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/Problem16_label39_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:23:48,595 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:23:48,600 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:23:48,617 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:23:48,617 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:23:48,619 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:23:48,621 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:23:48,623 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:23:48,626 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:23:48,632 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:23:48,633 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:23:48,633 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:23:48,638 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:23:48,641 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:23:48,642 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:23:48,643 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:23:48,644 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:23:48,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:23:48,652 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:23:48,655 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:23:48,656 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:23:48,658 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:23:48,661 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:23:48,665 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:23:48,665 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:23:48,666 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:23:48,667 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:23:48,670 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:23:48,671 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:23:48,672 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:23:48,672 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:23:48,675 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:23:48,675 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:23:48,675 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:23:48,676 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:23:48,677 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:23:48,677 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 19:23:48,704 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:23:48,705 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:23:48,706 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:23:48,707 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:23:48,707 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:23:48,707 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:23:48,707 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:23:48,708 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:23:48,708 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:23:48,708 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:23:48,708 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:23:48,708 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:23:48,708 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:23:48,709 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:23:48,709 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:23:48,710 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:23:48,710 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:23:48,710 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:23:48,710 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:23:48,710 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:23:48,711 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:23:48,711 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:23:48,711 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:23:48,711 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:23:48,711 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:23:48,712 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:23:48,712 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:23:48,712 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:23:48,712 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:23:48,712 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:23:48,713 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:23:48,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:23:48,713 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:23:48,713 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:23:48,713 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:23:48,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:23:48,780 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:23:48,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:23:48,786 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:23:48,786 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:23:48,788 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label39_true-unreach-call.c [2018-11-12 19:23:48,855 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b563a66/84eae8bfac5745398feb2d2f62de9f73/FLAGad25bc4b8 [2018-11-12 19:23:49,478 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:23:49,479 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label39_true-unreach-call.c [2018-11-12 19:23:49,503 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b563a66/84eae8bfac5745398feb2d2f62de9f73/FLAGad25bc4b8 [2018-11-12 19:23:49,525 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80b563a66/84eae8bfac5745398feb2d2f62de9f73 [2018-11-12 19:23:49,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:23:49,540 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:23:49,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:23:49,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:23:49,546 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:23:49,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:23:49" (1/1) ... [2018-11-12 19:23:49,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7646e791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:49, skipping insertion in model container [2018-11-12 19:23:49,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:23:49" (1/1) ... [2018-11-12 19:23:49,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:23:49,647 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:23:50,387 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:23:50,394 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:23:50,661 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:23:50,682 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:23:50,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50 WrapperNode [2018-11-12 19:23:50,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:23:50,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:23:50,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:23:50,684 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:23:50,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (1/1) ... [2018-11-12 19:23:50,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (1/1) ... [2018-11-12 19:23:50,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:23:50,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:23:50,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:23:50,861 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:23:50,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (1/1) ... [2018-11-12 19:23:50,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (1/1) ... [2018-11-12 19:23:50,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (1/1) ... [2018-11-12 19:23:50,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (1/1) ... [2018-11-12 19:23:50,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (1/1) ... [2018-11-12 19:23:50,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (1/1) ... [2018-11-12 19:23:51,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (1/1) ... [2018-11-12 19:23:51,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:23:51,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:23:51,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:23:51,038 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:23:51,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (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 19:23:51,107 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:23:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:23:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:23:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:23:51,108 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:23:51,108 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:23:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:23:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:23:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:23:51,109 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:23:51,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:23:57,273 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:23:57,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:23:57 BoogieIcfgContainer [2018-11-12 19:23:57,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:23:57,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:23:57,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:23:57,280 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:23:57,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:23:49" (1/3) ... [2018-11-12 19:23:57,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b0ddbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:23:57, skipping insertion in model container [2018-11-12 19:23:57,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:23:50" (2/3) ... [2018-11-12 19:23:57,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b0ddbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:23:57, skipping insertion in model container [2018-11-12 19:23:57,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:23:57" (3/3) ... [2018-11-12 19:23:57,284 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label39_true-unreach-call.c [2018-11-12 19:23:57,296 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:23:57,309 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:23:57,329 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:23:57,384 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:23:57,384 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:23:57,385 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:23:57,385 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:23:57,385 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:23:57,385 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:23:57,385 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:23:57,385 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:23:57,437 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 19:23:57,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-12 19:23:57,451 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:23:57,452 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:23:57,454 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:23:57,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:23:57,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1251899380, now seen corresponding path program 1 times [2018-11-12 19:23:57,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:23:57,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:57,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:23:57,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:23:57,511 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:23:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:23:58,075 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 19:23:58,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:23:58,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:23:58,078 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:23:58,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:23:58,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:23:58,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:23:58,108 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-11-12 19:24:03,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:24:03,209 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-11-12 19:24:03,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:24:03,211 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-11-12 19:24:03,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:24:03,241 INFO L225 Difference]: With dead ends: 1513 [2018-11-12 19:24:03,241 INFO L226 Difference]: Without dead ends: 1097 [2018-11-12 19:24:03,258 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:24:03,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-11-12 19:24:03,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-11-12 19:24:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 19:24:03,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1357 transitions. [2018-11-12 19:24:03,511 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1357 transitions. Word has length 56 [2018-11-12 19:24:03,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:24:03,512 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1357 transitions. [2018-11-12 19:24:03,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:24:03,513 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1357 transitions. [2018-11-12 19:24:03,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-11-12 19:24:03,522 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:24:03,522 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 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 19:24:03,522 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:24:03,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:03,529 INFO L82 PathProgramCache]: Analyzing trace with hash -594797350, now seen corresponding path program 1 times [2018-11-12 19:24:03,529 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:24:03,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:03,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:24:03,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:03,531 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:24:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:24:03,787 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:24:03,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:24:03,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 19:24:03,788 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:24:03,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 19:24:03,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 19:24:03,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 19:24:03,791 INFO L87 Difference]: Start difference. First operand 744 states and 1357 transitions. Second operand 5 states. [2018-11-12 19:24:08,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:24:08,748 INFO L93 Difference]: Finished difference Result 2196 states and 4092 transitions. [2018-11-12 19:24:08,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:24:08,753 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2018-11-12 19:24:08,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:24:08,768 INFO L225 Difference]: With dead ends: 2196 [2018-11-12 19:24:08,769 INFO L226 Difference]: Without dead ends: 1458 [2018-11-12 19:24:08,773 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:24:08,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-11-12 19:24:08,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-11-12 19:24:08,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-11-12 19:24:08,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2551 transitions. [2018-11-12 19:24:08,853 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2551 transitions. Word has length 126 [2018-11-12 19:24:08,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:24:08,854 INFO L480 AbstractCegarLoop]: Abstraction has 1438 states and 2551 transitions. [2018-11-12 19:24:08,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 19:24:08,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2551 transitions. [2018-11-12 19:24:08,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-12 19:24:08,866 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:24:08,866 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:24:08,866 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:24:08,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:08,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1843387759, now seen corresponding path program 1 times [2018-11-12 19:24:08,867 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:24:08,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:08,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:24:08,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:08,868 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:24:08,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:24:09,117 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:24:09,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:24:09,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:24:09,118 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:24:09,119 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:24:09,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:24:09,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:24:09,119 INFO L87 Difference]: Start difference. First operand 1438 states and 2551 transitions. Second operand 6 states. [2018-11-12 19:24:13,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:24:13,950 INFO L93 Difference]: Finished difference Result 4237 states and 7540 transitions. [2018-11-12 19:24:13,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:24:13,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 129 [2018-11-12 19:24:13,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:24:13,968 INFO L225 Difference]: With dead ends: 4237 [2018-11-12 19:24:13,969 INFO L226 Difference]: Without dead ends: 2805 [2018-11-12 19:24:13,978 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:24:13,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2018-11-12 19:24:14,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2785. [2018-11-12 19:24:14,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2785 states. [2018-11-12 19:24:14,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4352 transitions. [2018-11-12 19:24:14,061 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4352 transitions. Word has length 129 [2018-11-12 19:24:14,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:24:14,061 INFO L480 AbstractCegarLoop]: Abstraction has 2785 states and 4352 transitions. [2018-11-12 19:24:14,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:24:14,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4352 transitions. [2018-11-12 19:24:14,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-11-12 19:24:14,067 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:24:14,067 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-12 19:24:14,068 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:24:14,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:14,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1559994924, now seen corresponding path program 1 times [2018-11-12 19:24:14,068 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:24:14,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:14,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:24:14,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:14,070 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:24:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:24:14,313 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 98 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:24:14,313 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:24:14,313 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:24:14,315 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 223 with the following transitions: [2018-11-12 19:24:14,317 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [527], [529], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:24:14,363 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:24:14,363 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:24:15,067 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:24:15,069 INFO L272 AbstractInterpreter]: Visited 98 different actions 98 times. Never merged. Never widened. Performed 1494 root evaluator evaluations with a maximum evaluation depth of 4. Performed 1494 inverse root evaluator evaluations with a maximum inverse evaluation depth of 4. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:24:15,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:15,125 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:24:15,895 INFO L227 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 78.26% of their original sizes. [2018-11-12 19:24:15,895 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:24:16,539 INFO L415 sIntCurrentIteration]: We unified 221 AI predicates to 221 [2018-11-12 19:24:16,539 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:24:16,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:24:16,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-12 19:24:16,541 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:24:16,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:24:16,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:24:16,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:24:16,542 INFO L87 Difference]: Start difference. First operand 2785 states and 4352 transitions. Second operand 10 states. [2018-11-12 19:24:21,334 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:24:41,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:24:41,909 INFO L93 Difference]: Finished difference Result 5907 states and 9243 transitions. [2018-11-12 19:24:41,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 19:24:41,909 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 222 [2018-11-12 19:24:41,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:24:41,924 INFO L225 Difference]: With dead ends: 5907 [2018-11-12 19:24:41,924 INFO L226 Difference]: Without dead ends: 3128 [2018-11-12 19:24:41,934 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-12 19:24:41,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2018-11-12 19:24:42,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 3123. [2018-11-12 19:24:42,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3123 states. [2018-11-12 19:24:42,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3123 states to 3123 states and 4698 transitions. [2018-11-12 19:24:42,018 INFO L78 Accepts]: Start accepts. Automaton has 3123 states and 4698 transitions. Word has length 222 [2018-11-12 19:24:42,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:24:42,019 INFO L480 AbstractCegarLoop]: Abstraction has 3123 states and 4698 transitions. [2018-11-12 19:24:42,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:24:42,019 INFO L276 IsEmpty]: Start isEmpty. Operand 3123 states and 4698 transitions. [2018-11-12 19:24:42,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-11-12 19:24:42,024 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:24:42,025 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:24:42,025 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:24:42,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:42,026 INFO L82 PathProgramCache]: Analyzing trace with hash 1909742357, now seen corresponding path program 1 times [2018-11-12 19:24:42,026 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:24:42,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:42,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:24:42,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:42,027 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:24:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:24:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 99 proven. 22 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-11-12 19:24:42,323 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:24:42,324 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:24:42,324 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-11-12 19:24:42,324 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [527], [529], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [860], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:24:42,330 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:24:42,331 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:24:42,427 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:24:43,006 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:24:43,007 INFO L272 AbstractInterpreter]: Visited 126 different actions 364 times. Merged at 5 different actions 9 times. Never widened. Performed 6176 root evaluator evaluations with a maximum evaluation depth of 6. Performed 6176 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 19:24:43,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:43,045 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:24:43,045 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:24:43,045 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 19:24:43,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:24:43,066 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:24:43,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:24:43,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:24:43,715 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:24:43,715 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:24:43,978 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-12 19:24:44,868 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:24:44,899 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 19:24:44,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-12 19:24:44,900 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 19:24:44,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-12 19:24:44,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-12 19:24:44,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:24:44,902 INFO L87 Difference]: Start difference. First operand 3123 states and 4698 transitions. Second operand 9 states. [2018-11-12 19:24:54,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:24:54,871 INFO L93 Difference]: Finished difference Result 12271 states and 19563 transitions. [2018-11-12 19:24:54,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-12 19:24:54,874 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 265 [2018-11-12 19:24:54,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:24:54,928 INFO L225 Difference]: With dead ends: 12271 [2018-11-12 19:24:54,928 INFO L226 Difference]: Without dead ends: 9492 [2018-11-12 19:24:54,956 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 535 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=255, Invalid=801, Unknown=0, NotChecked=0, Total=1056 [2018-11-12 19:24:54,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9492 states. [2018-11-12 19:24:55,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9492 to 8974. [2018-11-12 19:24:55,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8974 states. [2018-11-12 19:24:55,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8974 states to 8974 states and 11515 transitions. [2018-11-12 19:24:55,209 INFO L78 Accepts]: Start accepts. Automaton has 8974 states and 11515 transitions. Word has length 265 [2018-11-12 19:24:55,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:24:55,210 INFO L480 AbstractCegarLoop]: Abstraction has 8974 states and 11515 transitions. [2018-11-12 19:24:55,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-12 19:24:55,211 INFO L276 IsEmpty]: Start isEmpty. Operand 8974 states and 11515 transitions. [2018-11-12 19:24:55,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2018-11-12 19:24:55,252 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:24:55,252 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 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 19:24:55,253 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:24:55,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:55,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1333575078, now seen corresponding path program 1 times [2018-11-12 19:24:55,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:24:55,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:55,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:24:55,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:24:55,255 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:24:55,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:24:55,669 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-12 19:24:56,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 327 proven. 388 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2018-11-12 19:24:56,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:24:56,495 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:24:56,496 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 613 with the following transitions: [2018-11-12 19:24:56,496 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [527], [529], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [860], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:24:56,500 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:24:56,500 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:24:56,616 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:24:57,089 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:24:57,089 INFO L272 AbstractInterpreter]: Visited 142 different actions 416 times. Merged at 5 different actions 13 times. Never widened. Performed 7174 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7174 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 19:24:57,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:24:57,128 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:24:57,128 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:24:57,128 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 19:24:57,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:24:57,149 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:24:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:24:57,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:24:58,394 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 764 proven. 2 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2018-11-12 19:24:58,395 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:24:58,633 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-12 19:24:59,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 350 proven. 296 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2018-11-12 19:24:59,156 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 19:24:59,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2018-11-12 19:24:59,157 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 19:24:59,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:24:59,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:24:59,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-12 19:24:59,160 INFO L87 Difference]: Start difference. First operand 8974 states and 11515 transitions. Second operand 10 states. [2018-11-12 19:25:06,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:25:06,173 INFO L93 Difference]: Finished difference Result 23091 states and 29842 transitions. [2018-11-12 19:25:06,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-12 19:25:06,173 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 612 [2018-11-12 19:25:06,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:25:06,220 INFO L225 Difference]: With dead ends: 23091 [2018-11-12 19:25:06,220 INFO L226 Difference]: Without dead ends: 11609 [2018-11-12 19:25:06,301 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1257 GetRequests, 1232 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2018-11-12 19:25:06,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11609 states. [2018-11-12 19:25:06,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11609 to 11524. [2018-11-12 19:25:06,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11524 states. [2018-11-12 19:25:06,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11524 states to 11524 states and 12592 transitions. [2018-11-12 19:25:06,551 INFO L78 Accepts]: Start accepts. Automaton has 11524 states and 12592 transitions. Word has length 612 [2018-11-12 19:25:06,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:25:06,552 INFO L480 AbstractCegarLoop]: Abstraction has 11524 states and 12592 transitions. [2018-11-12 19:25:06,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:25:06,552 INFO L276 IsEmpty]: Start isEmpty. Operand 11524 states and 12592 transitions. [2018-11-12 19:25:06,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 943 [2018-11-12 19:25:06,626 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:25:06,627 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:06,627 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:25:06,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:06,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1100934256, now seen corresponding path program 1 times [2018-11-12 19:25:06,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:25:06,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:06,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:25:06,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:06,629 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:25:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:25:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1927 backedges. 557 proven. 293 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2018-11-12 19:25:08,301 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:25:08,301 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:25:08,301 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 943 with the following transitions: [2018-11-12 19:25:08,302 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [527], [529], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1256], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:25:08,318 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:25:08,319 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:25:08,997 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:25:08,997 INFO L272 AbstractInterpreter]: Visited 252 different actions 500 times. Merged at 5 different actions 7 times. Never widened. Performed 8746 root evaluator evaluations with a maximum evaluation depth of 6. Performed 8746 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 19:25:09,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:09,002 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:25:10,810 INFO L227 lantSequenceWeakener]: Weakened 442 states. On average, predicates are now at 77.82% of their original sizes. [2018-11-12 19:25:10,811 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:25:14,152 INFO L415 sIntCurrentIteration]: We unified 941 AI predicates to 941 [2018-11-12 19:25:14,152 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:25:14,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:25:14,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2018-11-12 19:25:14,153 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:25:14,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-12 19:25:14,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-12 19:25:14,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=332, Unknown=0, NotChecked=0, Total=420 [2018-11-12 19:25:14,155 INFO L87 Difference]: Start difference. First operand 11524 states and 12592 transitions. Second operand 21 states. [2018-11-12 19:25:26,769 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:25:39,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:25:39,193 INFO L93 Difference]: Finished difference Result 23344 states and 25524 transitions. [2018-11-12 19:25:39,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 19:25:39,194 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 942 [2018-11-12 19:25:39,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:25:39,226 INFO L225 Difference]: With dead ends: 23344 [2018-11-12 19:25:39,226 INFO L226 Difference]: Without dead ends: 12164 [2018-11-12 19:25:39,245 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 955 GetRequests, 806 SyntacticMatches, 116 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1484 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=225, Invalid=965, Unknown=0, NotChecked=0, Total=1190 [2018-11-12 19:25:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12164 states. [2018-11-12 19:25:39,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12164 to 12155. [2018-11-12 19:25:39,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12155 states. [2018-11-12 19:25:39,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12155 states to 12155 states and 13238 transitions. [2018-11-12 19:25:39,455 INFO L78 Accepts]: Start accepts. Automaton has 12155 states and 13238 transitions. Word has length 942 [2018-11-12 19:25:39,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:25:39,456 INFO L480 AbstractCegarLoop]: Abstraction has 12155 states and 13238 transitions. [2018-11-12 19:25:39,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-12 19:25:39,456 INFO L276 IsEmpty]: Start isEmpty. Operand 12155 states and 13238 transitions. [2018-11-12 19:25:39,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2018-11-12 19:25:39,532 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:25:39,533 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:25:39,534 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:25:39,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:39,534 INFO L82 PathProgramCache]: Analyzing trace with hash 2131381335, now seen corresponding path program 1 times [2018-11-12 19:25:39,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:25:39,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:39,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:25:39,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:39,536 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:25:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:25:41,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2554 backedges. 617 proven. 872 refuted. 0 times theorem prover too weak. 1065 trivial. 0 not checked. [2018-11-12 19:25:41,748 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:25:41,748 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:25:41,748 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1052 with the following transitions: [2018-11-12 19:25:41,749 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [527], [529], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1256], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:25:41,755 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:25:41,755 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:25:41,803 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:25:44,641 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:25:44,641 INFO L272 AbstractInterpreter]: Visited 261 different actions 3090 times. Merged at 7 different actions 79 times. Widened at 1 different actions 7 times. Performed 39525 root evaluator evaluations with a maximum evaluation depth of 6. Performed 39525 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 12 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:25:44,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:44,650 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:25:45,913 INFO L227 lantSequenceWeakener]: Weakened 1048 states. On average, predicates are now at 77.48% of their original sizes. [2018-11-12 19:25:45,913 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:25:46,022 INFO L415 sIntCurrentIteration]: We unified 1050 AI predicates to 1050 [2018-11-12 19:25:46,023 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:25:46,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:25:46,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 20 [2018-11-12 19:25:46,023 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:25:46,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:25:46,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:25:46,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:25:46,025 INFO L87 Difference]: Start difference. First operand 12155 states and 13238 transitions. Second operand 10 states. [2018-11-12 19:25:59,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:25:59,154 INFO L93 Difference]: Finished difference Result 22331 states and 24446 transitions. [2018-11-12 19:25:59,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-12 19:25:59,154 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1051 [2018-11-12 19:25:59,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:25:59,192 INFO L225 Difference]: With dead ends: 22331 [2018-11-12 19:25:59,193 INFO L226 Difference]: Without dead ends: 12516 [2018-11-12 19:25:59,212 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1058 GetRequests, 1042 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:25:59,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12516 states. [2018-11-12 19:25:59,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12516 to 12501. [2018-11-12 19:25:59,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12501 states. [2018-11-12 19:25:59,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12501 states to 12501 states and 13598 transitions. [2018-11-12 19:25:59,427 INFO L78 Accepts]: Start accepts. Automaton has 12501 states and 13598 transitions. Word has length 1051 [2018-11-12 19:25:59,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:25:59,428 INFO L480 AbstractCegarLoop]: Abstraction has 12501 states and 13598 transitions. [2018-11-12 19:25:59,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:25:59,428 INFO L276 IsEmpty]: Start isEmpty. Operand 12501 states and 13598 transitions. [2018-11-12 19:25:59,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1167 [2018-11-12 19:25:59,477 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:25:59,478 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:25:59,478 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:25:59,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:59,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1910528202, now seen corresponding path program 1 times [2018-11-12 19:25:59,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:25:59,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:59,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:25:59,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:59,480 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:25:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:26:01,682 INFO L134 CoverageAnalysis]: Checked inductivity of 2846 backedges. 740 proven. 293 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2018-11-12 19:26:01,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:26:01,683 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:26:01,683 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1167 with the following transitions: [2018-11-12 19:26:01,683 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [527], [529], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1256], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:26:01,689 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:26:01,689 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:26:02,189 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:26:03,056 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:26:03,056 INFO L272 AbstractInterpreter]: Visited 253 different actions 1504 times. Merged at 7 different actions 41 times. Widened at 1 different actions 2 times. Performed 23208 root evaluator evaluations with a maximum evaluation depth of 6. Performed 23208 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 19:26:03,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:26:03,073 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:26:04,469 INFO L227 lantSequenceWeakener]: Weakened 416 states. On average, predicates are now at 77.33% of their original sizes. [2018-11-12 19:26:04,469 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:26:04,942 INFO L415 sIntCurrentIteration]: We unified 1165 AI predicates to 1165 [2018-11-12 19:26:04,943 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:26:04,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:26:04,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-11-12 19:26:04,943 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:26:04,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-12 19:26:04,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-12 19:26:04,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-11-12 19:26:04,946 INFO L87 Difference]: Start difference. First operand 12501 states and 13598 transitions. Second operand 15 states. [2018-11-12 19:26:23,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:26:23,415 INFO L93 Difference]: Finished difference Result 25886 states and 28166 transitions. [2018-11-12 19:26:23,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-12 19:26:23,415 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 1166 [2018-11-12 19:26:23,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:26:23,459 INFO L225 Difference]: With dead ends: 25886 [2018-11-12 19:26:23,459 INFO L226 Difference]: Without dead ends: 14360 [2018-11-12 19:26:23,482 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1173 GetRequests, 1152 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2018-11-12 19:26:23,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14360 states. [2018-11-12 19:26:23,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14360 to 14352. [2018-11-12 19:26:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14352 states. [2018-11-12 19:26:23,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14352 states to 14352 states and 15520 transitions. [2018-11-12 19:26:23,710 INFO L78 Accepts]: Start accepts. Automaton has 14352 states and 15520 transitions. Word has length 1166 [2018-11-12 19:26:23,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:26:23,711 INFO L480 AbstractCegarLoop]: Abstraction has 14352 states and 15520 transitions. [2018-11-12 19:26:23,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-12 19:26:23,711 INFO L276 IsEmpty]: Start isEmpty. Operand 14352 states and 15520 transitions. [2018-11-12 19:26:23,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1169 [2018-11-12 19:26:23,761 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:26:23,762 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2018-11-12 19:26:23,762 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:26:23,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:26:23,763 INFO L82 PathProgramCache]: Analyzing trace with hash 408719078, now seen corresponding path program 1 times [2018-11-12 19:26:23,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:26:23,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:26:23,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:26:23,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:26:23,764 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:26:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:26:25,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2848 backedges. 740 proven. 293 refuted. 0 times theorem prover too weak. 1815 trivial. 0 not checked. [2018-11-12 19:26:25,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:26:25,576 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:26:25,576 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1169 with the following transitions: [2018-11-12 19:26:25,576 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [527], [529], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1256], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1296], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:26:25,580 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:26:25,580 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:26:25,954 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:26:26,405 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:26:26,405 INFO L272 AbstractInterpreter]: Visited 253 different actions 1003 times. Merged at 7 different actions 24 times. Never widened. Performed 13552 root evaluator evaluations with a maximum evaluation depth of 6. Performed 13552 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:26:26,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:26:26,427 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:26:27,637 INFO L227 lantSequenceWeakener]: Weakened 560 states. On average, predicates are now at 77.73% of their original sizes. [2018-11-12 19:26:27,638 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:26:28,074 INFO L415 sIntCurrentIteration]: We unified 1167 AI predicates to 1167 [2018-11-12 19:26:28,074 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:26:28,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:26:28,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2018-11-12 19:26:28,075 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:26:28,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-12 19:26:28,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-12 19:26:28,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-11-12 19:26:28,077 INFO L87 Difference]: Start difference. First operand 14352 states and 15520 transitions. Second operand 21 states. [2018-11-12 19:26:55,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:26:55,187 INFO L93 Difference]: Finished difference Result 27174 states and 29507 transitions. [2018-11-12 19:26:55,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-11-12 19:26:55,188 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 1168 [2018-11-12 19:26:55,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:26:55,223 INFO L225 Difference]: With dead ends: 27174 [2018-11-12 19:26:55,223 INFO L226 Difference]: Without dead ends: 15648 [2018-11-12 19:26:55,247 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 1188 GetRequests, 1148 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 386 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=316, Invalid=1406, Unknown=0, NotChecked=0, Total=1722 [2018-11-12 19:26:55,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15648 states. [2018-11-12 19:26:55,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15648 to 15632. [2018-11-12 19:26:55,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15632 states. [2018-11-12 19:26:55,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15632 states to 15632 states and 16835 transitions. [2018-11-12 19:26:55,494 INFO L78 Accepts]: Start accepts. Automaton has 15632 states and 16835 transitions. Word has length 1168 [2018-11-12 19:26:55,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:26:55,496 INFO L480 AbstractCegarLoop]: Abstraction has 15632 states and 16835 transitions. [2018-11-12 19:26:55,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-12 19:26:55,496 INFO L276 IsEmpty]: Start isEmpty. Operand 15632 states and 16835 transitions. [2018-11-12 19:26:55,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1201 [2018-11-12 19:26:55,532 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:26:55,533 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:26:55,534 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:26:55,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:26:55,534 INFO L82 PathProgramCache]: Analyzing trace with hash -400707290, now seen corresponding path program 1 times [2018-11-12 19:26:55,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:26:55,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:26:55,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:26:55,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:26:55,536 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:26:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:26:57,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2948 backedges. 740 proven. 293 refuted. 0 times theorem prover too weak. 1915 trivial. 0 not checked. [2018-11-12 19:26:57,254 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:26:57,254 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:26:57,254 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1201 with the following transitions: [2018-11-12 19:26:57,255 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [527], [529], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [684], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1048], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1256], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1288], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:26:57,258 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:26:57,259 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:26:57,902 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:26:59,763 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:26:59,763 INFO L272 AbstractInterpreter]: Visited 254 different actions 2044 times. Merged at 12 different actions 94 times. Widened at 1 different actions 4 times. Performed 29353 root evaluator evaluations with a maximum evaluation depth of 6. Performed 29353 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 27 fixpoints after 4 different actions. Largest state had 24 variables. [2018-11-12 19:26:59,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:26:59,771 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:26:59,771 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:26:59,771 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 19:26:59,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:26:59,780 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:27:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:27:00,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:27:00,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2948 backedges. 1993 proven. 2 refuted. 0 times theorem prover too weak. 953 trivial. 0 not checked. [2018-11-12 19:27:00,745 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:27:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2948 backedges. 740 proven. 293 refuted. 0 times theorem prover too weak. 1915 trivial. 0 not checked. [2018-11-12 19:27:01,685 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 19:27:01,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-12 19:27:01,686 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 19:27:01,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-12 19:27:01,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-12 19:27:01,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:27:01,688 INFO L87 Difference]: Start difference. First operand 15632 states and 16835 transitions. Second operand 9 states. [2018-11-12 19:27:06,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:27:06,200 INFO L93 Difference]: Finished difference Result 36405 states and 40604 transitions. [2018-11-12 19:27:06,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-12 19:27:06,200 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1200 [2018-11-12 19:27:06,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:27:06,259 INFO L225 Difference]: With dead ends: 36405 [2018-11-12 19:27:06,259 INFO L226 Difference]: Without dead ends: 19372 [2018-11-12 19:27:06,340 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2423 GetRequests, 2404 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2018-11-12 19:27:06,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19372 states. [2018-11-12 19:27:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19372 to 19245. [2018-11-12 19:27:06,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19245 states. [2018-11-12 19:27:06,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19245 states to 19245 states and 20769 transitions. [2018-11-12 19:27:06,704 INFO L78 Accepts]: Start accepts. Automaton has 19245 states and 20769 transitions. Word has length 1200 [2018-11-12 19:27:06,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:27:06,705 INFO L480 AbstractCegarLoop]: Abstraction has 19245 states and 20769 transitions. [2018-11-12 19:27:06,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-12 19:27:06,705 INFO L276 IsEmpty]: Start isEmpty. Operand 19245 states and 20769 transitions. [2018-11-12 19:27:06,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1222 [2018-11-12 19:27:06,757 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:27:06,758 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:27:06,758 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:27:06,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:27:06,759 INFO L82 PathProgramCache]: Analyzing trace with hash 696718743, now seen corresponding path program 1 times [2018-11-12 19:27:06,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:27:06,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:27:06,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:27:06,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:27:06,760 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:27:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:27:08,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2932 backedges. 839 proven. 223 refuted. 0 times theorem prover too weak. 1870 trivial. 0 not checked. [2018-11-12 19:27:08,049 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:27:08,049 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:27:08,049 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 1222 with the following transitions: [2018-11-12 19:27:08,049 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [9], [179], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [527], [529], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1044], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1489], [1493], [1497], [1501], [1505], [1509], [1513], [1517], [1521], [1525], [1529], [1533], [1537], [1541], [1545], [1549], [1551], [1552], [1556], [1560], [1566], [1570], [1572], [1577], [1578], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:27:08,054 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:27:08,054 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:27:08,130 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:27:11,554 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:27:11,555 INFO L272 AbstractInterpreter]: Visited 310 different actions 3745 times. Merged at 12 different actions 170 times. Widened at 1 different actions 7 times. Performed 53804 root evaluator evaluations with a maximum evaluation depth of 6. Performed 53804 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 49 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-12 19:27:11,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:27:11,563 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:27:11,563 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:27:11,563 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:27:11,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:27:11,572 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:27:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:27:11,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:27:13,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2932 backedges. 2002 proven. 2 refuted. 0 times theorem prover too weak. 928 trivial. 0 not checked. [2018-11-12 19:27:13,013 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:27:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2932 backedges. 839 proven. 223 refuted. 0 times theorem prover too weak. 1870 trivial. 0 not checked. [2018-11-12 19:27:13,955 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 19:27:13,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-12 19:27:13,956 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 19:27:13,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-12 19:27:13,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-12 19:27:13,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:27:13,958 INFO L87 Difference]: Start difference. First operand 19245 states and 20769 transitions. Second operand 9 states. Received shutdown request... [2018-11-12 19:27:17,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-12 19:27:17,304 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:27:17,310 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:27:17,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:27:17 BoogieIcfgContainer [2018-11-12 19:27:17,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:27:17,311 INFO L168 Benchmark]: Toolchain (without parser) took 207773.15 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-12 19:27:17,312 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:27:17,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1142.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-12 19:27:17,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 176.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -865.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-11-12 19:27:17,314 INFO L168 Benchmark]: Boogie Preprocessor took 176.63 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:27:17,315 INFO L168 Benchmark]: RCFGBuilder took 6236.60 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: 272.3 MB). Peak memory consumption was 272.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:27:17,315 INFO L168 Benchmark]: TraceAbstraction took 200035.50 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -858.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-11-12 19:27:17,320 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1142.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 176.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -865.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 176.63 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6236.60 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: 272.3 MB). Peak memory consumption was 272.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 200035.50 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 1.9 GB in the beginning and 2.8 GB in the end (delta: -858.4 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 154]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 154). Cancelled while BasicCegarLoop was constructing difference of abstraction (19245states) and FLOYD_HOARE automaton (currently 13 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (16100 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 199.9s OverallTime, 12 OverallIterations, 8 TraceHistogramMax, 149.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1947 SDtfs, 29805 SDslu, 2406 SDs, 0 SdLazy, 37164 SolverSat, 6408 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.6s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 11334 GetRequests, 10983 SyntacticMatches, 125 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2472 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19245occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.0s AbstIntTime, 9 AbstIntIterations, 5 AbstIntStrong, 0.9980926298071688 AbsIntWeakeningRatio, 0.05369718309859155 AbsIntAvgWeakeningVarsNumRemoved, 17.10299295774648 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 1176 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 11456 NumberOfCodeBlocks, 11456 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 14734 ConstructedInterpolants, 0 QuantifiedInterpolants, 27571815 SizeOfPredicates, 2 NumberOfNonLiveVariables, 4579 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 20 InterpolantComputations, 3 PerfectInterpolantSequences, 28882/32449 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown