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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label31_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:08:33,703 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:08:33,705 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:08:33,724 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:08:33,724 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:08:33,726 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:08:33,728 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:08:33,730 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:08:33,732 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:08:33,734 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:08:33,735 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:08:33,735 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:08:33,738 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:08:33,740 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:08:33,741 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:08:33,744 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:08:33,745 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:08:33,756 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:08:33,760 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:08:33,762 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:08:33,766 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:08:33,767 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:08:33,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:08:33,771 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:08:33,775 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:08:33,776 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:08:33,777 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:08:33,780 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:08:33,782 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:08:33,785 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:08:33,785 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:08:33,786 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 09:08:33,786 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 09:08:33,786 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 09:08:33,787 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 09:08:33,789 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 09:08:33,789 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:08:33,809 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:08:33,809 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:08:33,810 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:08:33,810 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:08:33,810 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:08:33,811 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:08:33,811 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:08:33,811 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:08:33,811 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:08:33,812 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:08:33,812 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:08:33,812 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:08:33,812 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:08:33,812 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:08:33,813 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:08:33,813 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:08:33,813 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:08:33,814 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:08:33,814 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:08:33,814 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:08:33,814 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:08:33,815 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:08:33,815 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:08:33,815 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:08:33,815 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:08:33,815 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:08:33,816 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:08:33,816 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:08:33,816 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:08:33,816 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:08:33,816 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:08:33,817 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:08:33,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:08:33,817 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:08:33,817 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:08:33,817 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:08:33,881 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:08:33,904 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:08:33,908 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:08:33,910 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:08:33,910 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:08:33,911 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label31_true-unreach-call.c [2018-11-07 09:08:33,981 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7caaf651/297130b074504d0fbfa073662cc3cd93/FLAG83d600a57 [2018-11-07 09:08:34,685 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:08:34,686 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label31_true-unreach-call.c [2018-11-07 09:08:34,705 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7caaf651/297130b074504d0fbfa073662cc3cd93/FLAG83d600a57 [2018-11-07 09:08:34,721 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7caaf651/297130b074504d0fbfa073662cc3cd93 [2018-11-07 09:08:34,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:08:34,735 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:08:34,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:08:34,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:08:34,741 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:08:34,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:08:34" (1/1) ... [2018-11-07 09:08:34,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@485fe993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:34, skipping insertion in model container [2018-11-07 09:08:34,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:08:34" (1/1) ... [2018-11-07 09:08:34,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:08:34,862 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:08:35,843 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:08:35,848 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:08:36,236 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:08:36,259 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:08:36,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36 WrapperNode [2018-11-07 09:08:36,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:08:36,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:08:36,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:08:36,263 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:08:36,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (1/1) ... [2018-11-07 09:08:36,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (1/1) ... [2018-11-07 09:08:36,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:08:36,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:08:36,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:08:36,480 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:08:36,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (1/1) ... [2018-11-07 09:08:36,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (1/1) ... [2018-11-07 09:08:36,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (1/1) ... [2018-11-07 09:08:36,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (1/1) ... [2018-11-07 09:08:36,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (1/1) ... [2018-11-07 09:08:36,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (1/1) ... [2018-11-07 09:08:36,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (1/1) ... [2018-11-07 09:08:36,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:08:36,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:08:36,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:08:36,690 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:08:36,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (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 09:08:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:08:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:08:36,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:08:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:08:36,761 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:08:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:08:36,761 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:08:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:08:36,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:08:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:08:36,762 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:08:44,007 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:08:44,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:08:44 BoogieIcfgContainer [2018-11-07 09:08:44,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:08:44,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:08:44,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:08:44,014 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:08:44,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:08:34" (1/3) ... [2018-11-07 09:08:44,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3a810b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:08:44, skipping insertion in model container [2018-11-07 09:08:44,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:08:36" (2/3) ... [2018-11-07 09:08:44,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3a810b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:08:44, skipping insertion in model container [2018-11-07 09:08:44,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:08:44" (3/3) ... [2018-11-07 09:08:44,018 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label31_true-unreach-call.c [2018-11-07 09:08:44,028 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:08:44,040 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:08:44,055 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:08:44,097 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:08:44,098 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:08:44,098 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:08:44,098 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:08:44,098 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:08:44,098 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:08:44,099 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:08:44,099 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:08:44,142 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 09:08:44,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-11-07 09:08:44,157 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:08:44,159 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:08:44,161 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:08:44,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:08:44,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1590942004, now seen corresponding path program 1 times [2018-11-07 09:08:44,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:08:44,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:08:44,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:08:44,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:08:44,223 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:08:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:08:44,734 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 09:08:44,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:08:44,737 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 09:08:44,737 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:08:44,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:08:44,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:08:44,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:08:44,763 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 09:08:51,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:08:51,492 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-11-07 09:08:51,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:08:51,495 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2018-11-07 09:08:51,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:08:51,522 INFO L225 Difference]: With dead ends: 1558 [2018-11-07 09:08:51,522 INFO L226 Difference]: Without dead ends: 1114 [2018-11-07 09:08:51,531 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:08:51,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-11-07 09:08:51,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 759. [2018-11-07 09:08:51,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2018-11-07 09:08:51,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1355 transitions. [2018-11-07 09:08:51,644 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 1355 transitions. Word has length 72 [2018-11-07 09:08:51,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:08:51,645 INFO L480 AbstractCegarLoop]: Abstraction has 759 states and 1355 transitions. [2018-11-07 09:08:51,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 09:08:51,645 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 1355 transitions. [2018-11-07 09:08:51,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-07 09:08:51,655 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:08:51,655 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:08:51,656 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:08:51,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:08:51,656 INFO L82 PathProgramCache]: Analyzing trace with hash 783939575, now seen corresponding path program 1 times [2018-11-07 09:08:51,656 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:08:51,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:08:51,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:08:51,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:08:51,658 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:08:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:08:51,979 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:08:51,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:08:51,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 09:08:51,980 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:08:51,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:08:51,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:08:51,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:08:51,983 INFO L87 Difference]: Start difference. First operand 759 states and 1355 transitions. Second operand 4 states. [2018-11-07 09:08:56,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:08:56,889 INFO L93 Difference]: Finished difference Result 2755 states and 5131 transitions. [2018-11-07 09:08:56,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:08:56,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2018-11-07 09:08:56,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:08:56,920 INFO L225 Difference]: With dead ends: 2755 [2018-11-07 09:08:56,921 INFO L226 Difference]: Without dead ends: 2002 [2018-11-07 09:08:56,930 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:08:56,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2018-11-07 09:08:56,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1999. [2018-11-07 09:08:56,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1999 states. [2018-11-07 09:08:57,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 3228 transitions. [2018-11-07 09:08:57,009 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 3228 transitions. Word has length 142 [2018-11-07 09:08:57,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:08:57,009 INFO L480 AbstractCegarLoop]: Abstraction has 1999 states and 3228 transitions. [2018-11-07 09:08:57,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 09:08:57,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 3228 transitions. [2018-11-07 09:08:57,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-11-07 09:08:57,018 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:08:57,018 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:08:57,018 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:08:57,019 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:08:57,019 INFO L82 PathProgramCache]: Analyzing trace with hash -516926077, now seen corresponding path program 1 times [2018-11-07 09:08:57,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:08:57,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:08:57,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:08:57,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:08:57,021 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:08:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:08:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:08:57,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:08:57,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 09:08:57,256 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:08:57,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 09:08:57,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 09:08:57,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 09:08:57,258 INFO L87 Difference]: Start difference. First operand 1999 states and 3228 transitions. Second operand 5 states. [2018-11-07 09:09:02,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:09:02,882 INFO L93 Difference]: Finished difference Result 6002 states and 9890 transitions. [2018-11-07 09:09:02,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 09:09:02,889 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 189 [2018-11-07 09:09:02,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:09:02,925 INFO L225 Difference]: With dead ends: 6002 [2018-11-07 09:09:02,925 INFO L226 Difference]: Without dead ends: 4009 [2018-11-07 09:09:02,939 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 09:09:02,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4009 states. [2018-11-07 09:09:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4009 to 3952. [2018-11-07 09:09:03,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3952 states. [2018-11-07 09:09:03,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 5722 transitions. [2018-11-07 09:09:03,082 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 5722 transitions. Word has length 189 [2018-11-07 09:09:03,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:09:03,083 INFO L480 AbstractCegarLoop]: Abstraction has 3952 states and 5722 transitions. [2018-11-07 09:09:03,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 09:09:03,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 5722 transitions. [2018-11-07 09:09:03,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 454 [2018-11-07 09:09:03,103 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:09:03,103 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:09:03,103 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:09:03,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:09:03,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1415360072, now seen corresponding path program 1 times [2018-11-07 09:09:03,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:09:03,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:09:03,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:09:03,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:09:03,106 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:09:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:09:04,242 WARN L179 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2018-11-07 09:09:04,779 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 334 proven. 98 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-11-07 09:09:04,780 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:09:04,780 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:09:04,781 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 454 with the following transitions: [2018-11-07 09:09:04,783 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [549], [551], [554], [562], [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], [688], [692], [696], [707], [710], [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], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 09:09:04,851 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:09:04,852 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:09:05,972 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:09:05,974 INFO L272 AbstractInterpreter]: Visited 207 different actions 207 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 09:09:06,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:09:06,019 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:09:07,100 INFO L227 lantSequenceWeakener]: Weakened 441 states. On average, predicates are now at 77.87% of their original sizes. [2018-11-07 09:09:07,100 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:09:07,380 INFO L415 sIntCurrentIteration]: We unified 452 AI predicates to 452 [2018-11-07 09:09:07,381 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:09:07,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:09:07,382 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2018-11-07 09:09:07,382 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:09:07,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:09:07,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:09:07,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:09:07,384 INFO L87 Difference]: Start difference. First operand 3952 states and 5722 transitions. Second operand 6 states. [2018-11-07 09:09:35,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:09:35,604 INFO L93 Difference]: Finished difference Result 8208 states and 11776 transitions. [2018-11-07 09:09:35,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:09:35,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 453 [2018-11-07 09:09:35,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:09:35,626 INFO L225 Difference]: With dead ends: 8208 [2018-11-07 09:09:35,626 INFO L226 Difference]: Without dead ends: 4262 [2018-11-07 09:09:35,645 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 453 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 09:09:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4262 states. [2018-11-07 09:09:35,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4262 to 4260. [2018-11-07 09:09:35,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4260 states. [2018-11-07 09:09:35,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 6039 transitions. [2018-11-07 09:09:35,749 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 6039 transitions. Word has length 453 [2018-11-07 09:09:35,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:09:35,749 INFO L480 AbstractCegarLoop]: Abstraction has 4260 states and 6039 transitions. [2018-11-07 09:09:35,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:09:35,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 6039 transitions. [2018-11-07 09:09:35,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2018-11-07 09:09:35,770 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:09:35,770 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:09:35,771 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:09:35,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:09:35,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1738424593, now seen corresponding path program 1 times [2018-11-07 09:09:35,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:09:35,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:09:35,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:09:35,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:09:35,773 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:09:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:09:36,406 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 5 [2018-11-07 09:09:36,592 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2018-11-07 09:09:36,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:09:36,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 09:09:36,593 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:09:36,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:09:36,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:09:36,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:09:36,595 INFO L87 Difference]: Start difference. First operand 4260 states and 6039 transitions. Second operand 4 states. [2018-11-07 09:09:41,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:09:41,425 INFO L93 Difference]: Finished difference Result 15390 states and 22659 transitions. [2018-11-07 09:09:41,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:09:41,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 527 [2018-11-07 09:09:41,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:09:41,467 INFO L225 Difference]: With dead ends: 15390 [2018-11-07 09:09:41,468 INFO L226 Difference]: Without dead ends: 7672 [2018-11-07 09:09:41,531 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 09:09:41,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7672 states. [2018-11-07 09:09:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7672 to 7670. [2018-11-07 09:09:41,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7670 states. [2018-11-07 09:09:41,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 9884 transitions. [2018-11-07 09:09:41,724 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 9884 transitions. Word has length 527 [2018-11-07 09:09:41,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:09:41,725 INFO L480 AbstractCegarLoop]: Abstraction has 7670 states and 9884 transitions. [2018-11-07 09:09:41,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 09:09:41,726 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 9884 transitions. [2018-11-07 09:09:41,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2018-11-07 09:09:41,761 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:09:41,762 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:09:41,762 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:09:41,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:09:41,763 INFO L82 PathProgramCache]: Analyzing trace with hash -523466956, now seen corresponding path program 1 times [2018-11-07 09:09:41,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:09:41,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:09:41,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:09:41,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:09:41,765 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:09:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:09:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 284 proven. 85 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-07 09:09:42,493 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:09:42,493 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:09:42,493 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 536 with the following transitions: [2018-11-07 09:09:42,494 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [549], [551], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [644], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [722], [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 09:09:42,504 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:09:42,505 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:09:43,710 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:09:43,711 INFO L272 AbstractInterpreter]: Visited 285 different actions 1134 times. Merged at 8 different actions 29 times. Never widened. Found 6 fixpoints after 3 different actions. Largest state had 24 variables. [2018-11-07 09:09:43,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:09:43,750 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:09:43,750 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:09:43,751 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 09:09:43,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:09:43,768 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:09:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:09:44,033 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:09:44,596 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 401 proven. 2 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-11-07 09:09:44,596 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:09:44,868 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-07 09:09:45,340 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 284 proven. 85 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-07 09:09:45,366 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 09:09:45,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 09:09:45,367 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 09:09:45,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 09:09:45,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 09:09:45,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-07 09:09:45,369 INFO L87 Difference]: Start difference. First operand 7670 states and 9884 transitions. Second operand 9 states. [2018-11-07 09:09:54,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:09:54,482 INFO L93 Difference]: Finished difference Result 20463 states and 31127 transitions. [2018-11-07 09:09:54,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 09:09:54,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 535 [2018-11-07 09:09:54,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:09:54,635 INFO L225 Difference]: With dead ends: 20463 [2018-11-07 09:09:54,636 INFO L226 Difference]: Without dead ends: 13107 [2018-11-07 09:09:54,764 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1093 GetRequests, 1074 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2018-11-07 09:09:54,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13107 states. [2018-11-07 09:09:55,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13107 to 13024. [2018-11-07 09:09:55,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13024 states. [2018-11-07 09:09:55,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13024 states to 13024 states and 18065 transitions. [2018-11-07 09:09:55,314 INFO L78 Accepts]: Start accepts. Automaton has 13024 states and 18065 transitions. Word has length 535 [2018-11-07 09:09:55,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:09:55,315 INFO L480 AbstractCegarLoop]: Abstraction has 13024 states and 18065 transitions. [2018-11-07 09:09:55,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 09:09:55,315 INFO L276 IsEmpty]: Start isEmpty. Operand 13024 states and 18065 transitions. [2018-11-07 09:09:55,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2018-11-07 09:09:55,353 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:09:55,354 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:09:55,354 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:09:55,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:09:55,355 INFO L82 PathProgramCache]: Analyzing trace with hash 109211519, now seen corresponding path program 1 times [2018-11-07 09:09:55,355 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:09:55,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:09:55,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:09:55,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:09:55,356 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:09:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:09:56,495 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 392 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 09:09:56,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:09:56,495 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:09:56,497 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 560 with the following transitions: [2018-11-07 09:09:56,498 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [549], [551], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [699], [704], [706], [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 09:09:56,510 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:09:56,510 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:10:02,280 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:10:02,281 INFO L272 AbstractInterpreter]: Visited 287 different actions 856 times. Merged at 8 different actions 23 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 09:10:02,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:10:02,318 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:10:02,318 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:10:02,318 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 09:10:02,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:10:02,330 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:10:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:10:02,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:10:02,771 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 392 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 09:10:02,771 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:10:03,187 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 392 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-11-07 09:10:03,217 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 09:10:03,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 09:10:03,217 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 09:10:03,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 09:10:03,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 09:10:03,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-11-07 09:10:03,219 INFO L87 Difference]: Start difference. First operand 13024 states and 18065 transitions. Second operand 9 states. [2018-11-07 09:10:11,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:10:11,083 INFO L93 Difference]: Finished difference Result 31097 states and 50744 transitions. [2018-11-07 09:10:11,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 09:10:11,083 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 559 [2018-11-07 09:10:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:10:11,227 INFO L225 Difference]: With dead ends: 31097 [2018-11-07 09:10:11,227 INFO L226 Difference]: Without dead ends: 18387 [2018-11-07 09:10:11,357 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1141 GetRequests, 1122 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2018-11-07 09:10:11,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18387 states. [2018-11-07 09:10:11,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18387 to 18315. [2018-11-07 09:10:11,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18315 states. [2018-11-07 09:10:12,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18315 states to 18315 states and 26100 transitions. [2018-11-07 09:10:12,088 INFO L78 Accepts]: Start accepts. Automaton has 18315 states and 26100 transitions. Word has length 559 [2018-11-07 09:10:12,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:10:12,089 INFO L480 AbstractCegarLoop]: Abstraction has 18315 states and 26100 transitions. [2018-11-07 09:10:12,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 09:10:12,090 INFO L276 IsEmpty]: Start isEmpty. Operand 18315 states and 26100 transitions. [2018-11-07 09:10:12,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2018-11-07 09:10:12,104 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:10:12,105 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:10:12,105 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:10:12,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:10:12,106 INFO L82 PathProgramCache]: Analyzing trace with hash 404400210, now seen corresponding path program 1 times [2018-11-07 09:10:12,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:10:12,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:10:12,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:10:12,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:10:12,109 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:10:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:10:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 201 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-11-07 09:10:12,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:10:12,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 09:10:12,715 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:10:12,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:10:12,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:10:12,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:10:12,717 INFO L87 Difference]: Start difference. First operand 18315 states and 26100 transitions. Second operand 3 states. [2018-11-07 09:10:16,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:10:16,321 INFO L93 Difference]: Finished difference Result 44900 states and 71264 transitions. [2018-11-07 09:10:16,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:10:16,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 561 [2018-11-07 09:10:16,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:10:16,578 INFO L225 Difference]: With dead ends: 44900 [2018-11-07 09:10:16,578 INFO L226 Difference]: Without dead ends: 26899 [2018-11-07 09:10:16,829 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:10:16,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26899 states. [2018-11-07 09:10:17,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26899 to 26895. [2018-11-07 09:10:17,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26895 states. [2018-11-07 09:10:17,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26895 states to 26895 states and 38421 transitions. [2018-11-07 09:10:17,805 INFO L78 Accepts]: Start accepts. Automaton has 26895 states and 38421 transitions. Word has length 561 [2018-11-07 09:10:17,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:10:17,806 INFO L480 AbstractCegarLoop]: Abstraction has 26895 states and 38421 transitions. [2018-11-07 09:10:17,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:10:17,807 INFO L276 IsEmpty]: Start isEmpty. Operand 26895 states and 38421 transitions. [2018-11-07 09:10:18,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2018-11-07 09:10:18,009 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:10:18,010 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:10:18,010 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:10:18,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:10:18,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1792061656, now seen corresponding path program 1 times [2018-11-07 09:10:18,011 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:10:18,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:10:18,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:10:18,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:10:18,015 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:10:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:10:18,768 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:10:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 389 proven. 199 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-11-07 09:10:20,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:10:20,075 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:10:20,076 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 822 with the following transitions: [2018-11-07 09:10:20,076 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [549], [551], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [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], [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], [1167], [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], [1562], [1566], [1570], [1573], [1576], [1580], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 09:10:20,082 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:10:20,082 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:10:20,552 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:10:20,552 INFO L272 AbstractInterpreter]: Visited 288 different actions 858 times. Merged at 7 different actions 17 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 09:10:20,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:10:20,560 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:10:21,522 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 84.47% of their original sizes. [2018-11-07 09:10:21,523 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:10:21,781 INFO L415 sIntCurrentIteration]: We unified 820 AI predicates to 820 [2018-11-07 09:10:21,781 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:10:21,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:10:21,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [8] total 22 [2018-11-07 09:10:21,782 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:10:21,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 09:10:21,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 09:10:21,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2018-11-07 09:10:21,783 INFO L87 Difference]: Start difference. First operand 26895 states and 38421 transitions. Second operand 16 states. [2018-11-07 09:11:56,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:11:56,665 INFO L93 Difference]: Finished difference Result 56679 states and 80752 transitions. [2018-11-07 09:11:56,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-11-07 09:11:56,665 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 821 [2018-11-07 09:11:56,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:11:56,906 INFO L225 Difference]: With dead ends: 56679 [2018-11-07 09:11:56,907 INFO L226 Difference]: Without dead ends: 30098 [2018-11-07 09:11:57,130 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 837 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=190, Invalid=866, Unknown=0, NotChecked=0, Total=1056 [2018-11-07 09:11:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30098 states. [2018-11-07 09:11:57,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30098 to 29742. [2018-11-07 09:11:57,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29742 states. [2018-11-07 09:11:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29742 states to 29742 states and 41735 transitions. [2018-11-07 09:11:58,147 INFO L78 Accepts]: Start accepts. Automaton has 29742 states and 41735 transitions. Word has length 821 [2018-11-07 09:11:58,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:11:58,148 INFO L480 AbstractCegarLoop]: Abstraction has 29742 states and 41735 transitions. [2018-11-07 09:11:58,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 09:11:58,149 INFO L276 IsEmpty]: Start isEmpty. Operand 29742 states and 41735 transitions. [2018-11-07 09:11:58,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2018-11-07 09:11:58,317 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:11:58,317 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 09:11:58,318 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:11:58,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:11:58,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1994379454, now seen corresponding path program 1 times [2018-11-07 09:11:58,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:11:58,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:11:58,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:11:58,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:11:58,320 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:11:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:12:00,092 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 753 proven. 2 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-11-07 09:12:00,093 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:12:00,093 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:12:00,093 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 842 with the following transitions: [2018-11-07 09:12:00,093 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [549], [551], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [722], [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], [1562], [1566], [1570], [1573], [1576], [1580], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 09:12:00,098 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:12:00,098 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:12:04,033 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 09:12:04,034 INFO L272 AbstractInterpreter]: Visited 290 different actions 864 times. Merged at 8 different actions 19 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 09:12:04,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:12:04,039 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 09:12:04,039 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:12:04,039 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 09:12:04,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:12:04,051 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 09:12:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:12:04,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 09:12:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 587 proven. 0 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2018-11-07 09:12:05,620 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 09:12:05,975 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2018-11-07 09:12:05,997 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:12:05,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [7] total 10 [2018-11-07 09:12:05,998 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:12:05,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:12:05,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:12:05,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:12:05,999 INFO L87 Difference]: Start difference. First operand 29742 states and 41735 transitions. Second operand 4 states. [2018-11-07 09:12:10,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:12:10,364 INFO L93 Difference]: Finished difference Result 56759 states and 79882 transitions. [2018-11-07 09:12:10,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:12:10,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 841 [2018-11-07 09:12:10,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:12:10,368 INFO L225 Difference]: With dead ends: 56759 [2018-11-07 09:12:10,368 INFO L226 Difference]: Without dead ends: 0 Received shutdown request... [2018-11-07 09:12:10,797 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1688 GetRequests, 1679 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:12:10,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 09:12:10,798 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:12:10,803 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:12:10,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:12:10 BoogieIcfgContainer [2018-11-07 09:12:10,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:12:10,804 INFO L168 Benchmark]: Toolchain (without parser) took 216070.44 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-11-07 09:12:10,805 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 09:12:10,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1526.10 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 09:12:10,806 INFO L168 Benchmark]: Boogie Procedure Inliner took 216.96 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 734.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -880.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-07 09:12:10,807 INFO L168 Benchmark]: Boogie Preprocessor took 209.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-11-07 09:12:10,808 INFO L168 Benchmark]: RCFGBuilder took 7318.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 286.5 MB). Peak memory consumption was 286.5 MB. Max. memory is 7.1 GB. [2018-11-07 09:12:10,809 INFO L168 Benchmark]: TraceAbstraction took 206793.40 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.0 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-11-07 09:12:10,814 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1526.10 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 216.96 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 734.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -880.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 209.85 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7318.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 286.5 MB). Peak memory consumption was 286.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206793.40 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.0 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 202]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 202). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 206.7s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 172.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3112 SDtfs, 14895 SDslu, 2339 SDs, 0 SdLazy, 25827 SolverSat, 4795 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 125.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 5242 GetRequests, 5145 SyntacticMatches, 4 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29742occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 12.7s AbstIntTime, 5 AbstIntIterations, 2 AbstIntStrong, 0.9986109000594562 AbsIntWeakeningRatio, 0.050314465408805034 AbsIntAvgWeakeningVarsNumRemoved, 16.09512578616352 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 934 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 6635 NumberOfCodeBlocks, 6635 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 8554 ConstructedInterpolants, 0 QuantifiedInterpolants, 17099614 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2639 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 8045/8522 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown