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_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:48:34,662 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:48:34,664 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:48:34,678 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:48:34,678 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:48:34,680 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:48:34,684 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:48:34,688 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:48:34,689 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:48:34,692 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:48:34,694 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:48:34,694 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:48:34,695 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:48:34,696 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:48:34,697 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:48:34,698 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:48:34,699 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:48:34,701 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:48:34,703 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:48:34,704 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:48:34,706 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:48:34,707 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:48:34,709 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:48:34,710 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:48:34,710 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:48:34,711 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:48:34,712 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:48:34,712 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:48:34,713 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:48:34,714 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:48:34,714 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:48:34,715 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:48:34,715 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:48:34,716 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:48:34,717 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:48:34,719 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:48:34,719 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:48:34,736 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:48:34,736 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:48:34,737 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:48:34,737 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:48:34,738 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:48:34,738 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:48:34,738 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:48:34,738 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:48:34,738 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:48:34,739 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:48:34,739 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:48:34,739 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:48:34,739 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:48:34,740 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:48:34,740 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:48:34,740 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:48:34,741 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:48:34,741 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:48:34,741 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:48:34,741 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:48:34,741 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:48:34,742 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:48:34,742 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:48:34,742 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:48:34,742 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:48:34,742 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:48:34,743 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:48:34,743 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:48:34,743 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:48:34,743 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:48:34,743 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:48:34,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:48:34,744 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:48:34,744 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:48:34,744 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:48:34,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:48:34,821 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:48:34,825 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:48:34,827 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:48:34,827 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:48:34,828 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label57_true-unreach-call.c [2018-11-07 20:48:34,895 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8152b6998/11f240b87ad94eb785e187d28d25deb7/FLAG0fe244fdd [2018-11-07 20:48:35,602 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:48:35,603 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label57_true-unreach-call.c [2018-11-07 20:48:35,623 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8152b6998/11f240b87ad94eb785e187d28d25deb7/FLAG0fe244fdd [2018-11-07 20:48:35,641 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8152b6998/11f240b87ad94eb785e187d28d25deb7 [2018-11-07 20:48:35,654 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:48:35,655 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:48:35,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:48:35,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:48:35,665 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:48:35,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:48:35" (1/1) ... [2018-11-07 20:48:35,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d43b656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:35, skipping insertion in model container [2018-11-07 20:48:35,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:48:35" (1/1) ... [2018-11-07 20:48:35,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:48:35,785 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:48:36,725 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:48:36,733 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:48:37,075 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:48:37,099 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:48:37,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37 WrapperNode [2018-11-07 20:48:37,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:48:37,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:48:37,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:48:37,102 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:48:37,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (1/1) ... [2018-11-07 20:48:37,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (1/1) ... [2018-11-07 20:48:37,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:48:37,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:48:37,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:48:37,362 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:48:37,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (1/1) ... [2018-11-07 20:48:37,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (1/1) ... [2018-11-07 20:48:37,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (1/1) ... [2018-11-07 20:48:37,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (1/1) ... [2018-11-07 20:48:37,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (1/1) ... [2018-11-07 20:48:37,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (1/1) ... [2018-11-07 20:48:37,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (1/1) ... [2018-11-07 20:48:37,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:48:37,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:48:37,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:48:37,531 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:48:37,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:48:37,602 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:48:37,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:48:37,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:48:37,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:48:37,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:48:37,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:48:37,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:48:37,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:48:37,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:48:37,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:48:37,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:48:44,237 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:48:44,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:48:44 BoogieIcfgContainer [2018-11-07 20:48:44,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:48:44,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:48:44,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:48:44,242 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:48:44,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:48:35" (1/3) ... [2018-11-07 20:48:44,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f446a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:48:44, skipping insertion in model container [2018-11-07 20:48:44,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:48:37" (2/3) ... [2018-11-07 20:48:44,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f446a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:48:44, skipping insertion in model container [2018-11-07 20:48:44,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:48:44" (3/3) ... [2018-11-07 20:48:44,246 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label57_true-unreach-call.c [2018-11-07 20:48:44,257 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:48:44,269 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:48:44,287 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:48:44,331 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:48:44,331 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:48:44,331 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:48:44,331 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:48:44,331 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:48:44,332 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:48:44,332 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:48:44,332 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:48:44,366 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 20:48:44,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-07 20:48:44,375 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:48:44,376 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:48:44,379 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:48:44,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:48:44,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1926433044, now seen corresponding path program 1 times [2018-11-07 20:48:44,388 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:48:44,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:48:44,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:48:44,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:48:44,441 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:48:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:48:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:48:44,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:48:44,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:48:44,954 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:48:44,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:48:44,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:48:44,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:48:44,986 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 20:48:54,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:48:54,178 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-11-07 20:48:54,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:48:54,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2018-11-07 20:48:54,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:48:54,224 INFO L225 Difference]: With dead ends: 1550 [2018-11-07 20:48:54,225 INFO L226 Difference]: Without dead ends: 1106 [2018-11-07 20:48:54,237 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 [2018-11-07 20:48:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-11-07 20:48:54,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-11-07 20:48:54,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-11-07 20:48:54,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-11-07 20:48:54,379 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 48 [2018-11-07 20:48:54,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:48:54,380 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-11-07 20:48:54,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:48:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-11-07 20:48:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-11-07 20:48:54,395 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:48:54,395 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:48:54,396 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:48:54,397 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:48:54,397 INFO L82 PathProgramCache]: Analyzing trace with hash -45753950, now seen corresponding path program 1 times [2018-11-07 20:48:54,397 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:48:54,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:48:54,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:48:54,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:48:54,400 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:48:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:48:54,713 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:48:54,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:48:54,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 20:48:54,714 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:48:54,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 20:48:54,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 20:48:54,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 20:48:54,718 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 5 states. [2018-11-07 20:49:00,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:49:00,087 INFO L93 Difference]: Finished difference Result 2248 states and 3762 transitions. [2018-11-07 20:49:00,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:49:00,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2018-11-07 20:49:00,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:49:00,104 INFO L225 Difference]: With dead ends: 2248 [2018-11-07 20:49:00,104 INFO L226 Difference]: Without dead ends: 1492 [2018-11-07 20:49:00,108 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:49:00,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1492 states. [2018-11-07 20:49:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1492 to 1457. [2018-11-07 20:49:00,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-11-07 20:49:00,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-11-07 20:49:00,192 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 121 [2018-11-07 20:49:00,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:49:00,193 INFO L480 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-11-07 20:49:00,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 20:49:00,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-11-07 20:49:00,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-11-07 20:49:00,197 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:49:00,197 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:49:00,197 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:49:00,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:49:00,198 INFO L82 PathProgramCache]: Analyzing trace with hash 935470738, now seen corresponding path program 1 times [2018-11-07 20:49:00,198 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:49:00,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:49:00,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:49:00,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:49:00,199 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:49:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:49:00,434 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:49:00,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:49:00,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:49:00,435 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:49:00,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:49:00,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:49:00,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:49:00,437 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 4 states. [2018-11-07 20:49:04,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:49:04,514 INFO L93 Difference]: Finished difference Result 5393 states and 8280 transitions. [2018-11-07 20:49:04,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:49:04,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 129 [2018-11-07 20:49:04,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:49:04,540 INFO L225 Difference]: With dead ends: 5393 [2018-11-07 20:49:04,540 INFO L226 Difference]: Without dead ends: 3942 [2018-11-07 20:49:04,554 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 [2018-11-07 20:49:04,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3942 states. [2018-11-07 20:49:04,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3942 to 3942. [2018-11-07 20:49:04,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3942 states. [2018-11-07 20:49:04,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 5428 transitions. [2018-11-07 20:49:04,680 INFO L78 Accepts]: Start accepts. Automaton has 3942 states and 5428 transitions. Word has length 129 [2018-11-07 20:49:04,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:49:04,683 INFO L480 AbstractCegarLoop]: Abstraction has 3942 states and 5428 transitions. [2018-11-07 20:49:04,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:49:04,684 INFO L276 IsEmpty]: Start isEmpty. Operand 3942 states and 5428 transitions. [2018-11-07 20:49:04,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-11-07 20:49:04,697 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:49:04,697 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:49:04,698 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:49:04,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:49:04,698 INFO L82 PathProgramCache]: Analyzing trace with hash 107667736, now seen corresponding path program 1 times [2018-11-07 20:49:04,698 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:49:04,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:49:04,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:49:04,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:49:04,700 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:49:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:49:04,981 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:49:05,394 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 82 proven. 75 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 20:49:05,395 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:49:05,395 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:49:05,396 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 216 with the following transitions: [2018-11-07 20:49:05,404 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [633], [638], [640], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 20:49:05,470 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:49:05,470 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:49:05,939 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:49:05,942 INFO L272 AbstractInterpreter]: Visited 90 different actions 90 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 20:49:05,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:49:05,997 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:49:06,517 INFO L227 lantSequenceWeakener]: Weakened 204 states. On average, predicates are now at 77.93% of their original sizes. [2018-11-07 20:49:06,517 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:49:06,709 INFO L415 sIntCurrentIteration]: We unified 214 AI predicates to 214 [2018-11-07 20:49:06,709 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:49:06,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:49:06,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 20:49:06,710 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:49:06,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 20:49:06,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 20:49:06,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 20:49:06,712 INFO L87 Difference]: Start difference. First operand 3942 states and 5428 transitions. Second operand 7 states. [2018-11-07 20:49:09,677 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:49:34,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:49:34,400 INFO L93 Difference]: Finished difference Result 8188 states and 11232 transitions. [2018-11-07 20:49:34,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:49:34,400 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 215 [2018-11-07 20:49:34,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:49:34,422 INFO L225 Difference]: With dead ends: 8188 [2018-11-07 20:49:34,422 INFO L226 Difference]: Without dead ends: 4252 [2018-11-07 20:49:34,441 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 215 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:49:34,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2018-11-07 20:49:34,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 4250. [2018-11-07 20:49:34,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4250 states. [2018-11-07 20:49:34,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4250 states to 4250 states and 5744 transitions. [2018-11-07 20:49:34,558 INFO L78 Accepts]: Start accepts. Automaton has 4250 states and 5744 transitions. Word has length 215 [2018-11-07 20:49:34,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:49:34,559 INFO L480 AbstractCegarLoop]: Abstraction has 4250 states and 5744 transitions. [2018-11-07 20:49:34,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 20:49:34,559 INFO L276 IsEmpty]: Start isEmpty. Operand 4250 states and 5744 transitions. [2018-11-07 20:49:34,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-11-07 20:49:34,569 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:49:34,569 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 20:49:34,570 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:49:34,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:49:34,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1560998385, now seen corresponding path program 1 times [2018-11-07 20:49:34,570 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:49:34,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:49:34,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:49:34,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:49:34,572 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:49:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:49:34,969 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 129 proven. 221 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-07 20:49:34,969 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:49:34,969 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:49:34,970 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-11-07 20:49:34,970 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [633], [638], [640], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 20:49:34,975 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:49:34,976 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:49:35,123 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:49:36,496 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:49:36,497 INFO L272 AbstractInterpreter]: Visited 105 different actions 699 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:49:36,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:49:36,504 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:49:37,287 INFO L227 lantSequenceWeakener]: Weakened 57 states. On average, predicates are now at 77.75% of their original sizes. [2018-11-07 20:49:37,287 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:49:41,909 INFO L415 sIntCurrentIteration]: We unified 310 AI predicates to 310 [2018-11-07 20:49:41,909 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:49:41,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:49:41,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-11-07 20:49:41,910 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:49:41,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 20:49:41,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 20:49:41,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-11-07 20:49:41,911 INFO L87 Difference]: Start difference. First operand 4250 states and 5744 transitions. Second operand 15 states. [2018-11-07 20:50:13,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:50:13,389 INFO L93 Difference]: Finished difference Result 9654 states and 12910 transitions. [2018-11-07 20:50:13,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-07 20:50:13,390 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 311 [2018-11-07 20:50:13,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:50:13,413 INFO L225 Difference]: With dead ends: 9654 [2018-11-07 20:50:13,413 INFO L226 Difference]: Without dead ends: 5718 [2018-11-07 20:50:13,430 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 317 GetRequests, 133 SyntacticMatches, 164 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2018-11-07 20:50:13,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2018-11-07 20:50:14,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 5434. [2018-11-07 20:50:14,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5434 states. [2018-11-07 20:50:14,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 6980 transitions. [2018-11-07 20:50:14,251 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 6980 transitions. Word has length 311 [2018-11-07 20:50:14,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:50:14,252 INFO L480 AbstractCegarLoop]: Abstraction has 5434 states and 6980 transitions. [2018-11-07 20:50:14,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 20:50:14,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 6980 transitions. [2018-11-07 20:50:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2018-11-07 20:50:14,266 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:50:14,267 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 20:50:14,267 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:50:14,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:50:14,268 INFO L82 PathProgramCache]: Analyzing trace with hash -421238958, now seen corresponding path program 1 times [2018-11-07 20:50:14,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:50:14,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:50:14,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:50:14,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:50:14,270 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:50:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:50:14,658 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:50:14,791 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 129 proven. 221 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-07 20:50:14,792 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:50:14,792 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:50:14,792 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 397 with the following transitions: [2018-11-07 20:50:14,793 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [633], [638], [640], [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], [1115], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 20:50:14,800 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:50:14,800 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:50:14,892 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:50:15,571 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:50:15,571 INFO L272 AbstractInterpreter]: Visited 190 different actions 741 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:50:15,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:50:15,577 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:50:16,271 INFO L227 lantSequenceWeakener]: Weakened 81 states. On average, predicates are now at 78.96% of their original sizes. [2018-11-07 20:50:16,271 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:50:18,879 INFO L415 sIntCurrentIteration]: We unified 395 AI predicates to 395 [2018-11-07 20:50:18,880 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:50:18,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:50:18,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-07 20:50:18,880 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:50:18,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 20:50:18,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 20:50:18,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-11-07 20:50:18,882 INFO L87 Difference]: Start difference. First operand 5434 states and 6980 transitions. Second operand 18 states. [2018-11-07 20:50:56,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:50:56,845 INFO L93 Difference]: Finished difference Result 11166 states and 14598 transitions. [2018-11-07 20:50:56,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-07 20:50:56,846 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 396 [2018-11-07 20:50:56,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:50:56,869 INFO L225 Difference]: With dead ends: 11166 [2018-11-07 20:50:56,870 INFO L226 Difference]: Without dead ends: 7230 [2018-11-07 20:50:56,885 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 408 GetRequests, 307 SyntacticMatches, 72 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=203, Invalid=727, Unknown=0, NotChecked=0, Total=930 [2018-11-07 20:50:56,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7230 states. [2018-11-07 20:50:57,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7230 to 6622. [2018-11-07 20:50:57,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6622 states. [2018-11-07 20:50:57,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6622 states to 6622 states and 8227 transitions. [2018-11-07 20:50:57,022 INFO L78 Accepts]: Start accepts. Automaton has 6622 states and 8227 transitions. Word has length 396 [2018-11-07 20:50:57,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:50:57,022 INFO L480 AbstractCegarLoop]: Abstraction has 6622 states and 8227 transitions. [2018-11-07 20:50:57,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-07 20:50:57,023 INFO L276 IsEmpty]: Start isEmpty. Operand 6622 states and 8227 transitions. [2018-11-07 20:50:57,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2018-11-07 20:50:57,042 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:50:57,042 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:50:57,043 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:50:57,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:50:57,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1200518730, now seen corresponding path program 1 times [2018-11-07 20:50:57,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:50:57,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:50:57,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:50:57,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:50:57,045 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:50:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:50:57,511 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 211 proven. 79 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-07 20:50:57,511 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:50:57,511 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:50:57,512 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 491 with the following transitions: [2018-11-07 20:50:57,514 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [633], [638], [640], [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] [2018-11-07 20:50:57,524 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:50:57,524 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:50:57,675 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:50:58,346 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:50:58,346 INFO L272 AbstractInterpreter]: Visited 284 different actions 562 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:50:58,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:50:58,348 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:50:58,942 INFO L227 lantSequenceWeakener]: Weakened 95 states. On average, predicates are now at 79.78% of their original sizes. [2018-11-07 20:50:58,943 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:50:59,303 INFO L415 sIntCurrentIteration]: We unified 489 AI predicates to 489 [2018-11-07 20:50:59,303 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:50:59,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:50:59,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-07 20:50:59,303 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:50:59,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 20:50:59,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 20:50:59,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-11-07 20:50:59,305 INFO L87 Difference]: Start difference. First operand 6622 states and 8227 transitions. Second operand 20 states. [2018-11-07 20:51:29,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:51:29,532 INFO L93 Difference]: Finished difference Result 11789 states and 15224 transitions. [2018-11-07 20:51:29,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-07 20:51:29,532 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 490 [2018-11-07 20:51:29,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:51:29,560 INFO L225 Difference]: With dead ends: 11789 [2018-11-07 20:51:29,560 INFO L226 Difference]: Without dead ends: 7853 [2018-11-07 20:51:29,577 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 506 GetRequests, 471 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=254, Invalid=1078, Unknown=0, NotChecked=0, Total=1332 [2018-11-07 20:51:29,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7853 states. [2018-11-07 20:51:29,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7846. [2018-11-07 20:51:29,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7846 states. [2018-11-07 20:51:29,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7846 states to 7846 states and 9555 transitions. [2018-11-07 20:51:29,721 INFO L78 Accepts]: Start accepts. Automaton has 7846 states and 9555 transitions. Word has length 490 [2018-11-07 20:51:29,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:51:29,722 INFO L480 AbstractCegarLoop]: Abstraction has 7846 states and 9555 transitions. [2018-11-07 20:51:29,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-07 20:51:29,722 INFO L276 IsEmpty]: Start isEmpty. Operand 7846 states and 9555 transitions. [2018-11-07 20:51:29,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2018-11-07 20:51:29,746 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:51:29,746 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 20:51:29,747 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:51:29,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:29,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1413664628, now seen corresponding path program 1 times [2018-11-07 20:51:29,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:51:29,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:29,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:51:29,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:29,749 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:51:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:51:30,211 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:51:30,628 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 203 proven. 117 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-11-07 20:51:30,629 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:51:30,629 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:51:30,629 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 516 with the following transitions: [2018-11-07 20:51:30,630 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 20:51:30,635 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:51:30,635 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:51:31,498 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:51:32,670 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:51:32,670 INFO L272 AbstractInterpreter]: Visited 285 different actions 1412 times. Merged at 8 different actions 34 times. Never widened. Found 8 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 20:51:32,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:32,709 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:51:32,709 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:51:32,710 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:51:32,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:51:32,732 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:51:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:51:32,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:51:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 284 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 20:51:33,680 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:51:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 284 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 20:51:34,849 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 20:51:34,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-11-07 20:51:34,849 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 20:51:34,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:51:34,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:51:34,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-11-07 20:51:34,856 INFO L87 Difference]: Start difference. First operand 7846 states and 9555 transitions. Second operand 11 states. [2018-11-07 20:51:44,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:51:44,467 INFO L93 Difference]: Finished difference Result 16566 states and 22137 transitions. [2018-11-07 20:51:44,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 20:51:44,469 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 515 [2018-11-07 20:51:44,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:51:44,527 INFO L225 Difference]: With dead ends: 16566 [2018-11-07 20:51:44,527 INFO L226 Difference]: Without dead ends: 11406 [2018-11-07 20:51:44,589 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1070 GetRequests, 1039 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=204, Invalid=552, Unknown=0, NotChecked=0, Total=756 [2018-11-07 20:51:44,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11406 states. [2018-11-07 20:51:44,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11406 to 11091. [2018-11-07 20:51:44,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11091 states. [2018-11-07 20:51:44,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11091 states to 11091 states and 13108 transitions. [2018-11-07 20:51:44,876 INFO L78 Accepts]: Start accepts. Automaton has 11091 states and 13108 transitions. Word has length 515 [2018-11-07 20:51:44,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:51:44,877 INFO L480 AbstractCegarLoop]: Abstraction has 11091 states and 13108 transitions. [2018-11-07 20:51:44,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-07 20:51:44,878 INFO L276 IsEmpty]: Start isEmpty. Operand 11091 states and 13108 transitions. [2018-11-07 20:51:44,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2018-11-07 20:51:44,914 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:51:44,914 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, 4, 4, 4, 4, 4, 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, 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] [2018-11-07 20:51:44,915 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:51:44,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:44,915 INFO L82 PathProgramCache]: Analyzing trace with hash 921321506, now seen corresponding path program 1 times [2018-11-07 20:51:44,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:51:44,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:44,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:51:44,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:51:44,917 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:51:45,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:51:45,510 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:51:46,693 WARN L179 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2018-11-07 20:51:46,911 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2018-11-07 20:51:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 198 proven. 363 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2018-11-07 20:51:47,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:51:47,643 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:51:47,643 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 570 with the following transitions: [2018-11-07 20:51:47,644 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [687], [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] [2018-11-07 20:51:47,652 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:51:47,653 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:51:47,929 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:51:48,925 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:51:48,925 INFO L272 AbstractInterpreter]: Visited 285 different actions 854 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 20:51:48,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:51:48,965 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:51:49,636 INFO L227 lantSequenceWeakener]: Weakened 566 states. On average, predicates are now at 80.26% of their original sizes. [2018-11-07 20:51:49,636 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:51:49,865 INFO L415 sIntCurrentIteration]: We unified 568 AI predicates to 568 [2018-11-07 20:51:49,866 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:51:49,866 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:51:49,866 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-11-07 20:51:49,866 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:51:49,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 20:51:49,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 20:51:49,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:51:49,868 INFO L87 Difference]: Start difference. First operand 11091 states and 13108 transitions. Second operand 10 states. [2018-11-07 20:51:59,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:51:59,848 INFO L93 Difference]: Finished difference Result 21401 states and 25636 transitions. [2018-11-07 20:51:59,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-07 20:51:59,849 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 569 [2018-11-07 20:51:59,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:51:59,896 INFO L225 Difference]: With dead ends: 21401 [2018-11-07 20:51:59,896 INFO L226 Difference]: Without dead ends: 13616 [2018-11-07 20:51:59,914 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 575 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-07 20:51:59,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13616 states. [2018-11-07 20:52:00,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13616 to 13605. [2018-11-07 20:52:00,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13605 states. [2018-11-07 20:52:00,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13605 states to 13605 states and 15864 transitions. [2018-11-07 20:52:00,169 INFO L78 Accepts]: Start accepts. Automaton has 13605 states and 15864 transitions. Word has length 569 [2018-11-07 20:52:00,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:52:00,170 INFO L480 AbstractCegarLoop]: Abstraction has 13605 states and 15864 transitions. [2018-11-07 20:52:00,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 20:52:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 13605 states and 15864 transitions. [2018-11-07 20:52:00,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2018-11-07 20:52:00,208 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:52:00,209 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:52:00,209 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:52:00,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:52:00,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1723841079, now seen corresponding path program 1 times [2018-11-07 20:52:00,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:52:00,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:52:00,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:52:00,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:52:00,211 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:52:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:52:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 398 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-07 20:52:00,903 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:52:00,904 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:52:00,904 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 586 with the following transitions: [2018-11-07 20:52:00,904 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], [357], [359], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [613], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 20:52:00,909 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:52:00,910 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:52:01,104 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:52:03,160 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 20:52:03,160 INFO L272 AbstractInterpreter]: Visited 286 different actions 1705 times. Merged at 9 different actions 48 times. Widened at 1 different actions 1 times. Found 14 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 20:52:03,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:52:03,172 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 20:52:03,172 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:52:03,172 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 20:52:03,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:52:03,184 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 20:52:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:52:03,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 20:52:03,626 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 398 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-07 20:52:03,627 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 20:52:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 398 proven. 2 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2018-11-07 20:52:04,277 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 20:52:04,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2018-11-07 20:52:04,278 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 20:52:04,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 20:52:04,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 20:52:04,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:52:04,279 INFO L87 Difference]: Start difference. First operand 13605 states and 15864 transitions. Second operand 7 states. Received shutdown request... [2018-11-07 20:52:08,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:52:08,373 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:52:08,380 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:52:08,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:52:08 BoogieIcfgContainer [2018-11-07 20:52:08,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:52:08,381 INFO L168 Benchmark]: Toolchain (without parser) took 212727.16 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 55.1 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-11-07 20:52:08,382 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:52:08,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1444.00 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-11-07 20:52:08,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 259.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -915.0 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-07 20:52:08,385 INFO L168 Benchmark]: Boogie Preprocessor took 169.50 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2018-11-07 20:52:08,386 INFO L168 Benchmark]: RCFGBuilder took 6706.62 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: 289.6 MB). Peak memory consumption was 289.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:52:08,387 INFO L168 Benchmark]: TraceAbstraction took 204142.17 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 547.2 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-11-07 20:52:08,394 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1444.00 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 259.70 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 771.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -915.0 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.50 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6706.62 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: 289.6 MB). Peak memory consumption was 289.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204142.17 ms. Allocated memory was 2.3 GB in the beginning and 4.8 GB in the end (delta: 2.5 GB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 547.2 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 130). Cancelled while BasicCegarLoop was constructing difference of abstraction (13605states) and FLOYD_HOARE automaton (currently 8 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (18433 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 204.0s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 170.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3325 SDtfs, 27625 SDslu, 2821 SDs, 0 SdLazy, 30662 SolverSat, 4949 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 67.7s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 4289 GetRequests, 3897 SyntacticMatches, 242 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2344 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13605occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.4s AbstIntTime, 7 AbstIntIterations, 5 AbstIntStrong, 0.9975747998939929 AbsIntWeakeningRatio, 0.08299595141700405 AbsIntAvgWeakeningVarsNumRemoved, 12.878542510121457 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 1606 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 4479 NumberOfCodeBlocks, 4479 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 5565 ConstructedInterpolants, 0 QuantifiedInterpolants, 8556728 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1577 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 4016/5102 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown