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/Problem11_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:14:10,738 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:14:10,743 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:14:10,756 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:14:10,756 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:14:10,757 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:14:10,758 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:14:10,760 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:14:10,762 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:14:10,763 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:14:10,764 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:14:10,764 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:14:10,765 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:14:10,766 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:14:10,767 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:14:10,768 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:14:10,769 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:14:10,771 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:14:10,773 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:14:10,775 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:14:10,776 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:14:10,778 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:14:10,780 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:14:10,780 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:14:10,781 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:14:10,782 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:14:10,783 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:14:10,784 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:14:10,785 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:14:10,786 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:14:10,787 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:14:10,787 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:14:10,788 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:14:10,788 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:14:10,789 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:14:10,790 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:14:10,790 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 [2018-11-07 20:14:10,807 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:14:10,807 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:14:10,808 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:14:10,808 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:14:10,808 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:14:10,808 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:14:10,808 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:14:10,809 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:14:10,809 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:14:10,809 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:14:10,809 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:14:10,809 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:14:10,809 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:14:10,812 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:14:10,812 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:14:10,815 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:14:10,815 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:14:10,815 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:14:10,815 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:14:10,815 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:14:10,816 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:14:10,816 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:14:10,816 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:14:10,816 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:14:10,816 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:14:10,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:14:10,817 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:14:10,817 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:14:10,817 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:14:10,817 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:14:10,818 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:14:10,818 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:14:10,818 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:14:10,818 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:14:10,818 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:14:10,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:14:10,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:14:10,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:14:10,884 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:14:10,884 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:14:10,885 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label56_true-unreach-call.c [2018-11-07 20:14:10,949 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdc3173b/5a6e84e1c3914e10a8ca47e2b2ffb65c/FLAG406b017e1 [2018-11-07 20:14:11,637 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:14:11,638 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label56_true-unreach-call.c [2018-11-07 20:14:11,662 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdc3173b/5a6e84e1c3914e10a8ca47e2b2ffb65c/FLAG406b017e1 [2018-11-07 20:14:11,681 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdc3173b/5a6e84e1c3914e10a8ca47e2b2ffb65c [2018-11-07 20:14:11,693 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:14:11,694 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:14:11,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:14:11,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:14:11,700 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:14:11,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:14:11" (1/1) ... [2018-11-07 20:14:11,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c1454e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:11, skipping insertion in model container [2018-11-07 20:14:11,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:14:11" (1/1) ... [2018-11-07 20:14:11,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:14:11,789 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:14:12,408 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:14:12,413 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:14:12,611 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:14:12,633 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:14:12,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12 WrapperNode [2018-11-07 20:14:12,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:14:12,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:14:12,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:14:12,635 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:14:12,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (1/1) ... [2018-11-07 20:14:12,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (1/1) ... [2018-11-07 20:14:12,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:14:12,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:14:12,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:14:12,814 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:14:12,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (1/1) ... [2018-11-07 20:14:12,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (1/1) ... [2018-11-07 20:14:12,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (1/1) ... [2018-11-07 20:14:12,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (1/1) ... [2018-11-07 20:14:12,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (1/1) ... [2018-11-07 20:14:12,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (1/1) ... [2018-11-07 20:14:12,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (1/1) ... [2018-11-07 20:14:12,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:14:12,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:14:12,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:14:12,965 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:14:12,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (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 [2018-11-07 20:14:13,044 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:14:13,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:14:13,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:14:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:14:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:14:13,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:14:13,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:14:13,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:14:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:14:17,707 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:14:17,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:14:17 BoogieIcfgContainer [2018-11-07 20:14:17,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:14:17,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:14:17,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:14:17,713 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:14:17,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:14:11" (1/3) ... [2018-11-07 20:14:17,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea70917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:14:17, skipping insertion in model container [2018-11-07 20:14:17,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:14:12" (2/3) ... [2018-11-07 20:14:17,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ea70917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:14:17, skipping insertion in model container [2018-11-07 20:14:17,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:14:17" (3/3) ... [2018-11-07 20:14:17,717 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label56_true-unreach-call.c [2018-11-07 20:14:17,728 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:14:17,738 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:14:17,757 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:14:17,798 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:14:17,798 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:14:17,798 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:14:17,799 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:14:17,799 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:14:17,799 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:14:17,799 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:14:17,799 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:14:17,830 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 20:14:17,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-07 20:14:17,843 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:14:17,844 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:14:17,847 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:14:17,856 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:14:17,857 INFO L82 PathProgramCache]: Analyzing trace with hash -822687572, now seen corresponding path program 1 times [2018-11-07 20:14:17,859 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:14:17,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:14:17,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:14:17,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:14:17,914 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:14:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:14:18,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:14:18,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:14:18,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:14:18,395 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:14:18,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:14:18,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:14:18,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:14:18,422 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-11-07 20:14:20,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:14:20,703 INFO L93 Difference]: Finished difference Result 782 states and 1372 transitions. [2018-11-07 20:14:20,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:14:20,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-07 20:14:20,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:14:20,733 INFO L225 Difference]: With dead ends: 782 [2018-11-07 20:14:20,734 INFO L226 Difference]: Without dead ends: 487 [2018-11-07 20:14:20,747 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:14:20,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-11-07 20:14:20,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 482. [2018-11-07 20:14:20,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-11-07 20:14:20,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 843 transitions. [2018-11-07 20:14:20,845 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 843 transitions. Word has length 48 [2018-11-07 20:14:20,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:14:20,845 INFO L480 AbstractCegarLoop]: Abstraction has 482 states and 843 transitions. [2018-11-07 20:14:20,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:14:20,846 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 843 transitions. [2018-11-07 20:14:20,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-07 20:14:20,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:14:20,854 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:14:20,854 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:14:20,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:14:20,855 INFO L82 PathProgramCache]: Analyzing trace with hash -191480489, now seen corresponding path program 1 times [2018-11-07 20:14:20,855 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:14:20,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:14:20,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:14:20,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:14:20,857 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:14:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:14:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:14:21,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:14:21,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-07 20:14:21,568 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:14:21,570 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 20:14:21,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 20:14:21,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 20:14:21,571 INFO L87 Difference]: Start difference. First operand 482 states and 843 transitions. Second operand 7 states. [2018-11-07 20:14:27,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:14:27,544 INFO L93 Difference]: Finished difference Result 1759 states and 3238 transitions. [2018-11-07 20:14:27,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 20:14:27,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 123 [2018-11-07 20:14:27,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:14:27,568 INFO L225 Difference]: With dead ends: 1759 [2018-11-07 20:14:27,568 INFO L226 Difference]: Without dead ends: 1283 [2018-11-07 20:14:27,575 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-07 20:14:27,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2018-11-07 20:14:27,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1037. [2018-11-07 20:14:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2018-11-07 20:14:27,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1685 transitions. [2018-11-07 20:14:27,681 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1685 transitions. Word has length 123 [2018-11-07 20:14:27,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:14:27,682 INFO L480 AbstractCegarLoop]: Abstraction has 1037 states and 1685 transitions. [2018-11-07 20:14:27,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 20:14:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1685 transitions. [2018-11-07 20:14:27,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-11-07 20:14:27,687 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:14:27,688 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:14:27,688 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:14:27,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:14:27,689 INFO L82 PathProgramCache]: Analyzing trace with hash -259626392, now seen corresponding path program 1 times [2018-11-07 20:14:27,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:14:27,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:14:27,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:14:27,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:14:27,691 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:14:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:14:28,002 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 82 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 20:14:28,002 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:14:28,002 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:14:28,003 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 197 with the following transitions: [2018-11-07 20:14:28,006 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:14:28,052 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:14:28,053 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:14:28,478 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:14:28,480 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-11-07 20:14:28,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:14:28,520 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:14:29,171 INFO L227 lantSequenceWeakener]: Weakened 187 states. On average, predicates are now at 73.53% of their original sizes. [2018-11-07 20:14:29,171 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:14:29,383 INFO L415 sIntCurrentIteration]: We unified 195 AI predicates to 195 [2018-11-07 20:14:29,384 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:14:29,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:14:29,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 20:14:29,385 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:14:29,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 20:14:29,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 20:14:29,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 20:14:29,394 INFO L87 Difference]: Start difference. First operand 1037 states and 1685 transitions. Second operand 7 states. [2018-11-07 20:14:33,052 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:14:48,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:14:48,420 INFO L93 Difference]: Finished difference Result 2260 states and 3574 transitions. [2018-11-07 20:14:48,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:14:48,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2018-11-07 20:14:48,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:14:48,428 INFO L225 Difference]: With dead ends: 2260 [2018-11-07 20:14:48,428 INFO L226 Difference]: Without dead ends: 1229 [2018-11-07 20:14:48,431 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 196 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:14:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-11-07 20:14:48,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1227. [2018-11-07 20:14:48,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2018-11-07 20:14:48,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1883 transitions. [2018-11-07 20:14:48,466 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1883 transitions. Word has length 196 [2018-11-07 20:14:48,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:14:48,467 INFO L480 AbstractCegarLoop]: Abstraction has 1227 states and 1883 transitions. [2018-11-07 20:14:48,467 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 20:14:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1883 transitions. [2018-11-07 20:14:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-11-07 20:14:48,472 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:14:48,472 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:14:48,473 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:14:48,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:14:48,473 INFO L82 PathProgramCache]: Analyzing trace with hash 188115406, now seen corresponding path program 1 times [2018-11-07 20:14:48,473 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:14:48,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:14:48,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:14:48,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:14:48,475 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:14:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:14:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-11-07 20:14:48,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:14:48,862 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:14:48,862 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-11-07 20:14:48,863 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:14:48,869 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:14:48,869 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:14:49,345 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:14:49,477 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:14:49,477 INFO L272 AbstractInterpreter]: Visited 125 different actions 244 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 20:14:49,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:14:49,483 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:14:49,829 INFO L227 lantSequenceWeakener]: Weakened 237 states. On average, predicates are now at 73.49% of their original sizes. [2018-11-07 20:14:49,829 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:14:50,460 INFO L415 sIntCurrentIteration]: We unified 239 AI predicates to 239 [2018-11-07 20:14:50,460 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:14:50,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:14:50,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-07 20:14:50,461 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:14:50,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:14:50,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:14:50,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:14:50,462 INFO L87 Difference]: Start difference. First operand 1227 states and 1883 transitions. Second operand 11 states. [2018-11-07 20:15:04,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:15:04,312 INFO L93 Difference]: Finished difference Result 2453 states and 3929 transitions. [2018-11-07 20:15:04,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-07 20:15:04,312 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 240 [2018-11-07 20:15:04,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:15:04,322 INFO L225 Difference]: With dead ends: 2453 [2018-11-07 20:15:04,322 INFO L226 Difference]: Without dead ends: 1422 [2018-11-07 20:15:04,327 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 248 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2018-11-07 20:15:04,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2018-11-07 20:15:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1418. [2018-11-07 20:15:04,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1418 states. [2018-11-07 20:15:04,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1418 states to 1418 states and 2090 transitions. [2018-11-07 20:15:04,369 INFO L78 Accepts]: Start accepts. Automaton has 1418 states and 2090 transitions. Word has length 240 [2018-11-07 20:15:04,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:15:04,370 INFO L480 AbstractCegarLoop]: Abstraction has 1418 states and 2090 transitions. [2018-11-07 20:15:04,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 20:15:04,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1418 states and 2090 transitions. [2018-11-07 20:15:04,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-11-07 20:15:04,376 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:15:04,376 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:15:04,377 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:15:04,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:04,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1100609894, now seen corresponding path program 1 times [2018-11-07 20:15:04,377 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:15:04,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:04,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:15:04,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:04,379 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:15:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:15:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-07 20:15:04,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:15:04,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:15:04,785 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:15:04,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:15:04,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:15:04,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:15:04,787 INFO L87 Difference]: Start difference. First operand 1418 states and 2090 transitions. Second operand 4 states. [2018-11-07 20:15:07,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:15:07,955 INFO L93 Difference]: Finished difference Result 3943 states and 6559 transitions. [2018-11-07 20:15:07,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:15:07,956 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 250 [2018-11-07 20:15:07,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:15:07,973 INFO L225 Difference]: With dead ends: 3943 [2018-11-07 20:15:07,974 INFO L226 Difference]: Without dead ends: 2912 [2018-11-07 20:15:07,983 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 [2018-11-07 20:15:07,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2018-11-07 20:15:08,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 2896. [2018-11-07 20:15:08,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2896 states. [2018-11-07 20:15:08,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2896 states to 2896 states and 4414 transitions. [2018-11-07 20:15:08,077 INFO L78 Accepts]: Start accepts. Automaton has 2896 states and 4414 transitions. Word has length 250 [2018-11-07 20:15:08,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:15:08,078 INFO L480 AbstractCegarLoop]: Abstraction has 2896 states and 4414 transitions. [2018-11-07 20:15:08,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:15:08,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2896 states and 4414 transitions. [2018-11-07 20:15:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-11-07 20:15:08,086 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:15:08,087 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:15:08,087 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:15:08,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:08,088 INFO L82 PathProgramCache]: Analyzing trace with hash -2052167774, now seen corresponding path program 1 times [2018-11-07 20:15:08,088 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:15:08,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:08,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:15:08,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:08,089 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:15:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:15:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 171 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:15:08,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:15:08,560 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:15:08,560 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 267 with the following transitions: [2018-11-07 20:15:08,561 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [578], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:15:08,569 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:15:08,570 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:15:08,746 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:15:08,984 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:15:08,984 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 20:15:08,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:08,999 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:15:09,332 INFO L227 lantSequenceWeakener]: Weakened 263 states. On average, predicates are now at 73.45% of their original sizes. [2018-11-07 20:15:09,332 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:15:09,445 INFO L415 sIntCurrentIteration]: We unified 265 AI predicates to 265 [2018-11-07 20:15:09,445 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:15:09,445 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:15:09,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-07 20:15:09,445 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:15:09,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:15:09,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:15:09,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:15:09,446 INFO L87 Difference]: Start difference. First operand 2896 states and 4414 transitions. Second operand 11 states. [2018-11-07 20:15:19,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:15:19,637 INFO L93 Difference]: Finished difference Result 5796 states and 9172 transitions. [2018-11-07 20:15:19,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-07 20:15:19,637 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 266 [2018-11-07 20:15:19,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:15:19,655 INFO L225 Difference]: With dead ends: 5796 [2018-11-07 20:15:19,655 INFO L226 Difference]: Without dead ends: 3287 [2018-11-07 20:15:19,669 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 275 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2018-11-07 20:15:19,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2018-11-07 20:15:19,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3281. [2018-11-07 20:15:19,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3281 states. [2018-11-07 20:15:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3281 states to 3281 states and 4855 transitions. [2018-11-07 20:15:19,742 INFO L78 Accepts]: Start accepts. Automaton has 3281 states and 4855 transitions. Word has length 266 [2018-11-07 20:15:19,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:15:19,743 INFO L480 AbstractCegarLoop]: Abstraction has 3281 states and 4855 transitions. [2018-11-07 20:15:19,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 20:15:19,743 INFO L276 IsEmpty]: Start isEmpty. Operand 3281 states and 4855 transitions. [2018-11-07 20:15:19,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-11-07 20:15:19,752 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:15:19,752 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:15:19,753 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:15:19,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:19,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1316171772, now seen corresponding path program 1 times [2018-11-07 20:15:19,753 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:15:19,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:19,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:15:19,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:19,755 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:15:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:15:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 85 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-11-07 20:15:20,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:15:20,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:15:20,108 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:15:20,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:15:20,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:15:20,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:15:20,109 INFO L87 Difference]: Start difference. First operand 3281 states and 4855 transitions. Second operand 4 states. [2018-11-07 20:15:24,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:15:24,095 INFO L93 Difference]: Finished difference Result 10564 states and 16823 transitions. [2018-11-07 20:15:24,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:15:24,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 271 [2018-11-07 20:15:24,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:15:24,143 INFO L225 Difference]: With dead ends: 10564 [2018-11-07 20:15:24,143 INFO L226 Difference]: Without dead ends: 7669 [2018-11-07 20:15:24,169 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 [2018-11-07 20:15:24,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7669 states. [2018-11-07 20:15:24,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7669 to 7666. [2018-11-07 20:15:24,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7666 states. [2018-11-07 20:15:24,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7666 states to 7666 states and 11487 transitions. [2018-11-07 20:15:24,397 INFO L78 Accepts]: Start accepts. Automaton has 7666 states and 11487 transitions. Word has length 271 [2018-11-07 20:15:24,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:15:24,398 INFO L480 AbstractCegarLoop]: Abstraction has 7666 states and 11487 transitions. [2018-11-07 20:15:24,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:15:24,398 INFO L276 IsEmpty]: Start isEmpty. Operand 7666 states and 11487 transitions. [2018-11-07 20:15:24,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2018-11-07 20:15:24,425 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:15:24,426 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:15:24,426 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:15:24,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:24,426 INFO L82 PathProgramCache]: Analyzing trace with hash 385643921, now seen corresponding path program 1 times [2018-11-07 20:15:24,427 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:15:24,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:24,428 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:15:24,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:24,428 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:15:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:15:24,895 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 87 proven. 101 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-07 20:15:24,895 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:15:24,895 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:15:24,896 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 290 with the following transitions: [2018-11-07 20:15:24,897 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [657], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:15:24,901 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:15:24,901 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:15:25,054 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:15:25,719 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:15:25,719 INFO L272 AbstractInterpreter]: Visited 141 different actions 553 times. Merged at 7 different actions 24 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 20:15:25,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:25,730 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:15:25,730 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:15:25,730 INFO L194 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 [2018-11-07 20:15:25,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:15:25,741 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:15:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:15:25,863 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:15:31,753 WARN L179 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 33 DAG size of output: 25 [2018-11-07 20:15:32,050 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2018-11-07 20:15:32,050 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:15:32,210 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-07 20:15:32,935 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:15:32,956 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 20:15:32,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 5] total 12 [2018-11-07 20:15:32,956 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 20:15:32,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 20:15:32,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 20:15:32,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=89, Unknown=2, NotChecked=0, Total=132 [2018-11-07 20:15:32,958 INFO L87 Difference]: Start difference. First operand 7666 states and 11487 transitions. Second operand 10 states. [2018-11-07 20:15:42,209 WARN L179 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 27 DAG size of output: 13 [2018-11-07 20:15:50,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:15:50,654 INFO L93 Difference]: Finished difference Result 22625 states and 37094 transitions. [2018-11-07 20:15:50,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-07 20:15:50,654 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 289 [2018-11-07 20:15:50,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:15:50,762 INFO L225 Difference]: With dead ends: 22625 [2018-11-07 20:15:50,762 INFO L226 Difference]: Without dead ends: 15345 [2018-11-07 20:15:50,823 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 573 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=251, Invalid=617, Unknown=2, NotChecked=0, Total=870 [2018-11-07 20:15:50,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15345 states. [2018-11-07 20:15:51,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15345 to 14082. [2018-11-07 20:15:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14082 states. [2018-11-07 20:15:51,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14082 states to 14082 states and 21812 transitions. [2018-11-07 20:15:51,519 INFO L78 Accepts]: Start accepts. Automaton has 14082 states and 21812 transitions. Word has length 289 [2018-11-07 20:15:51,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:15:51,525 INFO L480 AbstractCegarLoop]: Abstraction has 14082 states and 21812 transitions. [2018-11-07 20:15:51,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 20:15:51,525 INFO L276 IsEmpty]: Start isEmpty. Operand 14082 states and 21812 transitions. [2018-11-07 20:15:51,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-11-07 20:15:51,567 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:15:51,567 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:15:51,567 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:15:51,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:51,568 INFO L82 PathProgramCache]: Analyzing trace with hash -431969405, now seen corresponding path program 1 times [2018-11-07 20:15:51,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:15:51,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:51,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:15:51,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:15:51,569 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:15:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:15:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-11-07 20:15:52,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:15:52,126 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:15:52,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 320 with the following transitions: [2018-11-07 20:15:52,127 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [734], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:15:52,132 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:15:52,132 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:15:52,418 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:15:53,408 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:15:53,409 INFO L272 AbstractInterpreter]: Visited 156 different actions 615 times. Merged at 7 different actions 24 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 20:15:53,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:15:53,444 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:15:54,127 INFO L227 lantSequenceWeakener]: Weakened 105 states. On average, predicates are now at 74.47% of their original sizes. [2018-11-07 20:15:54,128 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:15:54,992 INFO L415 sIntCurrentIteration]: We unified 318 AI predicates to 318 [2018-11-07 20:15:54,992 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:15:54,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:15:54,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [5] total 23 [2018-11-07 20:15:54,993 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:15:54,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 20:15:54,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 20:15:54,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-11-07 20:15:54,995 INFO L87 Difference]: Start difference. First operand 14082 states and 21812 transitions. Second operand 20 states. [2018-11-07 20:16:16,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:16:16,415 INFO L93 Difference]: Finished difference Result 29996 states and 47689 transitions. [2018-11-07 20:16:16,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-07 20:16:16,416 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 319 [2018-11-07 20:16:16,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:16:16,496 INFO L225 Difference]: With dead ends: 29996 [2018-11-07 20:16:16,497 INFO L226 Difference]: Without dead ends: 16873 [2018-11-07 20:16:16,557 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 330 GetRequests, 300 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=184, Invalid=746, Unknown=0, NotChecked=0, Total=930 [2018-11-07 20:16:16,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16873 states. [2018-11-07 20:16:16,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16873 to 16472. [2018-11-07 20:16:16,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16472 states. [2018-11-07 20:16:16,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16472 states to 16472 states and 24700 transitions. [2018-11-07 20:16:16,981 INFO L78 Accepts]: Start accepts. Automaton has 16472 states and 24700 transitions. Word has length 319 [2018-11-07 20:16:16,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:16:16,982 INFO L480 AbstractCegarLoop]: Abstraction has 16472 states and 24700 transitions. [2018-11-07 20:16:16,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-07 20:16:16,982 INFO L276 IsEmpty]: Start isEmpty. Operand 16472 states and 24700 transitions. [2018-11-07 20:16:17,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-11-07 20:16:17,037 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:16:17,038 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:16:17,038 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:16:17,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:16:17,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1408185684, now seen corresponding path program 1 times [2018-11-07 20:16:17,039 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:16:17,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:16:17,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:16:17,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:16:17,040 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:16:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:16:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 304 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-07 20:16:17,669 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:16:17,669 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:16:17,669 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 361 with the following transitions: [2018-11-07 20:16:17,670 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [657], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:16:17,674 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:16:17,674 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:16:17,785 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:16:19,290 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:16:19,291 INFO L272 AbstractInterpreter]: Visited 142 different actions 704 times. Merged at 8 different actions 40 times. Widened at 1 different actions 1 times. Found 9 fixpoints after 3 different actions. Largest state had 28 variables. [2018-11-07 20:16:19,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:16:19,297 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:16:19,297 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:16:19,297 INFO L194 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 [2018-11-07 20:16:19,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:16:19,308 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:16:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:16:19,416 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:16:19,561 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 304 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-07 20:16:19,561 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:16:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 304 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-11-07 20:16:19,962 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 20:16:19,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-07 20:16:19,963 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 20:16:19,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 20:16:19,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 20:16:19,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:16:19,968 INFO L87 Difference]: Start difference. First operand 16472 states and 24700 transitions. Second operand 9 states. [2018-11-07 20:16:26,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:16:26,717 INFO L93 Difference]: Finished difference Result 44842 states and 84120 transitions. [2018-11-07 20:16:26,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-07 20:16:26,718 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 360 [2018-11-07 20:16:26,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:16:27,004 INFO L225 Difference]: With dead ends: 44842 [2018-11-07 20:16:27,005 INFO L226 Difference]: Without dead ends: 31529 [2018-11-07 20:16:27,221 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 737 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=1035, Unknown=0, NotChecked=0, Total=1332 [2018-11-07 20:16:27,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31529 states. [2018-11-07 20:16:28,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31529 to 29234. [2018-11-07 20:16:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29234 states. [2018-11-07 20:16:28,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29234 states to 29234 states and 39504 transitions. [2018-11-07 20:16:28,863 INFO L78 Accepts]: Start accepts. Automaton has 29234 states and 39504 transitions. Word has length 360 [2018-11-07 20:16:28,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:16:28,864 INFO L480 AbstractCegarLoop]: Abstraction has 29234 states and 39504 transitions. [2018-11-07 20:16:28,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 20:16:28,864 INFO L276 IsEmpty]: Start isEmpty. Operand 29234 states and 39504 transitions. [2018-11-07 20:16:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2018-11-07 20:16:28,949 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:16:28,950 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 20:16:28,950 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:16:28,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:16:28,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1339658866, now seen corresponding path program 1 times [2018-11-07 20:16:28,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:16:28,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:16:28,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:16:28,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:16:28,952 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:16:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:16:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 20:16:29,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:16:29,492 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:16:29,493 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 372 with the following transitions: [2018-11-07 20:16:29,493 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [657], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:16:29,495 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:16:29,495 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:16:29,569 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:16:30,248 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:16:30,249 INFO L272 AbstractInterpreter]: Visited 137 different actions 678 times. Merged at 8 different actions 41 times. Widened at 1 different actions 1 times. Found 8 fixpoints after 3 different actions. Largest state had 28 variables. [2018-11-07 20:16:30,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:16:30,256 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:16:30,256 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:16:30,256 INFO L194 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 [2018-11-07 20:16:30,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:16:30,265 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:16:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:16:30,385 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:16:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-11-07 20:16:30,647 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:16:30,758 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-11-07 20:16:30,780 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:16:30,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-11-07 20:16:30,781 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:16:30,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:16:30,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:16:30,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:16:30,782 INFO L87 Difference]: Start difference. First operand 29234 states and 39504 transitions. Second operand 3 states. [2018-11-07 20:16:43,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:16:43,046 INFO L93 Difference]: Finished difference Result 58263 states and 81097 transitions. [2018-11-07 20:16:43,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:16:43,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 371 [2018-11-07 20:16:43,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:16:43,169 INFO L225 Difference]: With dead ends: 58263 [2018-11-07 20:16:43,170 INFO L226 Difference]: Without dead ends: 32005 [2018-11-07 20:16:43,320 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 741 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:16:43,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32005 states. [2018-11-07 20:16:44,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32005 to 31234. [2018-11-07 20:16:44,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31234 states. [2018-11-07 20:16:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31234 states to 31234 states and 42159 transitions. [2018-11-07 20:16:44,463 INFO L78 Accepts]: Start accepts. Automaton has 31234 states and 42159 transitions. Word has length 371 [2018-11-07 20:16:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:16:44,464 INFO L480 AbstractCegarLoop]: Abstraction has 31234 states and 42159 transitions. [2018-11-07 20:16:44,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:16:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 31234 states and 42159 transitions. [2018-11-07 20:16:44,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-11-07 20:16:44,541 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:16:44,542 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:16:44,542 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:16:44,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:16:44,542 INFO L82 PathProgramCache]: Analyzing trace with hash 152812171, now seen corresponding path program 1 times [2018-11-07 20:16:44,542 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:16:44,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:16:44,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:16:44,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:16:44,544 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:16:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:16:44,917 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 20:16:44,918 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:16:44,918 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:16:44,918 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 401 with the following transitions: [2018-11-07 20:16:44,919 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [815], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:16:44,921 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:16:44,921 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:16:45,023 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:16:46,060 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:16:46,060 INFO L272 AbstractInterpreter]: Visited 147 different actions 725 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 5 fixpoints after 3 different actions. Largest state had 28 variables. [2018-11-07 20:16:46,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:16:46,070 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:16:46,636 INFO L227 lantSequenceWeakener]: Weakened 397 states. On average, predicates are now at 75.26% of their original sizes. [2018-11-07 20:16:46,636 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:16:46,850 INFO L415 sIntCurrentIteration]: We unified 399 AI predicates to 399 [2018-11-07 20:16:46,850 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:16:46,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:16:46,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-07 20:16:46,850 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:16:46,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:16:46,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:16:46,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:16:46,851 INFO L87 Difference]: Start difference. First operand 31234 states and 42159 transitions. Second operand 11 states. [2018-11-07 20:17:02,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:17:02,457 INFO L93 Difference]: Finished difference Result 75407 states and 105007 transitions. [2018-11-07 20:17:02,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-07 20:17:02,457 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 400 [2018-11-07 20:17:02,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:17:02,612 INFO L225 Difference]: With dead ends: 75407 [2018-11-07 20:17:02,613 INFO L226 Difference]: Without dead ends: 45528 [2018-11-07 20:17:02,736 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 411 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2018-11-07 20:17:02,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45528 states. [2018-11-07 20:17:03,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45528 to 44758. [2018-11-07 20:17:03,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44758 states. [2018-11-07 20:17:03,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44758 states to 44758 states and 59520 transitions. [2018-11-07 20:17:03,900 INFO L78 Accepts]: Start accepts. Automaton has 44758 states and 59520 transitions. Word has length 400 [2018-11-07 20:17:03,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:17:03,901 INFO L480 AbstractCegarLoop]: Abstraction has 44758 states and 59520 transitions. [2018-11-07 20:17:03,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 20:17:03,901 INFO L276 IsEmpty]: Start isEmpty. Operand 44758 states and 59520 transitions. [2018-11-07 20:17:04,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2018-11-07 20:17:04,010 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:17:04,011 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:17:04,011 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:17:04,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:17:04,012 INFO L82 PathProgramCache]: Analyzing trace with hash 15972197, now seen corresponding path program 1 times [2018-11-07 20:17:04,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:17:04,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:17:04,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:17:04,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:17:04,013 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:17:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:17:04,444 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 129 proven. 213 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-07 20:17:04,444 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:17:04,444 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:17:04,444 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 406 with the following transitions: [2018-11-07 20:17:04,445 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [815], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:17:04,447 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:17:04,447 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:17:04,542 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:17:05,134 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:17:05,135 INFO L272 AbstractInterpreter]: Visited 149 different actions 587 times. Merged at 7 different actions 24 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 20:17:05,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:17:05,143 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:17:10,967 INFO L227 lantSequenceWeakener]: Weakened 402 states. On average, predicates are now at 75.18% of their original sizes. [2018-11-07 20:17:10,967 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:17:11,161 INFO L415 sIntCurrentIteration]: We unified 404 AI predicates to 404 [2018-11-07 20:17:11,161 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:17:11,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:17:11,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [8] total 19 [2018-11-07 20:17:11,162 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:17:11,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 20:17:11,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 20:17:11,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-11-07 20:17:11,163 INFO L87 Difference]: Start difference. First operand 44758 states and 59520 transitions. Second operand 13 states. [2018-11-07 20:17:33,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:17:33,782 INFO L93 Difference]: Finished difference Result 104968 states and 141260 transitions. [2018-11-07 20:17:33,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-11-07 20:17:33,782 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 405 [2018-11-07 20:17:33,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:17:33,998 INFO L225 Difference]: With dead ends: 104968 [2018-11-07 20:17:33,999 INFO L226 Difference]: Without dead ends: 64335 [2018-11-07 20:17:34,140 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 427 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=243, Invalid=1017, Unknown=0, NotChecked=0, Total=1260 [2018-11-07 20:17:34,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64335 states. [2018-11-07 20:17:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64335 to 63368. [2018-11-07 20:17:35,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63368 states. [2018-11-07 20:17:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63368 states to 63368 states and 83128 transitions. [2018-11-07 20:17:35,463 INFO L78 Accepts]: Start accepts. Automaton has 63368 states and 83128 transitions. Word has length 405 [2018-11-07 20:17:35,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:17:35,464 INFO L480 AbstractCegarLoop]: Abstraction has 63368 states and 83128 transitions. [2018-11-07 20:17:35,464 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-07 20:17:35,464 INFO L276 IsEmpty]: Start isEmpty. Operand 63368 states and 83128 transitions. [2018-11-07 20:17:35,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2018-11-07 20:17:35,545 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:17:35,545 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:17:35,546 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:17:35,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:17:35,546 INFO L82 PathProgramCache]: Analyzing trace with hash 418687354, now seen corresponding path program 1 times [2018-11-07 20:17:35,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:17:35,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:17:35,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:17:35,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:17:35,547 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:17:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:17:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 349 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-07 20:17:36,994 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:17:36,994 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:17:36,994 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 422 with the following transitions: [2018-11-07 20:17:36,995 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [285], [287], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [562], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [815], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 20:17:37,000 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:17:37,001 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:17:37,090 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:17:37,560 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:17:37,560 INFO L272 AbstractInterpreter]: Visited 157 different actions 458 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 20:17:37,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:17:37,567 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:17:38,306 INFO L227 lantSequenceWeakener]: Weakened 145 states. On average, predicates are now at 74.1% of their original sizes. [2018-11-07 20:17:38,306 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:17:38,729 INFO L415 sIntCurrentIteration]: We unified 420 AI predicates to 420 [2018-11-07 20:17:38,730 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:17:38,730 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:17:38,730 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [6] total 26 [2018-11-07 20:17:38,730 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:17:38,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-07 20:17:38,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-07 20:17:38,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2018-11-07 20:17:38,732 INFO L87 Difference]: Start difference. First operand 63368 states and 83128 transitions. Second operand 22 states. Received shutdown request... [2018-11-07 20:17:41,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 20:17:41,948 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:17:41,954 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:17:41,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:17:41 BoogieIcfgContainer [2018-11-07 20:17:41,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:17:41,955 INFO L168 Benchmark]: Toolchain (without parser) took 210262.19 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-11-07 20:17:41,958 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:17:41,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 939.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-11-07 20:17:41,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 178.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2018-11-07 20:17:41,960 INFO L168 Benchmark]: Boogie Preprocessor took 150.98 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:17:41,961 INFO L168 Benchmark]: RCFGBuilder took 4744.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.8 MB). Peak memory consumption was 187.8 MB. Max. memory is 7.1 GB. [2018-11-07 20:17:41,961 INFO L168 Benchmark]: TraceAbstraction took 204244.69 ms. Allocated memory was 2.3 GB in the beginning and 4.6 GB in the end (delta: 2.4 GB). Free memory was 2.0 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. [2018-11-07 20:17:41,968 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 939.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 178.03 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -836.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.98 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4744.13 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.8 MB). Peak memory consumption was 187.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204244.69 ms. Allocated memory was 2.3 GB in the beginning and 4.6 GB in the end (delta: 2.4 GB). Free memory was 2.0 GB in the beginning and 3.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 129]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 129). Cancelled while BasicCegarLoop was constructing difference of abstraction (63368states) and FLOYD_HOARE automaton (currently 9 states, 22 states before enhancement),while ReachableStatesComputation was computing reachable states (76 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 204.1s OverallTime, 14 OverallIterations, 4 TraceHistogramMax, 160.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3165 SDtfs, 16978 SDslu, 3854 SDs, 0 SdLazy, 26716 SolverSat, 5104 SolverUnsat, 16 SolverUnknown, 0 SolverNotchecked, 74.6s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 4467 GetRequests, 4221 SyntacticMatches, 10 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1405 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63368occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.5s AbstIntTime, 10 AbstIntIterations, 7 AbstIntStrong, 0.9977748181769938 AbsIntWeakeningRatio, 0.09598214285714286 AbsIntAvgWeakeningVarsNumRemoved, 20.854464285714286 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 6749 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 4979 NumberOfCodeBlocks, 4979 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 5979 ConstructedInterpolants, 47 QuantifiedInterpolants, 5840537 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1741 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 4711/5270 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown