java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label36_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:14:23,359 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:14:23,363 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:14:23,380 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:14:23,380 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:14:23,381 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:14:23,382 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:14:23,384 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:14:23,386 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:14:23,387 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:14:23,388 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:14:23,388 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:14:23,389 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:14:23,390 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:14:23,393 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:14:23,394 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:14:23,395 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:14:23,402 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:14:23,404 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:14:23,410 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:14:23,411 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:14:23,412 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:14:23,419 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-12 19:14:23,428 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:14:23,428 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:14:23,431 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:14:23,432 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:14:23,432 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 19:14:23,464 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:14:23,464 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:14:23,465 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:14:23,465 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:14:23,465 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:14:23,465 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:14:23,466 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:14:23,466 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:14:23,466 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:14:23,466 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:14:23,467 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:14:23,467 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:14:23,467 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:14:23,468 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:14:23,468 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:14:23,468 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:14:23,468 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:14:23,468 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:14:23,470 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:14:23,470 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:14:23,471 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:14:23,471 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:14:23,471 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:14:23,471 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:14:23,472 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:14:23,472 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:14:23,472 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:14:23,472 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:14:23,472 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:14:23,473 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:14:23,473 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:14:23,473 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:14:23,473 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:14:23,473 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:14:23,474 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:14:23,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:14:23,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:14:23,551 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:14:23,553 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:14:23,554 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:14:23,554 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label36_true-unreach-call.c [2018-11-12 19:14:23,626 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2d2e487/28d526134f034ceeb04e59b17dde7f13/FLAG2853dd60c [2018-11-12 19:14:24,345 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:14:24,347 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label36_true-unreach-call.c [2018-11-12 19:14:24,370 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2d2e487/28d526134f034ceeb04e59b17dde7f13/FLAG2853dd60c [2018-11-12 19:14:24,387 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af2d2e487/28d526134f034ceeb04e59b17dde7f13 [2018-11-12 19:14:24,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:14:24,400 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:14:24,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:14:24,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:14:24,405 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:14:24,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:14:24" (1/1) ... [2018-11-12 19:14:24,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f53b6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:24, skipping insertion in model container [2018-11-12 19:14:24,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:14:24" (1/1) ... [2018-11-12 19:14:24,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:14:24,537 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:14:25,489 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:14:25,494 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:14:25,742 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:14:25,766 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:14:25,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25 WrapperNode [2018-11-12 19:14:25,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:14:25,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:14:25,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:14:25,769 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:14:25,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (1/1) ... [2018-11-12 19:14:25,961 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (1/1) ... [2018-11-12 19:14:25,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:14:25,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:14:25,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:14:25,971 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:14:25,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (1/1) ... [2018-11-12 19:14:25,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (1/1) ... [2018-11-12 19:14:25,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (1/1) ... [2018-11-12 19:14:25,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (1/1) ... [2018-11-12 19:14:26,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (1/1) ... [2018-11-12 19:14:26,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (1/1) ... [2018-11-12 19:14:26,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (1/1) ... [2018-11-12 19:14:26,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:14:26,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:14:26,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:14:26,145 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:14:26,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (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 19:14:26,218 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:14:26,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:14:26,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:14:26,218 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:14:26,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:14:26,219 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:14:26,219 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:14:26,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:14:26,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:14:26,219 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:14:26,220 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:14:32,690 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:14:32,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:14:32 BoogieIcfgContainer [2018-11-12 19:14:32,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:14:32,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:14:32,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:14:32,698 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:14:32,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:14:24" (1/3) ... [2018-11-12 19:14:32,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d27979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:14:32, skipping insertion in model container [2018-11-12 19:14:32,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:14:25" (2/3) ... [2018-11-12 19:14:32,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d27979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:14:32, skipping insertion in model container [2018-11-12 19:14:32,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:14:32" (3/3) ... [2018-11-12 19:14:32,701 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label36_true-unreach-call.c [2018-11-12 19:14:32,710 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:14:32,719 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:14:32,738 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:14:32,780 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:14:32,780 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:14:32,781 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:14:32,781 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:14:32,781 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:14:32,781 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:14:32,781 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:14:32,781 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:14:32,815 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-12 19:14:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-11-12 19:14:32,835 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:14:32,836 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:14:32,840 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:14:32,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:32,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1645176452, now seen corresponding path program 1 times [2018-11-12 19:14:32,848 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:14:32,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:32,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:14:32,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:32,904 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:14:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:14:33,458 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-11-12 19:14:33,492 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 19:14:33,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:14:33,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:14:33,496 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:14:33,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:14:33,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:14:33,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:14:33,528 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-12 19:14:39,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:14:39,779 INFO L93 Difference]: Finished difference Result 1510 states and 2773 transitions. [2018-11-12 19:14:39,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:14:39,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2018-11-12 19:14:39,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:14:39,809 INFO L225 Difference]: With dead ends: 1510 [2018-11-12 19:14:39,809 INFO L226 Difference]: Without dead ends: 1066 [2018-11-12 19:14:39,818 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 19:14:39,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2018-11-12 19:14:39,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1064. [2018-11-12 19:14:39,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2018-11-12 19:14:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1590 transitions. [2018-11-12 19:14:39,944 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1590 transitions. Word has length 68 [2018-11-12 19:14:39,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:14:39,945 INFO L480 AbstractCegarLoop]: Abstraction has 1064 states and 1590 transitions. [2018-11-12 19:14:39,945 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:14:39,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1590 transitions. [2018-11-12 19:14:39,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-12 19:14:39,954 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:14:39,955 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:14:39,955 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:14:39,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:39,956 INFO L82 PathProgramCache]: Analyzing trace with hash 880545895, now seen corresponding path program 1 times [2018-11-12 19:14:39,956 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:14:39,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:39,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:14:39,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:39,957 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:14:40,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:14:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:14:40,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:14:40,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:14:40,194 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:14:40,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:14:40,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:14:40,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:14:40,197 INFO L87 Difference]: Start difference. First operand 1064 states and 1590 transitions. Second operand 4 states. [2018-11-12 19:14:45,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:14:45,675 INFO L93 Difference]: Finished difference Result 3981 states and 6113 transitions. [2018-11-12 19:14:45,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:14:45,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2018-11-12 19:14:45,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:14:45,699 INFO L225 Difference]: With dead ends: 3981 [2018-11-12 19:14:45,700 INFO L226 Difference]: Without dead ends: 2923 [2018-11-12 19:14:45,709 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:14:45,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2018-11-12 19:14:45,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2921. [2018-11-12 19:14:45,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2018-11-12 19:14:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4008 transitions. [2018-11-12 19:14:45,838 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4008 transitions. Word has length 138 [2018-11-12 19:14:45,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:14:45,839 INFO L480 AbstractCegarLoop]: Abstraction has 2921 states and 4008 transitions. [2018-11-12 19:14:45,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:14:45,839 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4008 transitions. [2018-11-12 19:14:45,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-11-12 19:14:45,850 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:14:45,850 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:14:45,851 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:14:45,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:45,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1873397843, now seen corresponding path program 1 times [2018-11-12 19:14:45,851 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:14:45,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:45,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:14:45,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:14:45,853 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:14:45,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:14:46,789 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 123 proven. 77 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-12 19:14:46,789 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:14:46,789 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:14:46,790 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 249 with the following transitions: [2018-11-12 19:14:46,794 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [517], [519], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:14:46,865 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:14:46,865 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:14:47,410 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:14:49,166 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:14:49,169 INFO L272 AbstractInterpreter]: Visited 104 different actions 692 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Performed 9834 root evaluator evaluations with a maximum evaluation depth of 6. Performed 9834 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 19:14:49,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:14:49,214 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:14:50,261 INFO L227 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 78.21% of their original sizes. [2018-11-12 19:14:50,262 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:14:53,697 INFO L415 sIntCurrentIteration]: We unified 247 AI predicates to 247 [2018-11-12 19:14:53,698 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:14:53,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:14:53,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-12 19:14:53,701 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:14:53,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 19:14:53,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 19:14:53,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:14:53,703 INFO L87 Difference]: Start difference. First operand 2921 states and 4008 transitions. Second operand 18 states. [2018-11-12 19:15:44,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:15:44,772 INFO L93 Difference]: Finished difference Result 8543 states and 11170 transitions. [2018-11-12 19:15:44,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-12 19:15:44,772 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 248 [2018-11-12 19:15:44,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:15:44,802 INFO L225 Difference]: With dead ends: 8543 [2018-11-12 19:15:44,802 INFO L226 Difference]: Without dead ends: 5628 [2018-11-12 19:15:44,818 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 258 GetRequests, 177 SyntacticMatches, 54 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2018-11-12 19:15:44,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5628 states. [2018-11-12 19:15:44,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5628 to 5120. [2018-11-12 19:15:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5120 states. [2018-11-12 19:15:44,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 6302 transitions. [2018-11-12 19:15:44,951 INFO L78 Accepts]: Start accepts. Automaton has 5120 states and 6302 transitions. Word has length 248 [2018-11-12 19:15:44,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:15:44,952 INFO L480 AbstractCegarLoop]: Abstraction has 5120 states and 6302 transitions. [2018-11-12 19:15:44,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 19:15:44,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5120 states and 6302 transitions. [2018-11-12 19:15:44,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2018-11-12 19:15:44,973 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:15:44,974 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:15:44,974 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:15:44,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:15:44,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1824846397, now seen corresponding path program 1 times [2018-11-12 19:15:44,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:15:44,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:15:44,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:15:44,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:15:44,976 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:15:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:15:45,927 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 185 proven. 4 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2018-11-12 19:15:45,928 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:15:45,928 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:15:45,928 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 498 with the following transitions: [2018-11-12 19:15:45,929 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [517], [519], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:15:45,939 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:15:45,940 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:15:46,000 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:15:46,688 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:15:46,689 INFO L272 AbstractInterpreter]: Visited 284 different actions 848 times. Merged at 7 different actions 18 times. Never widened. Performed 12522 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12522 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-12 19:15:46,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:15:46,695 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:15:47,395 INFO L227 lantSequenceWeakener]: Weakened 494 states. On average, predicates are now at 80.5% of their original sizes. [2018-11-12 19:15:47,395 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:15:47,531 INFO L415 sIntCurrentIteration]: We unified 496 AI predicates to 496 [2018-11-12 19:15:47,532 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:15:47,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:15:47,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-11-12 19:15:47,532 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:15:47,533 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:15:47,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:15:47,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:15:47,534 INFO L87 Difference]: Start difference. First operand 5120 states and 6302 transitions. Second operand 10 states. [2018-11-12 19:16:20,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:16:20,641 INFO L93 Difference]: Finished difference Result 10229 states and 12852 transitions. [2018-11-12 19:16:20,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 19:16:20,641 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 497 [2018-11-12 19:16:20,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:16:20,676 INFO L225 Difference]: With dead ends: 10229 [2018-11-12 19:16:20,676 INFO L226 Difference]: Without dead ends: 7314 [2018-11-12 19:16:20,691 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 503 GetRequests, 488 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-12 19:16:20,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7314 states. [2018-11-12 19:16:20,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7314 to 7304. [2018-11-12 19:16:20,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7304 states. [2018-11-12 19:16:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7304 states to 7304 states and 8637 transitions. [2018-11-12 19:16:20,879 INFO L78 Accepts]: Start accepts. Automaton has 7304 states and 8637 transitions. Word has length 497 [2018-11-12 19:16:20,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:16:20,880 INFO L480 AbstractCegarLoop]: Abstraction has 7304 states and 8637 transitions. [2018-11-12 19:16:20,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:16:20,880 INFO L276 IsEmpty]: Start isEmpty. Operand 7304 states and 8637 transitions. [2018-11-12 19:16:20,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2018-11-12 19:16:20,902 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:16:20,903 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:16:20,903 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:16:20,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:16:20,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1447195982, now seen corresponding path program 1 times [2018-11-12 19:16:20,904 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:16:20,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:16:20,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:16:20,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:16:20,905 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:16:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:16:21,873 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-12 19:16:21,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:16:21,874 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:16:21,874 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 539 with the following transitions: [2018-11-12 19:16:21,875 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [517], [519], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [625], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:16:21,884 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:16:21,885 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:16:22,653 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:16:24,154 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:16:24,155 INFO L272 AbstractInterpreter]: Visited 285 different actions 1702 times. Merged at 8 different actions 50 times. Widened at 1 different actions 2 times. Performed 28008 root evaluator evaluations with a maximum evaluation depth of 6. Performed 28008 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 10 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-12 19:16:24,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:16:24,162 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:16:24,162 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:16:24,162 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 19:16:24,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:16:24,180 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:16:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:16:24,376 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:16:25,027 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-12 19:16:25,027 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:16:25,193 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-12 19:16:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 350 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-12 19:16:25,989 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 19:16:25,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-12 19:16:25,990 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 19:16:25,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-12 19:16:25,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-12 19:16:25,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:16:25,992 INFO L87 Difference]: Start difference. First operand 7304 states and 8637 transitions. Second operand 9 states. [2018-11-12 19:16:34,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:16:34,246 INFO L93 Difference]: Finished difference Result 15753 states and 20060 transitions. [2018-11-12 19:16:34,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 19:16:34,246 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 538 [2018-11-12 19:16:34,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:16:34,305 INFO L225 Difference]: With dead ends: 15753 [2018-11-12 19:16:34,305 INFO L226 Difference]: Without dead ends: 11895 [2018-11-12 19:16:34,335 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1105 GetRequests, 1083 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2018-11-12 19:16:34,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11895 states. [2018-11-12 19:16:34,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11895 to 11503. [2018-11-12 19:16:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11503 states. [2018-11-12 19:16:34,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11503 states to 11503 states and 13419 transitions. [2018-11-12 19:16:34,620 INFO L78 Accepts]: Start accepts. Automaton has 11503 states and 13419 transitions. Word has length 538 [2018-11-12 19:16:34,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:16:34,621 INFO L480 AbstractCegarLoop]: Abstraction has 11503 states and 13419 transitions. [2018-11-12 19:16:34,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-12 19:16:34,621 INFO L276 IsEmpty]: Start isEmpty. Operand 11503 states and 13419 transitions. [2018-11-12 19:16:34,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2018-11-12 19:16:34,656 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:16:34,656 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:16:34,657 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:16:34,657 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:16:34,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1482004606, now seen corresponding path program 1 times [2018-11-12 19:16:34,658 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:16:34,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:16:34,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:16:34,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:16:34,659 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:16:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:16:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 185 proven. 4 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-11-12 19:16:35,503 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:16:35,503 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:16:35,503 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 576 with the following transitions: [2018-11-12 19:16:35,504 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [517], [519], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [962], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:16:35,509 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:16:35,509 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:16:35,559 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:16:36,224 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:16:36,225 INFO L272 AbstractInterpreter]: Visited 284 different actions 848 times. Merged at 7 different actions 18 times. Never widened. Performed 12451 root evaluator evaluations with a maximum evaluation depth of 6. Performed 12451 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-12 19:16:36,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:16:36,233 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:16:36,957 INFO L227 lantSequenceWeakener]: Weakened 572 states. On average, predicates are now at 83.7% of their original sizes. [2018-11-12 19:16:36,957 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:16:37,061 INFO L415 sIntCurrentIteration]: We unified 574 AI predicates to 574 [2018-11-12 19:16:37,061 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:16:37,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:16:37,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-11-12 19:16:37,062 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:16:37,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:16:37,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:16:37,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:16:37,063 INFO L87 Difference]: Start difference. First operand 11503 states and 13419 transitions. Second operand 10 states. [2018-11-12 19:17:02,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:17:02,908 INFO L93 Difference]: Finished difference Result 19659 states and 23623 transitions. [2018-11-12 19:17:02,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-12 19:17:02,908 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 575 [2018-11-12 19:17:02,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:17:02,950 INFO L225 Difference]: With dead ends: 19659 [2018-11-12 19:17:02,950 INFO L226 Difference]: Without dead ends: 13357 [2018-11-12 19:17:02,974 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 581 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-12 19:17:02,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13357 states. [2018-11-12 19:17:03,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13357 to 13005. [2018-11-12 19:17:03,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13005 states. [2018-11-12 19:17:03,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13005 states to 13005 states and 15034 transitions. [2018-11-12 19:17:03,202 INFO L78 Accepts]: Start accepts. Automaton has 13005 states and 15034 transitions. Word has length 575 [2018-11-12 19:17:03,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:17:03,203 INFO L480 AbstractCegarLoop]: Abstraction has 13005 states and 15034 transitions. [2018-11-12 19:17:03,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:17:03,203 INFO L276 IsEmpty]: Start isEmpty. Operand 13005 states and 15034 transitions. [2018-11-12 19:17:03,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2018-11-12 19:17:03,235 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:17:03,235 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:17:03,236 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:17:03,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:17:03,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1954697654, now seen corresponding path program 1 times [2018-11-12 19:17:03,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:17:03,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:03,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:17:03,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:03,238 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:17:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:17:04,552 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-11-12 19:17:04,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:17:04,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:17:04,553 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:17:04,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:17:04,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:17:04,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:17:04,555 INFO L87 Difference]: Start difference. First operand 13005 states and 15034 transitions. Second operand 3 states. [2018-11-12 19:17:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:17:06,875 INFO L93 Difference]: Finished difference Result 19612 states and 23563 transitions. [2018-11-12 19:17:06,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:17:06,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 584 [2018-11-12 19:17:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:17:06,914 INFO L225 Difference]: With dead ends: 19612 [2018-11-12 19:17:06,914 INFO L226 Difference]: Without dead ends: 13312 [2018-11-12 19:17:06,932 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:17:06,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13312 states. [2018-11-12 19:17:07,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13312 to 13004. [2018-11-12 19:17:07,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13004 states. [2018-11-12 19:17:07,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13004 states to 13004 states and 15037 transitions. [2018-11-12 19:17:07,136 INFO L78 Accepts]: Start accepts. Automaton has 13004 states and 15037 transitions. Word has length 584 [2018-11-12 19:17:07,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:17:07,137 INFO L480 AbstractCegarLoop]: Abstraction has 13004 states and 15037 transitions. [2018-11-12 19:17:07,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:17:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 13004 states and 15037 transitions. [2018-11-12 19:17:07,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2018-11-12 19:17:07,171 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:17:07,171 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:17:07,172 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:17:07,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:17:07,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1466159039, now seen corresponding path program 1 times [2018-11-12 19:17:07,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:17:07,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:07,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:17:07,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:07,174 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:17:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:17:07,876 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 486 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-12 19:17:07,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:17:07,876 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:17:07,877 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 610 with the following transitions: [2018-11-12 19:17:07,877 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [517], [519], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [629], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:17:07,883 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:17:07,884 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:17:07,931 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:17:10,319 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-12 19:17:10,320 INFO L272 AbstractInterpreter]: Visited 286 different actions 1708 times. Merged at 9 different actions 51 times. Widened at 1 different actions 1 times. Performed 28692 root evaluator evaluations with a maximum evaluation depth of 6. Performed 28692 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 14 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-12 19:17:10,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:17:10,327 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-12 19:17:10,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:17:10,327 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 19:17:10,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:17:10,340 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:17:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:17:10,514 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:17:10,812 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 486 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-12 19:17:10,812 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-12 19:17:11,199 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 486 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-12 19:17:11,221 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-12 19:17:11,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2018-11-12 19:17:11,222 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-12 19:17:11,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:17:11,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:17:11,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-12 19:17:11,224 INFO L87 Difference]: Start difference. First operand 13004 states and 15037 transitions. Second operand 6 states. [2018-11-12 19:17:14,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:17:14,513 INFO L93 Difference]: Finished difference Result 23828 states and 29563 transitions. [2018-11-12 19:17:14,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-12 19:17:14,514 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 609 [2018-11-12 19:17:14,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:17:14,597 INFO L225 Difference]: With dead ends: 23828 [2018-11-12 19:17:14,598 INFO L226 Difference]: Without dead ends: 17529 [2018-11-12 19:17:14,620 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1230 GetRequests, 1219 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:17:14,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17529 states. [2018-11-12 19:17:15,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17529 to 16214. [2018-11-12 19:17:15,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16214 states. [2018-11-12 19:17:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16214 states to 16214 states and 18858 transitions. [2018-11-12 19:17:15,156 INFO L78 Accepts]: Start accepts. Automaton has 16214 states and 18858 transitions. Word has length 609 [2018-11-12 19:17:15,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:17:15,157 INFO L480 AbstractCegarLoop]: Abstraction has 16214 states and 18858 transitions. [2018-11-12 19:17:15,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:17:15,158 INFO L276 IsEmpty]: Start isEmpty. Operand 16214 states and 18858 transitions. [2018-11-12 19:17:15,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2018-11-12 19:17:15,190 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:17:15,191 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:17:15,191 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:17:15,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:17:15,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1096908630, now seen corresponding path program 1 times [2018-11-12 19:17:15,192 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:17:15,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:15,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:17:15,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:15,193 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:17:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:17:15,928 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 253 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2018-11-12 19:17:15,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:17:15,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 19:17:15,929 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:17:15,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 19:17:15,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 19:17:15,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:17:15,931 INFO L87 Difference]: Start difference. First operand 16214 states and 18858 transitions. Second operand 4 states. [2018-11-12 19:17:20,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:17:20,504 INFO L93 Difference]: Finished difference Result 37225 states and 45512 transitions. [2018-11-12 19:17:20,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 19:17:20,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 630 [2018-11-12 19:17:20,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:17:20,560 INFO L225 Difference]: With dead ends: 37225 [2018-11-12 19:17:20,560 INFO L226 Difference]: Without dead ends: 16566 [2018-11-12 19:17:20,626 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 19:17:20,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16566 states. [2018-11-12 19:17:20,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16566 to 16538. [2018-11-12 19:17:20,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16538 states. [2018-11-12 19:17:20,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16538 states to 16538 states and 18716 transitions. [2018-11-12 19:17:20,883 INFO L78 Accepts]: Start accepts. Automaton has 16538 states and 18716 transitions. Word has length 630 [2018-11-12 19:17:20,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:17:20,883 INFO L480 AbstractCegarLoop]: Abstraction has 16538 states and 18716 transitions. [2018-11-12 19:17:20,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 19:17:20,884 INFO L276 IsEmpty]: Start isEmpty. Operand 16538 states and 18716 transitions. [2018-11-12 19:17:20,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2018-11-12 19:17:20,920 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:17:20,921 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:17:20,921 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:17:20,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:17:20,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1404658461, now seen corresponding path program 1 times [2018-11-12 19:17:20,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:17:20,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:20,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:17:20,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:17:20,925 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:17:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:17:21,668 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 569 proven. 2 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2018-11-12 19:17:21,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:17:21,668 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:17:21,669 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 669 with the following transitions: [2018-11-12 19:17:21,669 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [517], [519], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [660], [663], [667], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [790], [793], [797], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-12 19:17:21,674 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:17:21,675 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:17:22,114 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:17:22,875 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:17:22,876 INFO L272 AbstractInterpreter]: Visited 285 different actions 1127 times. Merged at 7 different actions 20 times. Never widened. Performed 21106 root evaluator evaluations with a maximum evaluation depth of 6. Performed 21106 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:17:22,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:17:22,889 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:17:23,518 INFO L227 lantSequenceWeakener]: Weakened 661 states. On average, predicates are now at 80.32% of their original sizes. [2018-11-12 19:17:23,518 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:17:23,656 INFO L415 sIntCurrentIteration]: We unified 667 AI predicates to 667 [2018-11-12 19:17:23,656 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:17:23,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:17:23,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-12 19:17:23,657 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:17:23,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-12 19:17:23,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-12 19:17:23,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-12 19:17:23,658 INFO L87 Difference]: Start difference. First operand 16538 states and 18716 transitions. Second operand 11 states. Received shutdown request... [2018-11-12 19:17:53,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-12 19:17:53,806 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:17:53,811 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:17:53,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:17:53 BoogieIcfgContainer [2018-11-12 19:17:53,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:17:53,812 INFO L168 Benchmark]: Toolchain (without parser) took 209412.96 ms. Allocated memory was 1.5 GB in the beginning and 5.6 GB in the end (delta: 4.1 GB). Free memory was 1.4 GB in the beginning and 4.5 GB in the end (delta: -3.1 GB). Peak memory consumption was 977.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:53,813 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:17:53,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1365.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:53,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 202.41 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -902.8 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:53,815 INFO L168 Benchmark]: Boogie Preprocessor took 173.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:53,816 INFO L168 Benchmark]: RCFGBuilder took 6548.45 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: 297.2 MB). Peak memory consumption was 297.2 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:53,817 INFO L168 Benchmark]: TraceAbstraction took 201117.58 ms. Allocated memory was 2.3 GB in the beginning and 5.6 GB in the end (delta: 3.3 GB). Free memory was 1.9 GB in the beginning and 4.5 GB in the end (delta: -2.6 GB). Peak memory consumption was 708.1 MB. Max. memory is 7.1 GB. [2018-11-12 19:17:53,822 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1365.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 202.41 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -902.8 MB). Peak memory consumption was 31.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 173.49 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6548.45 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: 297.2 MB). Peak memory consumption was 297.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 201117.58 ms. Allocated memory was 2.3 GB in the beginning and 5.6 GB in the end (delta: 3.3 GB). Free memory was 1.9 GB in the beginning and 4.5 GB in the end (delta: -2.6 GB). Peak memory consumption was 708.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was constructing difference of abstraction (16538states) and FLOYD_HOARE automaton (currently 22 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (26672 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 201.0s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 170.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3684 SDtfs, 19723 SDslu, 3552 SDs, 0 SdLazy, 28787 SolverSat, 4706 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.5s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 4375 GetRequests, 4203 SyntacticMatches, 58 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16538occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.8s AbstIntTime, 6 AbstIntIterations, 4 AbstIntStrong, 0.997906719608783 AbsIntWeakeningRatio, 0.0655241935483871 AbsIntAvgWeakeningVarsNumRemoved, 18.71673387096774 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 2917 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 5702 NumberOfCodeBlocks, 5702 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 6835 ConstructedInterpolants, 0 QuantifiedInterpolants, 7121918 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1633 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 6835/6934 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown