java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:17:17,808 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:17:17,810 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:17:17,824 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:17:17,824 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:17:17,825 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:17:17,827 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:17:17,828 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:17:17,831 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:17:17,831 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:17:17,835 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:17:17,835 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:17:17,836 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:17:17,838 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:17:17,842 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:17:17,849 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:17:17,850 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:17:17,854 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:17:17,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:17:17,860 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:17:17,863 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:17:17,864 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:17:17,869 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:17:17,870 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:17:17,870 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:17:17,871 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:17:17,872 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:17:17,875 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:17:17,876 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:17:17,877 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:17:17,877 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:17:17,878 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:17:17,878 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:17:17,878 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:17:17,881 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:17:17,882 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:17:17,883 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 19:17:17,909 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:17:17,910 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:17:17,911 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:17:17,911 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:17:17,911 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:17:17,912 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:17:17,912 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:17:17,912 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:17:17,912 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:17:17,913 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:17:17,914 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:17:17,914 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:17:17,914 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:17:17,915 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:17:17,915 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:17:17,915 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:17:17,916 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:17:17,916 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:17:17,916 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:17:17,916 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:17:17,916 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:17:17,917 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:17:17,917 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:17:17,917 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:17:17,917 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:17:17,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:17:17,918 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:17:17,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:17:17,920 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:17:17,920 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:17:17,920 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:17:17,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:17:17,920 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:17:17,921 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:17:17,921 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:17:17,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:17:18,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:17:18,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:17:18,009 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:17:18,010 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:17:18,010 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c [2018-11-12 19:17:18,088 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b5495b2/6a83992a70a44bb8b1a607f90ea227ef/FLAGd922049a5 [2018-11-12 19:17:18,825 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:17:18,825 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label56_true-unreach-call.c [2018-11-12 19:17:18,846 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b5495b2/6a83992a70a44bb8b1a607f90ea227ef/FLAGd922049a5 [2018-11-12 19:17:18,864 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7b5495b2/6a83992a70a44bb8b1a607f90ea227ef [2018-11-12 19:17:18,876 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:17:18,878 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:17:18,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:17:18,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:17:18,886 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:17:18,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:17:18" (1/1) ... [2018-11-12 19:17:18,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dafde1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:18, skipping insertion in model container [2018-11-12 19:17:18,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:17:18" (1/1) ... [2018-11-12 19:17:18,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:17:19,016 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:17:19,888 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:17:19,896 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:17:20,210 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:17:20,234 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:17:20,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20 WrapperNode [2018-11-12 19:17:20,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:17:20,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:17:20,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:17:20,237 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:17:20,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (1/1) ... [2018-11-12 19:17:20,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (1/1) ... [2018-11-12 19:17:20,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:17:20,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:17:20,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:17:20,467 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:17:20,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (1/1) ... [2018-11-12 19:17:20,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (1/1) ... [2018-11-12 19:17:20,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (1/1) ... [2018-11-12 19:17:20,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (1/1) ... [2018-11-12 19:17:20,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (1/1) ... [2018-11-12 19:17:20,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (1/1) ... [2018-11-12 19:17:20,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (1/1) ... [2018-11-12 19:17:20,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:17:20,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:17:20,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:17:20,642 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:17:20,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (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 19:17:20,722 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:17:20,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:17:20,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:17:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:17:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:17:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:17:20,723 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:17:20,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:17:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:17:20,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:17:20,724 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:17:27,555 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:17:27,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:17:27 BoogieIcfgContainer [2018-11-12 19:17:27,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:17:27,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:17:27,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:17:27,561 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:17:27,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:17:18" (1/3) ... [2018-11-12 19:17:27,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42491ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:17:27, skipping insertion in model container [2018-11-12 19:17:27,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:17:20" (2/3) ... [2018-11-12 19:17:27,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42491ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:17:27, skipping insertion in model container [2018-11-12 19:17:27,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:17:27" (3/3) ... [2018-11-12 19:17:27,565 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label56_true-unreach-call.c [2018-11-12 19:17:27,574 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:17:27,582 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:17:27,599 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:17:27,642 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:17:27,642 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:17:27,643 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:17:27,643 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:17:27,643 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:17:27,643 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:17:27,643 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:17:27,644 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:17:27,679 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-12 19:17:27,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-12 19:17:27,687 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:17:27,689 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] [2018-11-12 19:17:27,691 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:17:27,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:17:27,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1936473164, now seen corresponding path program 1 times [2018-11-12 19:17:27,699 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:17:27,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:27,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:17:27,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:27,745 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:17:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:17:28,205 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 19:17:28,208 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:17:28,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:17:28,209 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:17:28,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:17:28,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:17:28,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:17:28,235 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-12 19:17:34,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:17:34,565 INFO L93 Difference]: Finished difference Result 1501 states and 2761 transitions. [2018-11-12 19:17:34,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:17:34,566 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2018-11-12 19:17:34,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:17:34,591 INFO L225 Difference]: With dead ends: 1501 [2018-11-12 19:17:34,592 INFO L226 Difference]: Without dead ends: 1057 [2018-11-12 19:17:34,602 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 19:17:34,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2018-11-12 19:17:34,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 744. [2018-11-12 19:17:34,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 19:17:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1125 transitions. [2018-11-12 19:17:34,711 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1125 transitions. Word has length 40 [2018-11-12 19:17:34,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:17:34,712 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1125 transitions. [2018-11-12 19:17:34,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:17:34,712 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1125 transitions. [2018-11-12 19:17:34,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-11-12 19:17:34,718 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:17:34,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:17:34,719 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:17:34,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:17:34,719 INFO L82 PathProgramCache]: Analyzing trace with hash -2019574921, now seen corresponding path program 1 times [2018-11-12 19:17:34,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:17:34,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:34,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:17:34,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:34,721 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:17:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:17:34,971 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:17:34,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:17:34,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:17:34,972 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:17:34,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:17:34,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:17:34,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:17:34,975 INFO L87 Difference]: Start difference. First operand 744 states and 1125 transitions. Second operand 4 states. [2018-11-12 19:17:40,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:17:40,721 INFO L93 Difference]: Finished difference Result 2730 states and 4237 transitions. [2018-11-12 19:17:40,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:17:40,722 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2018-11-12 19:17:40,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:17:40,741 INFO L225 Difference]: With dead ends: 2730 [2018-11-12 19:17:40,741 INFO L226 Difference]: Without dead ends: 1992 [2018-11-12 19:17:40,749 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:17:40,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1992 states. [2018-11-12 19:17:40,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1992 to 1990. [2018-11-12 19:17:40,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1990 states. [2018-11-12 19:17:40,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2757 transitions. [2018-11-12 19:17:40,855 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2757 transitions. Word has length 110 [2018-11-12 19:17:40,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:17:40,856 INFO L480 AbstractCegarLoop]: Abstraction has 1990 states and 2757 transitions. [2018-11-12 19:17:40,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:17:40,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2757 transitions. [2018-11-12 19:17:40,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-11-12 19:17:40,871 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:17:40,872 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:17:40,872 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:17:40,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:17:40,874 INFO L82 PathProgramCache]: Analyzing trace with hash 2084991877, now seen corresponding path program 1 times [2018-11-12 19:17:40,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:17:40,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:40,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:17:40,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:40,876 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:17:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:17:41,740 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 69 proven. 71 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-12 19:17:41,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:17:41,741 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:17:41,742 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-11-12 19:17:41,744 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:17:41,800 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:17:41,800 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:17:42,430 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:17:44,252 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:17:44,255 INFO L272 AbstractInterpreter]: Visited 104 different actions 692 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Performed 12443 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12443 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 19:17:44,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:17:44,300 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:17:45,223 INFO L227 lantSequenceWeakener]: Weakened 44 states. On average, predicates are now at 80.06% of their original sizes. [2018-11-12 19:17:45,225 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:17:48,208 INFO L415 sIntCurrentIteration]: We unified 215 AI predicates to 215 [2018-11-12 19:17:48,209 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:17:48,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:17:48,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-12 19:17:48,211 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:17:48,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-12 19:17:48,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-12 19:17:48,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-11-12 19:17:48,212 INFO L87 Difference]: Start difference. First operand 1990 states and 2757 transitions. Second operand 19 states. [2018-11-12 19:18:51,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:18:51,696 INFO L93 Difference]: Finished difference Result 6278 states and 8158 transitions. [2018-11-12 19:18:51,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-12 19:18:51,696 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 216 [2018-11-12 19:18:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:18:51,718 INFO L225 Difference]: With dead ends: 6278 [2018-11-12 19:18:51,718 INFO L226 Difference]: Without dead ends: 4294 [2018-11-12 19:18:51,728 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 231 GetRequests, 163 SyntacticMatches, 36 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2018-11-12 19:18:51,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2018-11-12 19:18:51,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 3795. [2018-11-12 19:18:51,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3795 states. [2018-11-12 19:18:51,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 4626 transitions. [2018-11-12 19:18:51,840 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 4626 transitions. Word has length 216 [2018-11-12 19:18:51,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:18:51,841 INFO L480 AbstractCegarLoop]: Abstraction has 3795 states and 4626 transitions. [2018-11-12 19:18:51,841 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-12 19:18:51,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 4626 transitions. [2018-11-12 19:18:51,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2018-11-12 19:18:51,854 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:18:51,855 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:51,855 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:18:51,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:18:51,856 INFO L82 PathProgramCache]: Analyzing trace with hash -84886443, now seen corresponding path program 1 times [2018-11-12 19:18:51,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:18:51,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:51,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:18:51,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:51,857 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:18:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:18:52,858 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2018-11-12 19:18:52,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:18:52,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:18:52,859 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:18:52,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:18:52,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:18:52,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:18:52,861 INFO L87 Difference]: Start difference. First operand 3795 states and 4626 transitions. Second operand 5 states. [2018-11-12 19:18:56,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:18:56,613 INFO L93 Difference]: Finished difference Result 7764 states and 10190 transitions. [2018-11-12 19:18:56,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-12 19:18:56,615 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 465 [2018-11-12 19:18:56,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:18:56,647 INFO L225 Difference]: With dead ends: 7764 [2018-11-12 19:18:56,647 INFO L226 Difference]: Without dead ends: 5780 [2018-11-12 19:18:56,658 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:18:56,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2018-11-12 19:18:57,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 5751. [2018-11-12 19:18:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5751 states. [2018-11-12 19:18:57,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 6983 transitions. [2018-11-12 19:18:57,426 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 6983 transitions. Word has length 465 [2018-11-12 19:18:57,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:18:57,427 INFO L480 AbstractCegarLoop]: Abstraction has 5751 states and 6983 transitions. [2018-11-12 19:18:57,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:18:57,427 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 6983 transitions. [2018-11-12 19:18:57,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2018-11-12 19:18:57,443 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:18:57,444 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:18:57,444 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:18:57,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:18:57,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1830509708, now seen corresponding path program 1 times [2018-11-12 19:18:57,445 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:18:57,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:57,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:18:57,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:18:57,447 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:18:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:18:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 179 proven. 86 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-12 19:18:58,071 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:18:58,071 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:18:58,072 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 477 with the following transitions: [2018-11-12 19:18:58,073 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:18:58,084 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:18:58,086 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:18:58,319 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:18:58,645 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:18:58,645 INFO L272 AbstractInterpreter]: Visited 284 different actions 562 times. Merged at 5 different actions 5 times. Never widened. Performed 8044 root evaluator evaluations with a maximum evaluation depth of 6. Performed 8044 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 19:18:58,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:18:58,652 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:18:59,431 INFO L227 lantSequenceWeakener]: Weakened 83 states. On average, predicates are now at 79.45% of their original sizes. [2018-11-12 19:18:59,431 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:18:59,850 INFO L415 sIntCurrentIteration]: We unified 475 AI predicates to 475 [2018-11-12 19:18:59,850 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:18:59,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:18:59,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [8] total 26 [2018-11-12 19:18:59,851 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:18:59,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-12 19:18:59,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-12 19:18:59,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-11-12 19:18:59,852 INFO L87 Difference]: Start difference. First operand 5751 states and 6983 transitions. Second operand 20 states. [2018-11-12 19:19:34,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:19:34,651 INFO L93 Difference]: Finished difference Result 10922 states and 13507 transitions. [2018-11-12 19:19:34,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-12 19:19:34,651 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 476 [2018-11-12 19:19:34,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:19:34,682 INFO L225 Difference]: With dead ends: 10922 [2018-11-12 19:19:34,682 INFO L226 Difference]: Without dead ends: 6982 [2018-11-12 19:19:34,699 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 492 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=254, Invalid=1078, Unknown=0, NotChecked=0, Total=1332 [2018-11-12 19:19:34,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6982 states. [2018-11-12 19:19:34,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6982 to 6975. [2018-11-12 19:19:34,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6975 states. [2018-11-12 19:19:34,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 8297 transitions. [2018-11-12 19:19:34,864 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 8297 transitions. Word has length 476 [2018-11-12 19:19:34,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:19:34,865 INFO L480 AbstractCegarLoop]: Abstraction has 6975 states and 8297 transitions. [2018-11-12 19:19:34,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-12 19:19:34,865 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 8297 transitions. [2018-11-12 19:19:34,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2018-11-12 19:19:34,884 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:19:34,885 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:19:34,885 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:19:34,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:19:34,886 INFO L82 PathProgramCache]: Analyzing trace with hash -838240660, now seen corresponding path program 1 times [2018-11-12 19:19:34,886 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:19:34,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:19:34,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:19:34,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:19:34,888 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:19:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:19:35,392 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:19:35,987 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 179 proven. 117 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-12 19:19:35,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:19:35,988 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:19:35,988 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 508 with the following transitions: [2018-11-12 19:19:35,989 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:19:35,997 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:19:35,997 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:19:36,150 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:19:37,870 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:19:37,870 INFO L272 AbstractInterpreter]: Visited 285 different actions 1412 times. Merged at 8 different actions 34 times. Never widened. Performed 23068 root evaluator evaluations with a maximum evaluation depth of 6. Performed 23068 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 8 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:19:37,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:19:37,880 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:19:37,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:19:37,880 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:19:37,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:19:37,890 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:19:38,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:19:38,082 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:19:38,728 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-12 19:19:38,728 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:19:39,663 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-12 19:19:39,685 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 19:19:39,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-12 19:19:39,686 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 19:19:39,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 19:19:39,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 19:19:39,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-11-12 19:19:39,689 INFO L87 Difference]: Start difference. First operand 6975 states and 8297 transitions. Second operand 11 states. [2018-11-12 19:19:48,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:19:48,887 INFO L93 Difference]: Finished difference Result 15405 states and 19269 transitions. [2018-11-12 19:19:48,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 19:19:48,896 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 507 [2018-11-12 19:19:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:19:48,946 INFO L225 Difference]: With dead ends: 15405 [2018-11-12 19:19:48,946 INFO L226 Difference]: Without dead ends: 10241 [2018-11-12 19:19:48,979 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1054 GetRequests, 1023 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=204, Invalid=552, Unknown=0, NotChecked=0, Total=756 [2018-11-12 19:19:48,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10241 states. [2018-11-12 19:19:49,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10241 to 9590. [2018-11-12 19:19:49,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9590 states. [2018-11-12 19:19:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9590 states to 9590 states and 10780 transitions. [2018-11-12 19:19:49,507 INFO L78 Accepts]: Start accepts. Automaton has 9590 states and 10780 transitions. Word has length 507 [2018-11-12 19:19:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:19:49,508 INFO L480 AbstractCegarLoop]: Abstraction has 9590 states and 10780 transitions. [2018-11-12 19:19:49,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 19:19:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 9590 states and 10780 transitions. [2018-11-12 19:19:49,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2018-11-12 19:19:49,525 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:19:49,525 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:19:49,526 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:19:49,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:19:49,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1881709114, now seen corresponding path program 1 times [2018-11-12 19:19:49,526 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:19:49,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:19:49,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:19:49,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:19:49,529 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:19:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:19:50,024 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-11-12 19:19:50,024 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:19:50,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:19:50,025 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:19:50,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:19:50,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:19:50,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:19:50,026 INFO L87 Difference]: Start difference. First operand 9590 states and 10780 transitions. Second operand 3 states. [2018-11-12 19:19:52,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:19:52,494 INFO L93 Difference]: Finished difference Result 17366 states and 19847 transitions. [2018-11-12 19:19:52,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:19:52,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 556 [2018-11-12 19:19:52,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:19:52,526 INFO L225 Difference]: With dead ends: 17366 [2018-11-12 19:19:52,526 INFO L226 Difference]: Without dead ends: 9897 [2018-11-12 19:19:52,546 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:19:52,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9897 states. [2018-11-12 19:19:52,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9897 to 9589. [2018-11-12 19:19:52,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9589 states. [2018-11-12 19:19:52,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9589 states to 9589 states and 10775 transitions. [2018-11-12 19:19:52,716 INFO L78 Accepts]: Start accepts. Automaton has 9589 states and 10775 transitions. Word has length 556 [2018-11-12 19:19:52,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:19:52,718 INFO L480 AbstractCegarLoop]: Abstraction has 9589 states and 10775 transitions. [2018-11-12 19:19:52,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:19:52,718 INFO L276 IsEmpty]: Start isEmpty. Operand 9589 states and 10775 transitions. [2018-11-12 19:19:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2018-11-12 19:19:52,738 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:19:52,739 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:19:52,739 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:19:52,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:19:52,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1775785065, now seen corresponding path program 1 times [2018-11-12 19:19:52,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:19:52,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:19:52,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:19:52,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:19:52,741 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:19:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:19:53,429 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-12 19:19:53,430 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:19:53,430 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:19:53,430 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 578 with the following transitions: [2018-11-12 19:19:53,431 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:19:53,437 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:19:53,437 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:19:53,611 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:19:55,359 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:19:55,359 INFO L272 AbstractInterpreter]: Visited 286 different actions 1699 times. Merged at 9 different actions 42 times. Widened at 1 different actions 1 times. Performed 28059 root evaluator evaluations with a maximum evaluation depth of 6. Performed 28059 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 14 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:19:55,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:19:55,368 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:19:55,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:19:55,368 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:19:55,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:19:55,384 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:19:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:19:55,563 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:19:55,995 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-12 19:19:55,996 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:19:56,368 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-12 19:19:56,390 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 19:19:56,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2018-11-12 19:19:56,390 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 19:19:56,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-12 19:19:56,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-12 19:19:56,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:19:56,392 INFO L87 Difference]: Start difference. First operand 9589 states and 10775 transitions. Second operand 7 states. [2018-11-12 19:20:00,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:20:00,325 INFO L93 Difference]: Finished difference Result 20838 states and 24159 transitions. [2018-11-12 19:20:00,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 19:20:00,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 577 [2018-11-12 19:20:00,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:20:00,381 INFO L225 Difference]: With dead ends: 20838 [2018-11-12 19:20:00,381 INFO L226 Difference]: Without dead ends: 13370 [2018-11-12 19:20:00,406 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1162 GetRequests, 1152 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:20:00,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13370 states. [2018-11-12 19:20:00,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13370 to 12070. [2018-11-12 19:20:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12070 states. [2018-11-12 19:20:00,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12070 states to 12070 states and 13570 transitions. [2018-11-12 19:20:00,652 INFO L78 Accepts]: Start accepts. Automaton has 12070 states and 13570 transitions. Word has length 577 [2018-11-12 19:20:00,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:20:00,653 INFO L480 AbstractCegarLoop]: Abstraction has 12070 states and 13570 transitions. [2018-11-12 19:20:00,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-12 19:20:00,653 INFO L276 IsEmpty]: Start isEmpty. Operand 12070 states and 13570 transitions. [2018-11-12 19:20:00,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2018-11-12 19:20:00,670 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:20:00,671 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:00,671 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:20:00,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:00,672 INFO L82 PathProgramCache]: Analyzing trace with hash 725121753, now seen corresponding path program 1 times [2018-11-12 19:20:00,672 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:20:00,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:00,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:20:00,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:00,673 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:20:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:20:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 313 proven. 82 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2018-11-12 19:20:01,720 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:20:01,720 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:20:01,721 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 582 with the following transitions: [2018-11-12 19:20:01,721 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [625], [626], [630], [633], [636], [640], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:20:01,728 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:20:01,729 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:20:01,789 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:20:03,317 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:20:03,317 INFO L272 AbstractInterpreter]: Visited 285 different actions 1418 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Performed 25109 root evaluator evaluations with a maximum evaluation depth of 6. Performed 25109 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 6 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-12 19:20:03,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:03,324 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:20:03,896 INFO L227 lantSequenceWeakener]: Weakened 576 states. On average, predicates are now at 80.22% of their original sizes. [2018-11-12 19:20:03,896 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:20:04,000 INFO L415 sIntCurrentIteration]: We unified 580 AI predicates to 580 [2018-11-12 19:20:04,000 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:20:04,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:20:04,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 19:20:04,001 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:20:04,002 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 19:20:04,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 19:20:04,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:20:04,003 INFO L87 Difference]: Start difference. First operand 12070 states and 13570 transitions. Second operand 11 states. [2018-11-12 19:20:26,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:20:26,656 INFO L93 Difference]: Finished difference Result 23601 states and 26660 transitions. [2018-11-12 19:20:26,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 19:20:26,656 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 581 [2018-11-12 19:20:26,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:20:26,696 INFO L225 Difference]: With dead ends: 23601 [2018-11-12 19:20:26,697 INFO L226 Difference]: Without dead ends: 13652 [2018-11-12 19:20:26,714 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 589 GetRequests, 571 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2018-11-12 19:20:26,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13652 states. [2018-11-12 19:20:26,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13652 to 13328. [2018-11-12 19:20:26,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13328 states. [2018-11-12 19:20:26,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13328 states to 13328 states and 14923 transitions. [2018-11-12 19:20:26,940 INFO L78 Accepts]: Start accepts. Automaton has 13328 states and 14923 transitions. Word has length 581 [2018-11-12 19:20:26,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:20:26,941 INFO L480 AbstractCegarLoop]: Abstraction has 13328 states and 14923 transitions. [2018-11-12 19:20:26,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-12 19:20:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 13328 states and 14923 transitions. [2018-11-12 19:20:26,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2018-11-12 19:20:26,960 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:20:26,961 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:20:26,961 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:20:26,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:26,962 INFO L82 PathProgramCache]: Analyzing trace with hash 76751270, now seen corresponding path program 1 times [2018-11-12 19:20:26,962 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:20:26,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:26,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:20:26,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:26,963 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:20:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:20:28,369 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2018-11-12 19:20:28,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:20:28,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:20:28,370 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:20:28,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:20:28,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:20:28,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:20:28,372 INFO L87 Difference]: Start difference. First operand 13328 states and 14923 transitions. Second operand 4 states. [2018-11-12 19:20:33,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:20:33,144 INFO L93 Difference]: Finished difference Result 37625 states and 43581 transitions. [2018-11-12 19:20:33,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:20:33,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 602 [2018-11-12 19:20:33,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:20:33,195 INFO L225 Difference]: With dead ends: 37625 [2018-11-12 19:20:33,195 INFO L226 Difference]: Without dead ends: 16073 [2018-11-12 19:20:33,249 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 19:20:33,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16073 states. [2018-11-12 19:20:33,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16073 to 16064. [2018-11-12 19:20:33,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16064 states. [2018-11-12 19:20:33,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16064 states to 16064 states and 17385 transitions. [2018-11-12 19:20:33,492 INFO L78 Accepts]: Start accepts. Automaton has 16064 states and 17385 transitions. Word has length 602 [2018-11-12 19:20:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:20:33,494 INFO L480 AbstractCegarLoop]: Abstraction has 16064 states and 17385 transitions. [2018-11-12 19:20:33,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:20:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 16064 states and 17385 transitions. [2018-11-12 19:20:33,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2018-11-12 19:20:33,519 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:20:33,520 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:33,520 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:20:33,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:33,521 INFO L82 PathProgramCache]: Analyzing trace with hash 12121246, now seen corresponding path program 1 times [2018-11-12 19:20:33,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:20:33,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:33,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:20:33,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:33,522 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:20:33,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:20:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 697 proven. 62 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2018-11-12 19:20:34,452 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:20:34,452 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:20:34,452 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 758 with the following transitions: [2018-11-12 19:20:34,453 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [293], [295], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [660], [663], [667], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [994], [999], [1001], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:20:34,458 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:20:34,458 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:20:34,646 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:20:36,879 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:20:36,879 INFO L272 AbstractInterpreter]: Visited 291 different actions 1728 times. Merged at 10 different actions 54 times. Widened at 1 different actions 1 times. Performed 28279 root evaluator evaluations with a maximum evaluation depth of 6. Performed 28279 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 15 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:20:36,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:36,887 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:20:36,887 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:20:36,887 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:20:36,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:20:36,898 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:20:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:20:37,112 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:20:37,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2018-11-12 19:20:37,518 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:20:38,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1135 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2018-11-12 19:20:38,382 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:20:38,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 4 [2018-11-12 19:20:38,382 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:20:38,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:20:38,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:20:38,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:20:38,384 INFO L87 Difference]: Start difference. First operand 16064 states and 17385 transitions. Second operand 3 states. [2018-11-12 19:20:40,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:20:40,331 INFO L93 Difference]: Finished difference Result 33380 states and 36728 transitions. [2018-11-12 19:20:40,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:20:40,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 757 [2018-11-12 19:20:40,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:20:40,379 INFO L225 Difference]: With dead ends: 33380 [2018-11-12 19:20:40,379 INFO L226 Difference]: Without dead ends: 20098 [2018-11-12 19:20:40,405 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1522 GetRequests, 1516 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:20:40,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20098 states. [2018-11-12 19:20:40,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20098 to 18558. [2018-11-12 19:20:40,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18558 states. [2018-11-12 19:20:40,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18558 states to 18558 states and 20386 transitions. [2018-11-12 19:20:40,716 INFO L78 Accepts]: Start accepts. Automaton has 18558 states and 20386 transitions. Word has length 757 [2018-11-12 19:20:40,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:20:40,718 INFO L480 AbstractCegarLoop]: Abstraction has 18558 states and 20386 transitions. [2018-11-12 19:20:40,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:20:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 18558 states and 20386 transitions. [2018-11-12 19:20:40,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2018-11-12 19:20:40,748 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:20:40,749 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:20:40,749 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:20:40,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:40,750 INFO L82 PathProgramCache]: Analyzing trace with hash 608706387, now seen corresponding path program 1 times [2018-11-12 19:20:40,750 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:20:40,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:40,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:20:40,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:40,751 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:20:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:20:41,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 974 trivial. 0 not checked. [2018-11-12 19:20:41,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:20:41,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:20:41,464 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:20:41,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:20:41,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:20:41,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:20:41,465 INFO L87 Difference]: Start difference. First operand 18558 states and 20386 transitions. Second operand 4 states. [2018-11-12 19:20:44,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:20:44,675 INFO L93 Difference]: Finished difference Result 56082 states and 62924 transitions. [2018-11-12 19:20:44,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:20:44,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 762 [2018-11-12 19:20:44,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:20:44,770 INFO L225 Difference]: With dead ends: 56082 [2018-11-12 19:20:44,771 INFO L226 Difference]: Without dead ends: 38751 [2018-11-12 19:20:44,818 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 19:20:44,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38751 states. [2018-11-12 19:20:45,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38751 to 35338. [2018-11-12 19:20:45,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35338 states. [2018-11-12 19:20:45,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35338 states to 35338 states and 39208 transitions. [2018-11-12 19:20:45,669 INFO L78 Accepts]: Start accepts. Automaton has 35338 states and 39208 transitions. Word has length 762 [2018-11-12 19:20:45,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:20:45,670 INFO L480 AbstractCegarLoop]: Abstraction has 35338 states and 39208 transitions. [2018-11-12 19:20:45,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:20:45,670 INFO L276 IsEmpty]: Start isEmpty. Operand 35338 states and 39208 transitions. [2018-11-12 19:20:45,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2018-11-12 19:20:45,719 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:20:45,719 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:20:45,720 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:20:45,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:20:45,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1978620738, now seen corresponding path program 1 times [2018-11-12 19:20:45,720 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:20:45,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:45,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:20:45,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:20:45,722 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:20:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:20:46,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 892 trivial. 0 not checked. [2018-11-12 19:20:46,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:20:46,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:20:46,642 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:20:46,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:20:46,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:20:46,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:20:46,644 INFO L87 Difference]: Start difference. First operand 35338 states and 39208 transitions. Second operand 5 states. Received shutdown request... [2018-11-12 19:20:49,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-12 19:20:49,688 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:20:49,693 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:20:49,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:20:49 BoogieIcfgContainer [2018-11-12 19:20:49,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:20:49,695 INFO L168 Benchmark]: Toolchain (without parser) took 210817.57 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 11.4 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-11-12 19:20:49,696 INFO L168 Benchmark]: CDTParser took 0.24 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 19:20:49,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1355.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:20:49,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 230.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -893.6 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. [2018-11-12 19:20:49,698 INFO L168 Benchmark]: Boogie Preprocessor took 174.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:20:49,699 INFO L168 Benchmark]: RCFGBuilder took 6915.11 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 299.9 MB). Peak memory consumption was 299.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:20:49,700 INFO L168 Benchmark]: TraceAbstraction took 202136.67 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 485.3 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-11-12 19:20:49,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1355.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 230.10 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 747.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -893.6 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 174.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6915.11 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 299.9 MB). Peak memory consumption was 299.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202136.67 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 485.3 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 106]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 106). Cancelled while BasicCegarLoop was constructing difference of abstraction (35338states) and FLOYD_HOARE automaton (currently 5 states, 5 states before enhancement),while ReachableStatesComputation was computing reachable states (27190 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 202.0s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 166.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5029 SDtfs, 22366 SDslu, 3376 SDs, 0 SdLazy, 37137 SolverSat, 5456 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 82.8s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 5091 GetRequests, 4906 SyntacticMatches, 47 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35338occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.0s AbstIntTime, 6 AbstIntIterations, 3 AbstIntStrong, 0.9975710692965964 AbsIntWeakeningRatio, 0.07637795275590552 AbsIntAvgWeakeningVarsNumRemoved, 16.615748031496064 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 8395 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 8327 NumberOfCodeBlocks, 8327 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 10149 ConstructedInterpolants, 0 QuantifiedInterpolants, 11543318 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2616 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 10724/11152 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown