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/Problem14_label05_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:02:42,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:02:42,701 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:02:42,716 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:02:42,716 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:02:42,718 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:02:42,720 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:02:42,722 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:02:42,725 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:02:42,727 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:02:42,728 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:02:42,728 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:02:42,730 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:02:42,733 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:02:42,734 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:02:42,736 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:02:42,737 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:02:42,745 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:02:42,752 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:02:42,757 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:02:42,758 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:02:42,759 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:02:42,762 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:02:42,763 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:02:42,765 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:02:42,766 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:02:42,767 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:02:42,770 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:02:42,771 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:02:42,772 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:02:42,774 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:02:42,775 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:02:42,777 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:02:42,778 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:02:42,779 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:02:42,779 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:02:42,780 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 19:02:42,807 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:02:42,807 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:02:42,808 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:02:42,808 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:02:42,808 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:02:42,809 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:02:42,809 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:02:42,809 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:02:42,809 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:02:42,809 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:02:42,810 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:02:42,810 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:02:42,810 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:02:42,811 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:02:42,811 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:02:42,811 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:02:42,811 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:02:42,812 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:02:42,812 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:02:42,812 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:02:42,812 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:02:42,812 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:02:42,813 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:02:42,813 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:02:42,813 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:02:42,813 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:02:42,813 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:02:42,814 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:02:42,814 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:02:42,814 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:02:42,814 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:02:42,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:02:42,814 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:02:42,815 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:02:42,815 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:02:42,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:02:42,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:02:42,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:02:42,896 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:02:42,896 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:02:42,897 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label05_true-unreach-call_false-termination.c [2018-11-12 19:02:42,956 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06452d0d2/16f7ed485b4941239829e7fcc90017ff/FLAG80b413553 [2018-11-12 19:02:43,568 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:02:43,569 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label05_true-unreach-call_false-termination.c [2018-11-12 19:02:43,587 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06452d0d2/16f7ed485b4941239829e7fcc90017ff/FLAG80b413553 [2018-11-12 19:02:43,603 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06452d0d2/16f7ed485b4941239829e7fcc90017ff [2018-11-12 19:02:43,622 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:02:43,623 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:02:43,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:02:43,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:02:43,629 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:02:43,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:02:43" (1/1) ... [2018-11-12 19:02:43,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2b0430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:43, skipping insertion in model container [2018-11-12 19:02:43,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:02:43" (1/1) ... [2018-11-12 19:02:43,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:02:43,725 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:02:44,245 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:02:44,250 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:02:44,424 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:02:44,454 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:02:44,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44 WrapperNode [2018-11-12 19:02:44,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:02:44,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:02:44,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:02:44,456 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:02:44,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (1/1) ... [2018-11-12 19:02:44,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (1/1) ... [2018-11-12 19:02:44,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:02:44,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:02:44,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:02:44,610 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:02:44,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (1/1) ... [2018-11-12 19:02:44,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (1/1) ... [2018-11-12 19:02:44,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (1/1) ... [2018-11-12 19:02:44,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (1/1) ... [2018-11-12 19:02:44,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (1/1) ... [2018-11-12 19:02:44,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (1/1) ... [2018-11-12 19:02:44,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (1/1) ... [2018-11-12 19:02:44,714 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:02:44,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:02:44,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:02:44,715 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:02:44,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:02:44,799 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:02:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:02:44,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:02:44,800 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:02:44,800 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:02:44,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:02:44,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:02:44,801 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:02:44,801 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:02:48,309 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:02:48,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:02:48 BoogieIcfgContainer [2018-11-12 19:02:48,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:02:48,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:02:48,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:02:48,315 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:02:48,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:02:43" (1/3) ... [2018-11-12 19:02:48,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33306459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:02:48, skipping insertion in model container [2018-11-12 19:02:48,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:02:44" (2/3) ... [2018-11-12 19:02:48,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33306459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:02:48, skipping insertion in model container [2018-11-12 19:02:48,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:02:48" (3/3) ... [2018-11-12 19:02:48,319 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label05_true-unreach-call_false-termination.c [2018-11-12 19:02:48,330 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:02:48,340 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:02:48,358 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:02:48,396 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:02:48,397 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:02:48,397 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:02:48,397 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:02:48,397 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:02:48,397 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:02:48,397 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:02:48,398 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:02:48,427 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-11-12 19:02:48,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-12 19:02:48,438 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:02:48,439 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:02:48,441 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:02:48,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:02:48,448 INFO L82 PathProgramCache]: Analyzing trace with hash 638958820, now seen corresponding path program 1 times [2018-11-12 19:02:48,451 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:02:48,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:02:48,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:02:48,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:02:48,501 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:02:48,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:02:49,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:02:49,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:02:49,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:02:49,009 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:02:49,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:02:49,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:02:49,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:02:49,036 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-11-12 19:02:50,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:02:50,829 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-11-12 19:02:50,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:02:50,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2018-11-12 19:02:50,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:02:50,853 INFO L225 Difference]: With dead ends: 691 [2018-11-12 19:02:50,854 INFO L226 Difference]: Without dead ends: 434 [2018-11-12 19:02:50,863 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 [2018-11-12 19:02:50,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-11-12 19:02:50,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-11-12 19:02:50,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-11-12 19:02:50,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-11-12 19:02:50,947 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 70 [2018-11-12 19:02:50,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:02:50,948 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-11-12 19:02:50,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:02:50,949 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-11-12 19:02:50,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-11-12 19:02:50,958 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:02:50,958 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:02:50,959 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:02:50,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:02:50,959 INFO L82 PathProgramCache]: Analyzing trace with hash 781618536, now seen corresponding path program 1 times [2018-11-12 19:02:50,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:02:50,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:02:50,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:02:50,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:02:50,961 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:02:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:02:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:02:51,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:02:51,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:02:51,307 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:02:51,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:02:51,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:02:51,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:02:51,315 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-11-12 19:02:55,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:02:55,168 INFO L93 Difference]: Finished difference Result 1588 states and 2935 transitions. [2018-11-12 19:02:55,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:02:55,169 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-11-12 19:02:55,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:02:55,182 INFO L225 Difference]: With dead ends: 1588 [2018-11-12 19:02:55,182 INFO L226 Difference]: Without dead ends: 1160 [2018-11-12 19:02:55,189 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:02:55,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2018-11-12 19:02:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1153. [2018-11-12 19:02:55,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1153 states. [2018-11-12 19:02:55,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 1887 transitions. [2018-11-12 19:02:55,252 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 1887 transitions. Word has length 140 [2018-11-12 19:02:55,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:02:55,253 INFO L480 AbstractCegarLoop]: Abstraction has 1153 states and 1887 transitions. [2018-11-12 19:02:55,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:02:55,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 1887 transitions. [2018-11-12 19:02:55,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-12 19:02:55,257 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:02:55,258 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:02:55,258 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:02:55,258 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:02:55,259 INFO L82 PathProgramCache]: Analyzing trace with hash 386881263, now seen corresponding path program 1 times [2018-11-12 19:02:55,259 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:02:55,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:02:55,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:02:55,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:02:55,260 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:02:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:02:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:02:55,447 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:02:55,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:02:55,447 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:02:55,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:02:55,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:02:55,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:02:55,449 INFO L87 Difference]: Start difference. First operand 1153 states and 1887 transitions. Second operand 5 states. [2018-11-12 19:02:58,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:02:58,074 INFO L93 Difference]: Finished difference Result 2716 states and 4601 transitions. [2018-11-12 19:02:58,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:02:58,077 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2018-11-12 19:02:58,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:02:58,095 INFO L225 Difference]: With dead ends: 2716 [2018-11-12 19:02:58,096 INFO L226 Difference]: Without dead ends: 1569 [2018-11-12 19:02:58,104 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:02:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1569 states. [2018-11-12 19:02:58,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1569 to 1538. [2018-11-12 19:02:58,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1538 states. [2018-11-12 19:02:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2356 transitions. [2018-11-12 19:02:58,180 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2356 transitions. Word has length 141 [2018-11-12 19:02:58,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:02:58,181 INFO L480 AbstractCegarLoop]: Abstraction has 1538 states and 2356 transitions. [2018-11-12 19:02:58,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:02:58,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2356 transitions. [2018-11-12 19:02:58,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-12 19:02:58,186 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:02:58,186 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:02:58,186 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:02:58,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:02:58,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1814928629, now seen corresponding path program 1 times [2018-11-12 19:02:58,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:02:58,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:02:58,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:02:58,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:02:58,190 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:02:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:02:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:02:58,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:02:58,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:02:58,376 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:02:58,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:02:58,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:02:58,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:02:58,378 INFO L87 Difference]: Start difference. First operand 1538 states and 2356 transitions. Second operand 5 states. [2018-11-12 19:03:00,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:03:00,723 INFO L93 Difference]: Finished difference Result 4198 states and 6461 transitions. [2018-11-12 19:03:00,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 19:03:00,724 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-11-12 19:03:00,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:03:00,740 INFO L225 Difference]: With dead ends: 4198 [2018-11-12 19:03:00,740 INFO L226 Difference]: Without dead ends: 2666 [2018-11-12 19:03:00,751 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:03:00,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2666 states. [2018-11-12 19:03:00,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2666 to 2560. [2018-11-12 19:03:00,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2560 states. [2018-11-12 19:03:00,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3629 transitions. [2018-11-12 19:03:00,834 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3629 transitions. Word has length 143 [2018-11-12 19:03:00,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:03:00,834 INFO L480 AbstractCegarLoop]: Abstraction has 2560 states and 3629 transitions. [2018-11-12 19:03:00,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:03:00,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3629 transitions. [2018-11-12 19:03:00,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-11-12 19:03:00,837 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:03:00,838 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:03:00,838 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:03:00,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:03:00,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1367995872, now seen corresponding path program 1 times [2018-11-12 19:03:00,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:03:00,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:03:00,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:03:00,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:03:00,840 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:03:00,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:03:01,050 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:03:01,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:03:01,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:03:01,051 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:03:01,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:03:01,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:03:01,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:03:01,052 INFO L87 Difference]: Start difference. First operand 2560 states and 3629 transitions. Second operand 4 states. [2018-11-12 19:03:03,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:03:03,621 INFO L93 Difference]: Finished difference Result 7180 states and 10578 transitions. [2018-11-12 19:03:03,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:03:03,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2018-11-12 19:03:03,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:03:03,656 INFO L225 Difference]: With dead ends: 7180 [2018-11-12 19:03:03,656 INFO L226 Difference]: Without dead ends: 4626 [2018-11-12 19:03:03,676 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:03:03,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4626 states. [2018-11-12 19:03:03,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4626 to 4626. [2018-11-12 19:03:03,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4626 states. [2018-11-12 19:03:03,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4626 states to 4626 states and 6381 transitions. [2018-11-12 19:03:03,810 INFO L78 Accepts]: Start accepts. Automaton has 4626 states and 6381 transitions. Word has length 144 [2018-11-12 19:03:03,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:03:03,811 INFO L480 AbstractCegarLoop]: Abstraction has 4626 states and 6381 transitions. [2018-11-12 19:03:03,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:03:03,811 INFO L276 IsEmpty]: Start isEmpty. Operand 4626 states and 6381 transitions. [2018-11-12 19:03:03,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-11-12 19:03:03,842 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:03:03,843 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-12 19:03:03,843 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:03:03,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:03:03,844 INFO L82 PathProgramCache]: Analyzing trace with hash 2115072535, now seen corresponding path program 1 times [2018-11-12 19:03:03,844 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:03:03,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:03:03,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:03:03,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:03:03,845 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:03:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:03:04,203 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-11-12 19:03:04,406 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 126 proven. 108 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:03:04,406 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:03:04,406 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:03:04,408 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 338 with the following transitions: [2018-11-12 19:03:04,410 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [830], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-12 19:03:04,466 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:03:04,467 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:03:05,105 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:03:05,254 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:03:05,257 INFO L272 AbstractInterpreter]: Visited 159 different actions 159 times. Never merged. Never widened. Performed 1471 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1471 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:03:05,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:03:05,304 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:03:06,177 INFO L227 lantSequenceWeakener]: Weakened 328 states. On average, predicates are now at 77.98% of their original sizes. [2018-11-12 19:03:06,177 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:03:06,639 INFO L415 sIntCurrentIteration]: We unified 336 AI predicates to 336 [2018-11-12 19:03:06,639 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:03:06,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:03:06,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-11-12 19:03:06,640 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:03:06,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-12 19:03:06,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-12 19:03:06,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:03:06,642 INFO L87 Difference]: Start difference. First operand 4626 states and 6381 transitions. Second operand 8 states. [2018-11-12 19:03:22,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:03:22,137 INFO L93 Difference]: Finished difference Result 9246 states and 12759 transitions. [2018-11-12 19:03:22,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 19:03:22,137 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 337 [2018-11-12 19:03:22,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:03:22,159 INFO L225 Difference]: With dead ends: 9246 [2018-11-12 19:03:22,160 INFO L226 Difference]: Without dead ends: 4626 [2018-11-12 19:03:22,185 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 338 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:03:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4626 states. [2018-11-12 19:03:22,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4626 to 4624. [2018-11-12 19:03:22,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4624 states. [2018-11-12 19:03:22,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4624 states to 4624 states and 6343 transitions. [2018-11-12 19:03:22,317 INFO L78 Accepts]: Start accepts. Automaton has 4624 states and 6343 transitions. Word has length 337 [2018-11-12 19:03:22,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:03:22,318 INFO L480 AbstractCegarLoop]: Abstraction has 4624 states and 6343 transitions. [2018-11-12 19:03:22,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-12 19:03:22,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4624 states and 6343 transitions. [2018-11-12 19:03:22,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2018-11-12 19:03:22,350 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:03:22,351 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, 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, 2, 2, 2, 2, 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] [2018-11-12 19:03:22,351 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:03:22,352 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:03:22,352 INFO L82 PathProgramCache]: Analyzing trace with hash 65139688, now seen corresponding path program 1 times [2018-11-12 19:03:22,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:03:22,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:03:22,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:03:22,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:03:22,353 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:03:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:03:22,920 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:03:23,117 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-12 19:03:23,828 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 277 proven. 190 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:03:23,828 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:03:23,829 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:03:23,829 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 423 with the following transitions: [2018-11-12 19:03:23,829 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [830], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-12 19:03:23,836 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:03:23,836 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:03:24,015 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:03:24,385 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:03:24,385 INFO L272 AbstractInterpreter]: Visited 163 different actions 319 times. Merged at 4 different actions 4 times. Never widened. Performed 3379 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3379 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:03:24,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:03:24,432 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:03:25,498 INFO L227 lantSequenceWeakener]: Weakened 231 states. On average, predicates are now at 77.9% of their original sizes. [2018-11-12 19:03:25,498 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:03:27,345 INFO L415 sIntCurrentIteration]: We unified 421 AI predicates to 421 [2018-11-12 19:03:27,345 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:03:27,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:03:27,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [12] total 36 [2018-11-12 19:03:27,346 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:03:27,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-12 19:03:27,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-12 19:03:27,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2018-11-12 19:03:27,348 INFO L87 Difference]: Start difference. First operand 4624 states and 6343 transitions. Second operand 26 states. [2018-11-12 19:03:51,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:03:51,858 INFO L93 Difference]: Finished difference Result 10554 states and 14131 transitions. [2018-11-12 19:03:51,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-12 19:03:51,858 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 422 [2018-11-12 19:03:51,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:03:51,885 INFO L225 Difference]: With dead ends: 10554 [2018-11-12 19:03:51,885 INFO L226 Difference]: Without dead ends: 4996 [2018-11-12 19:03:51,913 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 434 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=300, Invalid=1182, Unknown=0, NotChecked=0, Total=1482 [2018-11-12 19:03:51,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4996 states. [2018-11-12 19:03:52,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4996 to 4994. [2018-11-12 19:03:52,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4994 states. [2018-11-12 19:03:52,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4994 states to 4994 states and 6720 transitions. [2018-11-12 19:03:52,072 INFO L78 Accepts]: Start accepts. Automaton has 4994 states and 6720 transitions. Word has length 422 [2018-11-12 19:03:52,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:03:52,073 INFO L480 AbstractCegarLoop]: Abstraction has 4994 states and 6720 transitions. [2018-11-12 19:03:52,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-12 19:03:52,073 INFO L276 IsEmpty]: Start isEmpty. Operand 4994 states and 6720 transitions. [2018-11-12 19:03:52,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2018-11-12 19:03:52,110 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:03:52,111 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, 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, 3, 3, 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] [2018-11-12 19:03:52,111 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:03:52,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:03:52,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1733653244, now seen corresponding path program 1 times [2018-11-12 19:03:52,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:03:52,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:03:52,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:03:52,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:03:52,114 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:03:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:03:53,333 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:03:53,539 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-12 19:03:53,752 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:03:54,147 WARN L179 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-11-12 19:03:55,088 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 202 proven. 317 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:03:55,089 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:03:55,089 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:03:55,089 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 449 with the following transitions: [2018-11-12 19:03:55,089 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [830], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-12 19:03:55,094 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:03:55,094 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:03:55,160 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:03:55,307 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:03:55,307 INFO L272 AbstractInterpreter]: Visited 163 different actions 320 times. Merged at 5 different actions 5 times. Never widened. Performed 3273 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3273 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:03:55,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:03:55,315 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:03:55,924 INFO L227 lantSequenceWeakener]: Weakened 87 states. On average, predicates are now at 80.43% of their original sizes. [2018-11-12 19:03:55,924 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:03:56,434 INFO L415 sIntCurrentIteration]: We unified 447 AI predicates to 447 [2018-11-12 19:03:56,434 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:03:56,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:03:56,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [15] total 36 [2018-11-12 19:03:56,435 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:03:56,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 19:03:56,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 19:03:56,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2018-11-12 19:03:56,436 INFO L87 Difference]: Start difference. First operand 4994 states and 6720 transitions. Second operand 23 states. [2018-11-12 19:04:13,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:04:13,782 INFO L93 Difference]: Finished difference Result 9613 states and 13090 transitions. [2018-11-12 19:04:13,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-12 19:04:13,782 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 448 [2018-11-12 19:04:13,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:04:13,806 INFO L225 Difference]: With dead ends: 9613 [2018-11-12 19:04:13,807 INFO L226 Difference]: Without dead ends: 5178 [2018-11-12 19:04:13,824 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 469 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=375, Invalid=1605, Unknown=0, NotChecked=0, Total=1980 [2018-11-12 19:04:13,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5178 states. [2018-11-12 19:04:13,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5178 to 4992. [2018-11-12 19:04:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4992 states. [2018-11-12 19:04:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 6690 transitions. [2018-11-12 19:04:13,950 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 6690 transitions. Word has length 448 [2018-11-12 19:04:13,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:04:13,951 INFO L480 AbstractCegarLoop]: Abstraction has 4992 states and 6690 transitions. [2018-11-12 19:04:13,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 19:04:13,951 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 6690 transitions. [2018-11-12 19:04:13,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2018-11-12 19:04:13,987 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:04:13,987 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, 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, 3, 3, 3, 3, 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] [2018-11-12 19:04:13,988 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:04:13,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:04:13,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1502693648, now seen corresponding path program 1 times [2018-11-12 19:04:13,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:04:13,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:04:13,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:04:13,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:04:13,990 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:04:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:04:14,480 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:04:14,662 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-12 19:04:14,884 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:04:15,272 WARN L179 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-11-12 19:04:16,420 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 305 proven. 226 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:04:16,420 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:04:16,420 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:04:16,421 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 459 with the following transitions: [2018-11-12 19:04:16,421 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [698], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [830], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-12 19:04:16,424 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:04:16,424 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:04:16,482 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:04:16,645 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:04:16,645 INFO L272 AbstractInterpreter]: Visited 163 different actions 319 times. Merged at 4 different actions 4 times. Never widened. Performed 3379 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3379 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:04:16,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:04:16,656 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:04:17,081 INFO L227 lantSequenceWeakener]: Weakened 202 states. On average, predicates are now at 77.34% of their original sizes. [2018-11-12 19:04:17,082 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:04:17,585 INFO L415 sIntCurrentIteration]: We unified 457 AI predicates to 457 [2018-11-12 19:04:17,585 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:04:17,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:04:17,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [12] total 33 [2018-11-12 19:04:17,585 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:04:17,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 19:04:17,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 19:04:17,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2018-11-12 19:04:17,587 INFO L87 Difference]: Start difference. First operand 4992 states and 6690 transitions. Second operand 23 states. [2018-11-12 19:04:44,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:04:44,214 INFO L93 Difference]: Finished difference Result 10554 states and 14079 transitions. [2018-11-12 19:04:44,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-12 19:04:44,214 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 458 [2018-11-12 19:04:44,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:04:44,233 INFO L225 Difference]: With dead ends: 10554 [2018-11-12 19:04:44,234 INFO L226 Difference]: Without dead ends: 5180 [2018-11-12 19:04:44,245 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 467 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=198, Invalid=858, Unknown=0, NotChecked=0, Total=1056 [2018-11-12 19:04:44,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2018-11-12 19:04:44,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 4992. [2018-11-12 19:04:44,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4992 states. [2018-11-12 19:04:44,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 6690 transitions. [2018-11-12 19:04:44,368 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 6690 transitions. Word has length 458 [2018-11-12 19:04:44,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:04:44,369 INFO L480 AbstractCegarLoop]: Abstraction has 4992 states and 6690 transitions. [2018-11-12 19:04:44,369 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 19:04:44,369 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 6690 transitions. [2018-11-12 19:04:44,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2018-11-12 19:04:44,404 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:04:44,404 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:04:44,404 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:04:44,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:04:44,405 INFO L82 PathProgramCache]: Analyzing trace with hash 944991339, now seen corresponding path program 1 times [2018-11-12 19:04:44,405 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:04:44,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:04:44,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:04:44,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:04:44,406 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:04:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:04:44,936 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:04:45,132 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-12 19:04:45,362 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:04:45,902 WARN L179 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-11-12 19:04:46,178 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-11-12 19:04:46,710 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 289 proven. 267 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:04:46,711 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:04:46,711 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:04:46,711 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 484 with the following transitions: [2018-11-12 19:04:46,711 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [798], [799], [803], [807], [811], [815], [819], [823], [827], [830], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-12 19:04:46,714 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:04:46,714 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:04:46,791 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:04:46,952 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:04:46,952 INFO L272 AbstractInterpreter]: Visited 163 different actions 319 times. Merged at 4 different actions 4 times. Never widened. Performed 3379 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3379 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:04:46,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:04:46,960 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:04:47,939 INFO L227 lantSequenceWeakener]: Weakened 202 states. On average, predicates are now at 77.99% of their original sizes. [2018-11-12 19:04:47,939 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:04:48,524 INFO L415 sIntCurrentIteration]: We unified 482 AI predicates to 482 [2018-11-12 19:04:48,524 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:04:48,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:04:48,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [13] total 37 [2018-11-12 19:04:48,525 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:04:48,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-12 19:04:48,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-12 19:04:48,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=523, Unknown=0, NotChecked=0, Total=650 [2018-11-12 19:04:48,527 INFO L87 Difference]: Start difference. First operand 4992 states and 6690 transitions. Second operand 26 states. [2018-11-12 19:05:12,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:05:12,120 INFO L93 Difference]: Finished difference Result 10738 states and 14287 transitions. [2018-11-12 19:05:12,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-12 19:05:12,121 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 483 [2018-11-12 19:05:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:05:12,155 INFO L225 Difference]: With dead ends: 10738 [2018-11-12 19:05:12,155 INFO L226 Difference]: Without dead ends: 5180 [2018-11-12 19:05:12,169 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 495 GetRequests, 458 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 399 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=300, Invalid=1182, Unknown=0, NotChecked=0, Total=1482 [2018-11-12 19:05:12,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2018-11-12 19:05:12,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 4992. [2018-11-12 19:05:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4992 states. [2018-11-12 19:05:12,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 6690 transitions. [2018-11-12 19:05:12,280 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 6690 transitions. Word has length 483 [2018-11-12 19:05:12,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:05:12,281 INFO L480 AbstractCegarLoop]: Abstraction has 4992 states and 6690 transitions. [2018-11-12 19:05:12,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-11-12 19:05:12,281 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 6690 transitions. [2018-11-12 19:05:12,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2018-11-12 19:05:12,305 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:05:12,305 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:05:12,305 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:05:12,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:05:12,306 INFO L82 PathProgramCache]: Analyzing trace with hash -2109223844, now seen corresponding path program 1 times [2018-11-12 19:05:12,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:05:12,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:05:12,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:05:12,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:05:12,307 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:05:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:05:12,808 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:05:12,996 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-12 19:05:13,559 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 276 proven. 288 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:05:13,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:05:13,560 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:05:13,560 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 497 with the following transitions: [2018-11-12 19:05:13,560 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [830], [831], [835], [839], [843], [847], [850], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-12 19:05:13,563 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:05:13,563 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:05:13,630 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:05:13,775 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:05:13,775 INFO L272 AbstractInterpreter]: Visited 168 different actions 329 times. Merged at 4 different actions 4 times. Never widened. Performed 3499 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3499 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:05:13,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:05:13,786 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:05:14,737 INFO L227 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 77.37% of their original sizes. [2018-11-12 19:05:14,737 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:05:15,417 INFO L415 sIntCurrentIteration]: We unified 495 AI predicates to 495 [2018-11-12 19:05:15,418 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:05:15,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:05:15,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [12] total 30 [2018-11-12 19:05:15,418 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:05:15,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-12 19:05:15,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-12 19:05:15,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=305, Unknown=0, NotChecked=0, Total=380 [2018-11-12 19:05:15,420 INFO L87 Difference]: Start difference. First operand 4992 states and 6690 transitions. Second operand 20 states. [2018-11-12 19:05:38,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:05:38,647 INFO L93 Difference]: Finished difference Result 10554 states and 14079 transitions. [2018-11-12 19:05:38,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-11-12 19:05:38,647 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 496 [2018-11-12 19:05:38,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:05:38,664 INFO L225 Difference]: With dead ends: 10554 [2018-11-12 19:05:38,664 INFO L226 Difference]: Without dead ends: 5180 [2018-11-12 19:05:38,676 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 505 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2018-11-12 19:05:38,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5180 states. [2018-11-12 19:05:38,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5180 to 4992. [2018-11-12 19:05:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4992 states. [2018-11-12 19:05:38,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 6690 transitions. [2018-11-12 19:05:38,777 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 6690 transitions. Word has length 496 [2018-11-12 19:05:38,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:05:38,777 INFO L480 AbstractCegarLoop]: Abstraction has 4992 states and 6690 transitions. [2018-11-12 19:05:38,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-12 19:05:38,778 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 6690 transitions. [2018-11-12 19:05:38,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2018-11-12 19:05:38,792 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:05:38,793 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:05:38,793 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:05:38,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:05:38,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1936069300, now seen corresponding path program 1 times [2018-11-12 19:05:38,794 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:05:38,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:05:38,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:05:38,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:05:38,795 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:05:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:05:39,317 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:05:40,156 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 264 proven. 300 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:05:40,156 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:05:40,156 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:05:40,157 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 509 with the following transitions: [2018-11-12 19:05:40,157 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [830], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [898], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-12 19:05:40,159 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:05:40,159 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:05:40,215 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:05:40,406 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:05:40,407 INFO L272 AbstractInterpreter]: Visited 180 different actions 353 times. Merged at 4 different actions 4 times. Never widened. Performed 3766 root evaluator evaluations with a maximum evaluation depth of 6. Performed 3766 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:05:40,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:05:40,417 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:05:40,972 INFO L227 lantSequenceWeakener]: Weakened 173 states. On average, predicates are now at 78.11% of their original sizes. [2018-11-12 19:05:40,972 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:05:41,449 INFO L415 sIntCurrentIteration]: We unified 507 AI predicates to 507 [2018-11-12 19:05:41,449 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:05:41,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:05:41,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [14] total 35 [2018-11-12 19:05:41,450 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:05:41,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 19:05:41,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 19:05:41,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2018-11-12 19:05:41,452 INFO L87 Difference]: Start difference. First operand 4992 states and 6690 transitions. Second operand 23 states. [2018-11-12 19:06:04,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:06:04,836 INFO L93 Difference]: Finished difference Result 10736 states and 14285 transitions. [2018-11-12 19:06:04,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-12 19:06:04,836 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 508 [2018-11-12 19:06:04,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:06:04,852 INFO L225 Difference]: With dead ends: 10736 [2018-11-12 19:06:04,853 INFO L226 Difference]: Without dead ends: 5178 [2018-11-12 19:06:04,865 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 520 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=266, Invalid=994, Unknown=0, NotChecked=0, Total=1260 [2018-11-12 19:06:04,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5178 states. [2018-11-12 19:06:04,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5178 to 4990. [2018-11-12 19:06:04,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4990 states. [2018-11-12 19:06:04,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4990 states to 4990 states and 6688 transitions. [2018-11-12 19:06:04,964 INFO L78 Accepts]: Start accepts. Automaton has 4990 states and 6688 transitions. Word has length 508 [2018-11-12 19:06:04,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:06:04,965 INFO L480 AbstractCegarLoop]: Abstraction has 4990 states and 6688 transitions. [2018-11-12 19:06:04,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 19:06:04,965 INFO L276 IsEmpty]: Start isEmpty. Operand 4990 states and 6688 transitions. [2018-11-12 19:06:04,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2018-11-12 19:06:04,980 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:06:04,980 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:06:04,981 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:06:04,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:06:04,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1265848772, now seen corresponding path program 1 times [2018-11-12 19:06:04,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:06:04,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:06:04,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:06:04,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:06:04,983 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:06:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:06:06,573 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 363 proven. 483 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:06:06,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:06:06,573 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:06:06,573 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 537 with the following transitions: [2018-11-12 19:06:06,574 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [566], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [830], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-12 19:06:06,576 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:06:06,576 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:06:06,631 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:06:06,931 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:06:06,931 INFO L272 AbstractInterpreter]: Visited 164 different actions 484 times. Merged at 7 different actions 14 times. Never widened. Performed 5156 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5156 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:06:06,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:06:06,938 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:06:07,493 INFO L227 lantSequenceWeakener]: Weakened 204 states. On average, predicates are now at 77.79% of their original sizes. [2018-11-12 19:06:07,493 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:06:07,865 INFO L415 sIntCurrentIteration]: We unified 535 AI predicates to 535 [2018-11-12 19:06:07,866 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:06:07,866 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:06:07,866 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [15] total 30 [2018-11-12 19:06:07,867 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:06:07,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-12 19:06:07,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-12 19:06:07,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2018-11-12 19:06:07,869 INFO L87 Difference]: Start difference. First operand 4990 states and 6688 transitions. Second operand 17 states. [2018-11-12 19:06:27,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:06:27,056 INFO L93 Difference]: Finished difference Result 10292 states and 13773 transitions. [2018-11-12 19:06:27,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 19:06:27,057 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 536 [2018-11-12 19:06:27,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:06:27,073 INFO L225 Difference]: With dead ends: 10292 [2018-11-12 19:06:27,073 INFO L226 Difference]: Without dead ends: 4989 [2018-11-12 19:06:27,084 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 546 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2018-11-12 19:06:27,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4989 states. [2018-11-12 19:06:27,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4989 to 4620. [2018-11-12 19:06:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4620 states. [2018-11-12 19:06:27,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4620 states to 4620 states and 6300 transitions. [2018-11-12 19:06:27,170 INFO L78 Accepts]: Start accepts. Automaton has 4620 states and 6300 transitions. Word has length 536 [2018-11-12 19:06:27,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:06:27,171 INFO L480 AbstractCegarLoop]: Abstraction has 4620 states and 6300 transitions. [2018-11-12 19:06:27,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-12 19:06:27,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4620 states and 6300 transitions. [2018-11-12 19:06:27,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2018-11-12 19:06:27,186 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:06:27,186 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:06:27,186 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:06:27,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:06:27,187 INFO L82 PathProgramCache]: Analyzing trace with hash 20863496, now seen corresponding path program 1 times [2018-11-12 19:06:27,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:06:27,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:06:27,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:06:27,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:06:27,188 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:06:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:06:28,051 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:06:28,535 INFO L134 CoverageAnalysis]: Checked inductivity of 917 backedges. 484 proven. 112 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-11-12 19:06:28,536 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:06:28,536 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:06:28,536 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 559 with the following transitions: [2018-11-12 19:06:28,536 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [659], [663], [666], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [830], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-11-12 19:06:28,539 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:06:28,539 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:06:28,593 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:06:28,924 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:06:28,924 INFO L272 AbstractInterpreter]: Visited 164 different actions 486 times. Merged at 7 different actions 16 times. Never widened. Performed 5340 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5340 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:06:28,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:06:28,934 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-11-12 19:06:29,364 INFO L227 lantSequenceWeakener]: Weakened 555 states. On average, predicates are now at 80.4% of their original sizes. [2018-11-12 19:06:29,364 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:06:29,374 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:06:29,378 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:06:29,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:06:29 BoogieIcfgContainer [2018-11-12 19:06:29,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:06:29,379 INFO L168 Benchmark]: Toolchain (without parser) took 225756.64 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -697.4 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-12 19:06:29,380 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-11-12 19:06:29,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.35 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-11-12 19:06:29,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 154.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -830.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2018-11-12 19:06:29,382 INFO L168 Benchmark]: Boogie Preprocessor took 104.25 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. [2018-11-12 19:06:29,383 INFO L168 Benchmark]: RCFGBuilder took 3596.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 133.4 MB). Peak memory consumption was 133.4 MB. Max. memory is 7.1 GB. [2018-11-12 19:06:29,383 INFO L168 Benchmark]: TraceAbstraction took 221066.34 ms. Allocated memory was 2.3 GB in the beginning and 4.5 GB in the end (delta: 2.3 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -53.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-11-12 19:06:29,388 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 830.35 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 154.39 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -830.5 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.25 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 3596.29 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 133.4 MB). Peak memory consumption was 133.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221066.34 ms. Allocated memory was 2.3 GB in the beginning and 4.5 GB in the end (delta: 2.3 GB). Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: -53.1 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 193]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 193). Cancelled while BasicCegarLoop was analyzing trace of length 559 with TraceHistMax 5,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 220.9s OverallTime, 14 OverallIterations, 5 TraceHistogramMax, 187.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2624 SDtfs, 33045 SDslu, 2605 SDs, 0 SdLazy, 34274 SolverSat, 2551 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.8s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 3812 GetRequests, 3542 SyntacticMatches, 4 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2190 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4994occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.4s AbstIntTime, 9 AbstIntIterations, 9 AbstIntStrong, 0.9978320725201069 AbsIntWeakeningRatio, 0.06938871843285344 AbsIntAvgWeakeningVarsNumRemoved, 17.574463063488317 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 1455 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 4326 NumberOfCodeBlocks, 4326 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4313 ConstructedInterpolants, 0 QuantifiedInterpolants, 16937048 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 2394/4573 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown