:20,335 INFO L226 Difference]: Without dead ends: 43287 [2018-11-12 16:37:20,406 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1354 GetRequests, 1332 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=63, Invalid=315, Unknown=2, NotChecked=0, Total=380 [2018-11-12 16:37:20,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43287 states. [2018-11-12 16:37:21,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43287 to 42683. [2018-11-12 16:37:21,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42683 states. [2018-11-12 16:37:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42683 states to 42683 states and 54831 transitions. [2018-11-12 16:37:21,171 INFO L78 Accepts]: Start accepts. Automaton has 42683 states and 54831 transitions. Word has length 671 [2018-11-12 16:37:21,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 16:37:21,172 INFO L480 AbstractCegarLoop]: Abstraction has 42683 states and 54831 transitions. [2018-11-12 16:37:21,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 16:37:21,172 INFO L276 IsEmpty]: Start isEmpty. Operand 42683 states and 54831 transitions. [2018-11-12 16:37:21,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2018-11-12 16:37:21,283 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 16:37:21,283 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 16:37:21,284 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 16:37:21,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:37:21,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1138028862, now seen corresponding path program 1 times [2018-11-12 16:37:21,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 16:37:21,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:37:21,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 16:37:21,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 16:37:21,285 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 16:37:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 16:37:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 499 proven. 2 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-11-12 16:37:22,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 16:37:22,762 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 16:37:22,762 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 735 with the following transitions: [2018-11-12 16:37:22,762 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [149], [151], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [857], [862], [864], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1175], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 16:37:22,767 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 16:37:22,767 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 16:37:22,928 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 16:37:23,827 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 16:37:23,827 INFO L272 AbstractInterpreter]: Visited 287 different actions 1139 times. Merged at 8 different actions 28 times. Never widened. Performed 18129 root evaluator evaluations with a maximum evaluation depth of 6. Performed 18129 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 6 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 16:37:23,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 16:37:23,835 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 16:37:24,779 INFO L227 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 80.3% of their original sizes. [2018-11-12 16:37:24,779 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 16:37:25,208 INFO L415 sIntCurrentIteration]: We unified 733 AI predicates to 733 [2018-11-12 16:37:25,208 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 16:37:25,208 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 16:37:25,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [9] total 28 [2018-11-12 16:37:25,209 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 16:37:25,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-12 16:37:25,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-12 16:37:25,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2018-11-12 16:37:25,211 INFO L87 Difference]: Start difference. First operand 42683 states and 54831 transitions. Second operand 21 states. Received shutdown request... [2018-11-12 16:37:29,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-12 16:37:29,646 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 16:37:29,651 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 16:37:29,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:37:29 BoogieIcfgContainer [2018-11-12 16:37:29,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 16:37:29,652 INFO L168 Benchmark]: Toolchain (without parser) took 213923.76 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-11-12 16:37:29,653 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 16:37:29,654 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1243.20 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-12 16:37:29,655 INFO L168 Benchmark]: Boogie Procedure Inliner took 220.04 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -882.9 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-12 16:37:29,656 INFO L168 Benchmark]: Boogie Preprocessor took 148.24 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-11-12 16:37:29,656 INFO L168 Benchmark]: RCFGBuilder took 5359.21 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: 287.4 MB). Peak memory consumption was 287.4 MB. Max. memory is 7.1 GB. [2018-11-12 16:37:29,657 INFO L168 Benchmark]: TraceAbstraction took 206947.81 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -663.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-11-12 16:37:29,662 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1243.20 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 220.04 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -882.9 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 148.24 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5359.21 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: 287.4 MB). Peak memory consumption was 287.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206947.81 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -663.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 52). Cancelled while BasicCegarLoop was constructing difference of abstraction (42683states) and FLOYD_HOARE automaton (currently 9 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (147 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 206.8s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 152.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3699 SDtfs, 20126 SDslu, 2858 SDs, 0 SdLazy, 29906 SolverSat, 4429 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 67.6s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 7328 GetRequests, 7079 SyntacticMatches, 71 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1487 ImplicationChecksByTransitivity, 18.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42683occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 16.0s AbstIntTime, 9 AbstIntIterations, 5 AbstIntStrong, 0.9977464785081033 AbsIntWeakeningRatio, 0.06851063829787234 AbsIntAvgWeakeningVarsNumRemoved, 17.532340425531913 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 1879 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 19.1s InterpolantComputationTime, 7321 NumberOfCodeBlocks, 7321 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 9728 ConstructedInterpolants, 27 QuantifiedInterpolants, 17806761 SizeOfPredicates, 6 NumberOfNonLiveVariables, 3418 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 19 InterpolantComputations, 4 PerfectInterpolantSequences, 7945/8930 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown