java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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/Problem11_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:34:19,243 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:34:19,245 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:34:19,261 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:34:19,262 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:34:19,263 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:34:19,264 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:34:19,266 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:34:19,269 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:34:19,271 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:34:19,272 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:34:19,272 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:34:19,273 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:34:19,274 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:34:19,278 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:34:19,282 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:34:19,284 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:34:19,290 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:34:19,294 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:34:19,297 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:34:19,299 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:34:19,300 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:34:19,303 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 01:34:19,303 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 01:34:19,304 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 01:34:19,305 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 01:34:19,307 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 01:34:19,311 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 01:34:19,313 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 01:34:19,314 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 01:34:19,314 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 01:34:19,314 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-25 01:34:19,317 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 01:34:19,348 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:34:19,349 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:34:19,350 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:34:19,350 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:34:19,350 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:34:19,350 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:34:19,350 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:34:19,351 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:34:19,351 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:34:19,351 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:34:19,351 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:34:19,351 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:34:19,352 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:34:19,352 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:34:19,353 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:34:19,353 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:34:19,353 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:34:19,353 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:34:19,354 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:34:19,354 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:34:19,354 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:34:19,354 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:34:19,355 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:34:19,355 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:34:19,355 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:34:19,355 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:34:19,355 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:34:19,356 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:34:19,356 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:34:19,356 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:34:19,356 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:34:19,356 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:34:19,357 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:34:19,357 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:34:19,357 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:34:19,357 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:34:19,406 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:34:19,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:34:19,427 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:34:19,429 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:34:19,429 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:34:19,430 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label55_true-unreach-call.c [2018-10-25 01:34:19,503 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/59a2095ab/6c28313f1b40425c9aa9a0bf2727c4a6/FLAG22722502f [2018-10-25 01:34:20,157 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:34:20,160 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label55_true-unreach-call.c [2018-10-25 01:34:20,179 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/59a2095ab/6c28313f1b40425c9aa9a0bf2727c4a6/FLAG22722502f [2018-10-25 01:34:20,204 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/59a2095ab/6c28313f1b40425c9aa9a0bf2727c4a6 [2018-10-25 01:34:20,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:34:20,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:34:20,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:34:20,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:34:20,226 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:34:20,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:34:20" (1/1) ... [2018-10-25 01:34:20,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a5722cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:20, skipping insertion in model container [2018-10-25 01:34:20,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:34:20" (1/1) ... [2018-10-25 01:34:20,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:34:20,322 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:34:21,086 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:34:21,091 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:34:21,292 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:34:21,314 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:34:21,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21 WrapperNode [2018-10-25 01:34:21,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:34:21,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:34:21,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:34:21,317 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:34:21,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (1/1) ... [2018-10-25 01:34:21,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (1/1) ... [2018-10-25 01:34:21,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:34:21,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:34:21,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:34:21,615 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:34:21,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (1/1) ... [2018-10-25 01:34:21,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (1/1) ... [2018-10-25 01:34:21,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (1/1) ... [2018-10-25 01:34:21,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (1/1) ... [2018-10-25 01:34:21,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (1/1) ... [2018-10-25 01:34:21,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (1/1) ... [2018-10-25 01:34:21,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (1/1) ... [2018-10-25 01:34:21,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:34:21,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:34:21,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:34:21,767 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:34:21,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-25 01:34:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:34:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:34:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:34:21,836 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:34:21,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:34:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:34:21,837 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:34:21,837 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:34:26,173 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:34:26,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:34:26 BoogieIcfgContainer [2018-10-25 01:34:26,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:34:26,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:34:26,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:34:26,179 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:34:26,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:34:20" (1/3) ... [2018-10-25 01:34:26,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1772fbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:34:26, skipping insertion in model container [2018-10-25 01:34:26,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:34:21" (2/3) ... [2018-10-25 01:34:26,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1772fbcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:34:26, skipping insertion in model container [2018-10-25 01:34:26,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:34:26" (3/3) ... [2018-10-25 01:34:26,184 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label55_true-unreach-call.c [2018-10-25 01:34:26,194 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:34:26,205 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:34:26,223 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:34:26,265 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:34:26,265 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:34:26,266 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:34:26,266 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:34:26,266 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:34:26,266 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:34:26,266 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:34:26,267 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:34:26,297 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-25 01:34:26,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-25 01:34:26,307 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:34:26,309 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] [2018-10-25 01:34:26,311 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:34:26,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:34:26,318 INFO L82 PathProgramCache]: Analyzing trace with hash 2008695804, now seen corresponding path program 1 times [2018-10-25 01:34:26,320 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:34:26,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:26,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:34:26,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:26,376 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:34:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:34:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:34:26,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:34:26,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:34:26,835 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:34:26,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:34:26,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:34:26,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:34:26,861 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-25 01:34:30,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:34:30,420 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-10-25 01:34:30,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:34:30,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-10-25 01:34:30,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:34:30,449 INFO L225 Difference]: With dead ends: 979 [2018-10-25 01:34:30,449 INFO L226 Difference]: Without dead ends: 680 [2018-10-25 01:34:30,461 INFO L605 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 [2018-10-25 01:34:30,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-10-25 01:34:30,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-10-25 01:34:30,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-10-25 01:34:30,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-10-25 01:34:30,559 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 52 [2018-10-25 01:34:30,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:34:30,560 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-10-25 01:34:30,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:34:30,560 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-10-25 01:34:30,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-25 01:34:30,567 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:34:30,568 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:34:30,568 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:34:30,570 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:34:30,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1306963893, now seen corresponding path program 1 times [2018-10-25 01:34:30,570 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:34:30,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:30,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:34:30,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:30,573 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:34:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:34:30,965 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:34:30,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:34:30,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:34:30,966 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:34:30,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:34:30,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:34:30,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:34:30,969 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-10-25 01:34:35,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:34:35,196 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-10-25 01:34:35,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:34:35,201 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-10-25 01:34:35,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:34:35,219 INFO L225 Difference]: With dead ends: 1555 [2018-10-25 01:34:35,220 INFO L226 Difference]: Without dead ends: 1077 [2018-10-25 01:34:35,225 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 01:34:35,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-10-25 01:34:35,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-10-25 01:34:35,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-10-25 01:34:35,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-10-25 01:34:35,307 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 125 [2018-10-25 01:34:35,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:34:35,311 INFO L481 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-10-25 01:34:35,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:34:35,312 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-10-25 01:34:35,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-25 01:34:35,316 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:34:35,317 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:34:35,317 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:34:35,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:34:35,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1349379296, now seen corresponding path program 1 times [2018-10-25 01:34:35,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:34:35,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:35,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:34:35,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:35,320 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:34:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:34:35,601 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:34:35,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:34:35,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:34:35,601 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:34:35,602 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:34:35,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:34:35,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:34:35,604 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 4 states. [2018-10-25 01:34:38,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:34:38,593 INFO L93 Difference]: Finished difference Result 2907 states and 4465 transitions. [2018-10-25 01:34:38,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:34:38,595 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2018-10-25 01:34:38,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:34:38,615 INFO L225 Difference]: With dead ends: 2907 [2018-10-25 01:34:38,615 INFO L226 Difference]: Without dead ends: 1850 [2018-10-25 01:34:38,627 INFO L605 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 [2018-10-25 01:34:38,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2018-10-25 01:34:38,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1646. [2018-10-25 01:34:38,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-10-25 01:34:38,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2436 transitions. [2018-10-25 01:34:38,703 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2436 transitions. Word has length 126 [2018-10-25 01:34:38,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:34:38,704 INFO L481 AbstractCegarLoop]: Abstraction has 1646 states and 2436 transitions. [2018-10-25 01:34:38,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:34:38,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2436 transitions. [2018-10-25 01:34:38,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-10-25 01:34:38,712 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:34:38,712 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:34:38,713 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:34:38,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:34:38,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1663032705, now seen corresponding path program 1 times [2018-10-25 01:34:38,714 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:34:38,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:38,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:34:38,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:34:38,716 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:34:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:34:39,573 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:34:39,573 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:34:39,573 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:34:39,574 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-10-25 01:34:39,577 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:34:39,631 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:34:39,637 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:34:40,442 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:34:40,444 INFO L272 AbstractInterpreter]: Visited 99 different actions 99 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-25 01:34:40,488 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:34:40,489 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:34:41,183 INFO L232 lantSequenceWeakener]: Weakened 141 states. On average, predicates are now at 73.8% of their original sizes. [2018-10-25 01:34:41,184 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:34:41,441 INFO L413 sIntCurrentIteration]: We have 146 unified AI predicates [2018-10-25 01:34:41,441 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:34:41,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:34:41,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-10-25 01:34:41,443 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:34:41,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:34:41,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:34:41,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:34:41,445 INFO L87 Difference]: Start difference. First operand 1646 states and 2436 transitions. Second operand 6 states. [2018-10-25 01:35:20,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:35:20,259 INFO L93 Difference]: Finished difference Result 3478 states and 5113 transitions. [2018-10-25 01:35:20,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:35:20,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 147 [2018-10-25 01:35:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:35:20,270 INFO L225 Difference]: With dead ends: 3478 [2018-10-25 01:35:20,270 INFO L226 Difference]: Without dead ends: 1838 [2018-10-25 01:35:20,276 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 147 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:35:20,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2018-10-25 01:35:20,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1836. [2018-10-25 01:35:20,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1836 states. [2018-10-25 01:35:20,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2636 transitions. [2018-10-25 01:35:20,324 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2636 transitions. Word has length 147 [2018-10-25 01:35:20,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:35:20,325 INFO L481 AbstractCegarLoop]: Abstraction has 1836 states and 2636 transitions. [2018-10-25 01:35:20,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:35:20,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2636 transitions. [2018-10-25 01:35:20,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-10-25 01:35:20,332 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:35:20,332 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 01:35:20,332 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:35:20,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:20,333 INFO L82 PathProgramCache]: Analyzing trace with hash 639193526, now seen corresponding path program 1 times [2018-10-25 01:35:20,333 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:35:20,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:20,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:35:20,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:20,335 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:35:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:35:20,990 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-25 01:35:20,991 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:35:20,991 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:35:20,991 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 265 with the following transitions: [2018-10-25 01:35:20,991 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:35:20,999 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:35:21,000 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:35:22,071 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:35:22,072 INFO L272 AbstractInterpreter]: Visited 126 different actions 374 times. Merged at 7 different actions 20 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-10-25 01:35:22,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:22,080 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:35:22,080 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:35:22,080 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-25 01:35:22,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:35:22,091 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:35:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:35:22,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:35:22,817 WARN L179 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2018-10-25 01:35:23,139 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-25 01:35:23,139 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:35:24,034 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 11 [2018-10-25 01:35:24,664 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-10-25 01:35:24,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-25 01:35:24,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2018-10-25 01:35:24,699 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:35:24,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:35:24,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:35:24,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-25 01:35:24,701 INFO L87 Difference]: Start difference. First operand 1836 states and 2636 transitions. Second operand 6 states. [2018-10-25 01:35:29,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:35:29,012 INFO L93 Difference]: Finished difference Result 5773 states and 9013 transitions. [2018-10-25 01:35:29,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:35:29,019 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 264 [2018-10-25 01:35:29,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:35:29,048 INFO L225 Difference]: With dead ends: 5773 [2018-10-25 01:35:29,048 INFO L226 Difference]: Without dead ends: 4133 [2018-10-25 01:35:29,065 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 523 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-25 01:35:29,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4133 states. [2018-10-25 01:35:29,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4133 to 4133. [2018-10-25 01:35:29,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4133 states. [2018-10-25 01:35:29,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4133 states to 4133 states and 6246 transitions. [2018-10-25 01:35:29,188 INFO L78 Accepts]: Start accepts. Automaton has 4133 states and 6246 transitions. Word has length 264 [2018-10-25 01:35:29,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:35:29,189 INFO L481 AbstractCegarLoop]: Abstraction has 4133 states and 6246 transitions. [2018-10-25 01:35:29,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:35:29,189 INFO L276 IsEmpty]: Start isEmpty. Operand 4133 states and 6246 transitions. [2018-10-25 01:35:29,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-10-25 01:35:29,200 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:35:29,200 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 01:35:29,201 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:35:29,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:29,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1866650356, now seen corresponding path program 1 times [2018-10-25 01:35:29,201 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:35:29,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:29,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:35:29,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:29,203 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:35:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:35:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:35:29,498 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:35:29,498 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:35:29,498 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 288 with the following transitions: [2018-10-25 01:35:29,499 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [618], [621], [625], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:35:29,504 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:35:29,504 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:35:30,131 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:35:30,132 INFO L272 AbstractInterpreter]: Visited 141 different actions 409 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-25 01:35:30,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:30,169 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:35:30,169 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:35:30,169 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-25 01:35:30,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:35:30,179 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:35:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:35:30,291 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:35:30,461 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-10-25 01:35:30,461 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:35:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-10-25 01:35:30,766 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:35:30,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-10-25 01:35:30,767 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:35:30,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:35:30,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:35:30,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:35:30,768 INFO L87 Difference]: Start difference. First operand 4133 states and 6246 transitions. Second operand 3 states. [2018-10-25 01:35:34,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:35:34,516 INFO L93 Difference]: Finished difference Result 11265 states and 17956 transitions. [2018-10-25 01:35:34,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:35:34,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 287 [2018-10-25 01:35:34,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:35:34,567 INFO L225 Difference]: With dead ends: 11265 [2018-10-25 01:35:34,567 INFO L226 Difference]: Without dead ends: 7328 [2018-10-25 01:35:34,608 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:35:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7328 states. [2018-10-25 01:35:34,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7328 to 7320. [2018-10-25 01:35:34,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7320 states. [2018-10-25 01:35:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7320 states to 7320 states and 10427 transitions. [2018-10-25 01:35:34,808 INFO L78 Accepts]: Start accepts. Automaton has 7320 states and 10427 transitions. Word has length 287 [2018-10-25 01:35:34,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:35:34,808 INFO L481 AbstractCegarLoop]: Abstraction has 7320 states and 10427 transitions. [2018-10-25 01:35:34,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:35:34,808 INFO L276 IsEmpty]: Start isEmpty. Operand 7320 states and 10427 transitions. [2018-10-25 01:35:34,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-10-25 01:35:34,843 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:35:34,843 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 01:35:34,844 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:35:34,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:34,844 INFO L82 PathProgramCache]: Analyzing trace with hash 2118604793, now seen corresponding path program 1 times [2018-10-25 01:35:34,844 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:35:34,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:34,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:35:34,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:35:34,845 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:35:34,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:35:35,343 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-10-25 01:35:35,344 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:35:35,344 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:35:35,344 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 361 with the following transitions: [2018-10-25 01:35:35,345 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [870], [874], [878], [889], [893], [897], [901], [905], [909], [913], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [971], [975], [979], [983], [987], [991], [994], [999], [1001], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:35:35,351 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:35:35,351 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:35:36,405 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:35:36,405 INFO L272 AbstractInterpreter]: Visited 187 different actions 919 times. Merged at 7 different actions 31 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 28 variables. [2018-10-25 01:35:36,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:35:36,413 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:35:36,413 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:35:36,413 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-25 01:35:36,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:35:36,421 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:35:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:35:36,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:35:39,249 WARN L179 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2018-10-25 01:35:39,646 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 11 proven. 86 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-10-25 01:35:39,646 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:35:39,902 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-10-25 01:35:40,280 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:40,345 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:40,492 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:40,728 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:40,788 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:40,832 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:40,884 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:40,934 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:40,973 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,024 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,067 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,122 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,159 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,205 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,253 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,293 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,331 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,390 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,516 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,671 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,713 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,752 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,796 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,835 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,874 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:41,945 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,018 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,060 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,141 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,180 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,231 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,271 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,310 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,378 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,420 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,464 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:42,808 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,029 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,068 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,160 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,199 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,241 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,280 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,560 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,678 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,718 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,765 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,804 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,843 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,881 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,919 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:43,957 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,020 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,061 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,144 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,182 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,220 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,259 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,317 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,357 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,395 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,435 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,506 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,582 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,620 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,657 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,712 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,789 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,849 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,889 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,927 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:44,969 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,006 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,043 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,082 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,121 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,158 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,201 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,253 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,290 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,616 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,653 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,692 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,730 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,767 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,806 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,844 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,886 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,925 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:45,961 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,002 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,041 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,099 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,139 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,177 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,251 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,290 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,331 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,371 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,409 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,536 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,576 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,616 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,652 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,694 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,758 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,796 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,833 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:46,951 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:47,276 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:47,604 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:47,649 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:47,685 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:47,747 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:48,083 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:48,128 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:48,447 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:48,607 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:48,643 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:48,679 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:48,719 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:48,756 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,084 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,308 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,343 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,387 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,424 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,465 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,581 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,641 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,677 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,713 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,752 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,790 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,827 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,873 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,911 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,951 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:49,986 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,022 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,060 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,098 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,152 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,187 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,223 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,270 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,306 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,362 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,411 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,470 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,525 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,570 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,612 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,655 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,700 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,759 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,804 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,841 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,877 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,923 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:50,984 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:51,022 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:51,058 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:51,094 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:51,130 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:51,168 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-25 01:35:54,733 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 93 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:35:54,752 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:35:54,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 22 [2018-10-25 01:35:54,753 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:35:54,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-25 01:35:54,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-25 01:35:54,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=333, Unknown=1, NotChecked=0, Total=462 [2018-10-25 01:35:54,755 INFO L87 Difference]: Start difference. First operand 7320 states and 10427 transitions. Second operand 16 states. [2018-10-25 01:35:58,825 WARN L179 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 35 [2018-10-25 01:36:15,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:36:15,867 INFO L93 Difference]: Finished difference Result 32555 states and 58461 transitions. [2018-10-25 01:36:15,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-10-25 01:36:15,869 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 360 [2018-10-25 01:36:15,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:36:16,192 INFO L225 Difference]: With dead ends: 32555 [2018-10-25 01:36:16,193 INFO L226 Difference]: Without dead ends: 25431 [2018-10-25 01:36:16,320 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 764 GetRequests, 544 SyntacticMatches, 168 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2399 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=743, Invalid=2118, Unknown=1, NotChecked=0, Total=2862 [2018-10-25 01:36:16,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25431 states. [2018-10-25 01:36:17,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25431 to 24538. [2018-10-25 01:36:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24538 states. [2018-10-25 01:36:17,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24538 states to 24538 states and 35231 transitions. [2018-10-25 01:36:17,478 INFO L78 Accepts]: Start accepts. Automaton has 24538 states and 35231 transitions. Word has length 360 [2018-10-25 01:36:17,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:36:17,479 INFO L481 AbstractCegarLoop]: Abstraction has 24538 states and 35231 transitions. [2018-10-25 01:36:17,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-25 01:36:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 24538 states and 35231 transitions. [2018-10-25 01:36:17,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2018-10-25 01:36:17,597 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:36:17,598 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:36:17,598 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:36:17,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:36:17,598 INFO L82 PathProgramCache]: Analyzing trace with hash 10779233, now seen corresponding path program 1 times [2018-10-25 01:36:17,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:36:17,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:36:17,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:36:17,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:36:17,600 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:36:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:36:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-25 01:36:18,321 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:36:18,321 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:36:18,321 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 399 with the following transitions: [2018-10-25 01:36:18,322 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [538], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [854], [859], [861], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:36:18,327 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:36:18,327 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:36:19,828 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:36:19,828 INFO L272 AbstractInterpreter]: Visited 156 different actions 617 times. Merged at 7 different actions 28 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 28 variables. [2018-10-25 01:36:19,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:36:19,838 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:36:19,838 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:36:19,838 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:36:19,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:36:19,850 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:36:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:36:19,974 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:36:20,085 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-25 01:36:20,085 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:36:20,392 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-25 01:36:20,413 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:36:20,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-10-25 01:36:20,414 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:36:20,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-25 01:36:20,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-25 01:36:20,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-25 01:36:20,415 INFO L87 Difference]: Start difference. First operand 24538 states and 35231 transitions. Second operand 7 states. [2018-10-25 01:36:23,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:36:23,874 INFO L93 Difference]: Finished difference Result 63908 states and 99101 transitions. [2018-10-25 01:36:23,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-25 01:36:23,874 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 398 [2018-10-25 01:36:23,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:36:24,081 INFO L225 Difference]: With dead ends: 63908 [2018-10-25 01:36:24,081 INFO L226 Difference]: Without dead ends: 39566 [2018-10-25 01:36:24,237 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 797 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-10-25 01:36:24,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39566 states. [2018-10-25 01:36:25,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39566 to 39025. [2018-10-25 01:36:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39025 states. [2018-10-25 01:36:25,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39025 states to 39025 states and 56209 transitions. [2018-10-25 01:36:25,426 INFO L78 Accepts]: Start accepts. Automaton has 39025 states and 56209 transitions. Word has length 398 [2018-10-25 01:36:25,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:36:25,426 INFO L481 AbstractCegarLoop]: Abstraction has 39025 states and 56209 transitions. [2018-10-25 01:36:25,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-25 01:36:25,427 INFO L276 IsEmpty]: Start isEmpty. Operand 39025 states and 56209 transitions. [2018-10-25 01:36:25,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-10-25 01:36:25,586 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:36:25,586 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:36:25,587 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:36:25,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:36:25,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1320224044, now seen corresponding path program 1 times [2018-10-25 01:36:25,587 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:36:25,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:36:25,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:36:25,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:36:25,588 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:36:25,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:36:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 360 proven. 99 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-25 01:36:26,475 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:36:26,476 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:36:26,476 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 430 with the following transitions: [2018-10-25 01:36:26,476 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [629], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [854], [859], [861], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:36:26,480 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:36:26,480 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:36:27,863 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:36:27,863 INFO L272 AbstractInterpreter]: Visited 156 different actions 464 times. Merged at 7 different actions 20 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-10-25 01:36:27,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:36:27,868 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:36:27,868 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:36:27,868 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:36:27,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:36:27,876 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:36:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:36:28,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:36:28,114 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-25 01:36:28,115 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:36:28,340 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-25 01:36:28,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:36:28,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 7 [2018-10-25 01:36:28,362 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:36:28,363 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:36:28,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:36:28,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:36:28,363 INFO L87 Difference]: Start difference. First operand 39025 states and 56209 transitions. Second operand 6 states. [2018-10-25 01:36:30,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:36:30,707 INFO L93 Difference]: Finished difference Result 83691 states and 128630 transitions. [2018-10-25 01:36:30,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:36:30,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 429 [2018-10-25 01:36:30,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:36:30,924 INFO L225 Difference]: With dead ends: 83691 [2018-10-25 01:36:30,924 INFO L226 Difference]: Without dead ends: 44862 [2018-10-25 01:36:31,091 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 859 SyntacticMatches, 4 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-10-25 01:36:31,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44862 states. [2018-10-25 01:36:32,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44862 to 43535. [2018-10-25 01:36:32,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43535 states. [2018-10-25 01:36:32,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43535 states to 43535 states and 57993 transitions. [2018-10-25 01:36:32,785 INFO L78 Accepts]: Start accepts. Automaton has 43535 states and 57993 transitions. Word has length 429 [2018-10-25 01:36:32,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:36:32,786 INFO L481 AbstractCegarLoop]: Abstraction has 43535 states and 57993 transitions. [2018-10-25 01:36:32,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:36:32,788 INFO L276 IsEmpty]: Start isEmpty. Operand 43535 states and 57993 transitions. [2018-10-25 01:36:32,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2018-10-25 01:36:32,943 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:36:32,944 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:36:32,944 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:36:32,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:36:32,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1633679686, now seen corresponding path program 1 times [2018-10-25 01:36:32,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:36:32,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:36:32,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:36:32,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:36:32,946 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:36:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:36:33,750 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 141 proven. 234 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-10-25 01:36:33,750 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:36:33,750 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:36:33,751 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 441 with the following transitions: [2018-10-25 01:36:33,751 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [653], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [854], [859], [861], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:36:33,754 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:36:33,755 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:36:35,250 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:36:35,251 INFO L272 AbstractInterpreter]: Visited 160 different actions 637 times. Merged at 8 different actions 35 times. Widened at 1 different actions 3 times. Found 6 fixpoints after 4 different actions. Largest state had 28 variables. [2018-10-25 01:36:35,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:36:35,260 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:36:35,260 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:36:35,260 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:36:35,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:36:35,268 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:36:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:36:35,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:36:36,005 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_~a29~0_581 Int)) (let ((.cse0 (mod v_~a29~0_581 15))) (and (= .cse0 0) (<= c_~a29~0 (+ .cse0 260)) (<= |c_old(~a29~0)| v_~a29~0_581)))) (exists ((v_prenex_345 Int)) (and (<= 0 v_prenex_345) (<= |c_old(~a29~0)| v_prenex_345) (<= c_~a29~0 (+ (mod v_prenex_345 15) 260)))) (exists ((v_prenex_344 Int)) (let ((.cse1 (mod v_prenex_344 15))) (and (<= c_~a29~0 (+ .cse1 245)) (not (= .cse1 0)) (<= |c_old(~a29~0)| v_prenex_344) (< v_prenex_344 0))))) is different from true [2018-10-25 01:36:36,271 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 328 proven. 105 refuted. 0 times theorem prover too weak. 46 trivial. 2 not checked. [2018-10-25 01:36:36,271 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:36:37,572 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 374 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:36:37,592 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:36:37,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 16 [2018-10-25 01:36:37,593 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:36:37,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-25 01:36:37,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-25 01:36:37,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=159, Unknown=1, NotChecked=26, Total=240 [2018-10-25 01:36:37,594 INFO L87 Difference]: Start difference. First operand 43535 states and 57993 transitions. Second operand 11 states. [2018-10-25 01:36:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:36:48,946 INFO L93 Difference]: Finished difference Result 107671 states and 151154 transitions. [2018-10-25 01:36:48,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-25 01:36:48,946 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 440 [2018-10-25 01:36:48,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:36:49,284 INFO L225 Difference]: With dead ends: 107671 [2018-10-25 01:36:49,285 INFO L226 Difference]: Without dead ends: 64331 [2018-10-25 01:36:49,479 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 918 GetRequests, 884 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=225, Invalid=644, Unknown=5, NotChecked=56, Total=930 [2018-10-25 01:36:49,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64331 states. [2018-10-25 01:36:51,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64331 to 61480. [2018-10-25 01:36:51,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61480 states. [2018-10-25 01:36:52,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61480 states to 61480 states and 82204 transitions. [2018-10-25 01:36:52,162 INFO L78 Accepts]: Start accepts. Automaton has 61480 states and 82204 transitions. Word has length 440 [2018-10-25 01:36:52,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:36:52,163 INFO L481 AbstractCegarLoop]: Abstraction has 61480 states and 82204 transitions. [2018-10-25 01:36:52,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-25 01:36:52,163 INFO L276 IsEmpty]: Start isEmpty. Operand 61480 states and 82204 transitions. [2018-10-25 01:36:52,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2018-10-25 01:36:52,322 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:36:52,323 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:36:52,323 INFO L424 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:36:52,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:36:52,324 INFO L82 PathProgramCache]: Analyzing trace with hash 825658629, now seen corresponding path program 1 times [2018-10-25 01:36:52,324 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:36:52,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:36:52,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:36:52,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:36:52,325 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:36:52,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:36:53,530 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 255 proven. 94 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-25 01:36:53,530 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:36:53,530 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:36:53,530 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 442 with the following transitions: [2018-10-25 01:36:53,531 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [870], [874], [878], [889], [893], [897], [901], [905], [909], [913], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [971], [975], [979], [983], [987], [991], [1002], [1005], [1008], [1012], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:36:53,535 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:36:53,535 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:36:55,982 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:36:55,983 INFO L272 AbstractInterpreter]: Visited 187 different actions 749 times. Merged at 8 different actions 38 times. Widened at 1 different actions 2 times. Found 7 fixpoints after 5 different actions. Largest state had 28 variables. [2018-10-25 01:36:55,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:36:55,988 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:36:55,988 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:36:55,988 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:36:55,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:36:55,999 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:36:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:36:56,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:36:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 394 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-10-25 01:36:56,768 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:36:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 255 proven. 94 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-25 01:36:58,199 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:36:58,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 8] total 22 [2018-10-25 01:36:58,199 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:36:58,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-25 01:36:58,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-25 01:36:58,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2018-10-25 01:36:58,201 INFO L87 Difference]: Start difference. First operand 61480 states and 82204 transitions. Second operand 17 states. [2018-10-25 01:36:59,562 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2018-10-25 01:37:00,788 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2018-10-25 01:37:01,807 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2018-10-25 01:37:06,195 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2018-10-25 01:37:07,800 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-10-25 01:37:10,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:37:10,486 INFO L93 Difference]: Finished difference Result 134475 states and 188397 transitions. [2018-10-25 01:37:10,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-10-25 01:37:10,487 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 441 [2018-10-25 01:37:10,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:37:10,720 INFO L225 Difference]: With dead ends: 134475 [2018-10-25 01:37:10,720 INFO L226 Difference]: Without dead ends: 73190 [2018-10-25 01:37:10,962 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 979 GetRequests, 912 SyntacticMatches, 2 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1101 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1091, Invalid=3331, Unknown=0, NotChecked=0, Total=4422 [2018-10-25 01:37:11,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73190 states. [2018-10-25 01:37:12,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73190 to 72318. [2018-10-25 01:37:12,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72318 states. [2018-10-25 01:37:12,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72318 states to 72318 states and 94855 transitions. [2018-10-25 01:37:12,458 INFO L78 Accepts]: Start accepts. Automaton has 72318 states and 94855 transitions. Word has length 441 [2018-10-25 01:37:12,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:37:12,459 INFO L481 AbstractCegarLoop]: Abstraction has 72318 states and 94855 transitions. [2018-10-25 01:37:12,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-25 01:37:12,459 INFO L276 IsEmpty]: Start isEmpty. Operand 72318 states and 94855 transitions. [2018-10-25 01:37:12,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2018-10-25 01:37:12,642 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:37:12,642 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:37:12,642 INFO L424 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:37:12,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:37:12,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1575379774, now seen corresponding path program 1 times [2018-10-25 01:37:12,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:37:12,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:37:12,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:37:12,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:37:12,644 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:37:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:37:14,025 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 145 proven. 320 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-25 01:37:14,025 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:37:14,026 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:37:14,026 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 473 with the following transitions: [2018-10-25 01:37:14,026 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [869], [870], [874], [878], [889], [893], [897], [901], [905], [909], [913], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [971], [975], [979], [983], [987], [991], [1002], [1005], [1008], [1012], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:37:14,030 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:37:14,030 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:37:16,560 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:37:16,560 INFO L272 AbstractInterpreter]: Visited 187 different actions 749 times. Merged at 8 different actions 38 times. Widened at 1 different actions 2 times. Found 7 fixpoints after 5 different actions. Largest state had 28 variables. [2018-10-25 01:37:16,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:37:16,568 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:37:16,568 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:37:16,568 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:37:16,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:37:16,577 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:37:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:37:16,719 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:37:17,200 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 326 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-10-25 01:37:17,200 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:37:17,444 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2018-10-25 01:37:18,461 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 326 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-10-25 01:37:18,483 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:37:18,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2018-10-25 01:37:18,484 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:37:18,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-25 01:37:18,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-25 01:37:18,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-10-25 01:37:18,485 INFO L87 Difference]: Start difference. First operand 72318 states and 94855 transitions. Second operand 12 states. [2018-10-25 01:37:21,025 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-25 01:37:33,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:37:33,409 INFO L93 Difference]: Finished difference Result 167288 states and 225157 transitions. [2018-10-25 01:37:33,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-10-25 01:37:33,416 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 472 [2018-10-25 01:37:33,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:37:33,787 INFO L225 Difference]: With dead ends: 167288 [2018-10-25 01:37:33,788 INFO L226 Difference]: Without dead ends: 95165 [2018-10-25 01:37:34,023 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1044 GetRequests, 983 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1145 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=622, Invalid=3160, Unknown=0, NotChecked=0, Total=3782 [2018-10-25 01:37:34,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95165 states. [2018-10-25 01:37:35,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95165 to 91680. [2018-10-25 01:37:35,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91680 states. [2018-10-25 01:37:36,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91680 states to 91680 states and 122427 transitions. [2018-10-25 01:37:36,508 INFO L78 Accepts]: Start accepts. Automaton has 91680 states and 122427 transitions. Word has length 472 [2018-10-25 01:37:36,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:37:36,509 INFO L481 AbstractCegarLoop]: Abstraction has 91680 states and 122427 transitions. [2018-10-25 01:37:36,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-25 01:37:36,509 INFO L276 IsEmpty]: Start isEmpty. Operand 91680 states and 122427 transitions. [2018-10-25 01:37:37,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2018-10-25 01:37:37,122 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:37:37,123 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-25 01:37:37,123 INFO L424 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:37:37,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:37:37,124 INFO L82 PathProgramCache]: Analyzing trace with hash -222774532, now seen corresponding path program 1 times [2018-10-25 01:37:37,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:37:37,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:37:37,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:37:37,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:37:37,127 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:37:37,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:37:37,854 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-25 01:37:38,353 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-25 01:37:39,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1242 backedges. 702 proven. 174 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2018-10-25 01:37:39,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:37:39,349 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:37:39,349 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 630 with the following transitions: [2018-10-25 01:37:39,349 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [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], [317], [319], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [574], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [726], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [816], [819], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:37:39,352 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:37:39,353 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:37:47,261 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:37:47,262 INFO L272 AbstractInterpreter]: Visited 153 different actions 794 times. Merged at 10 different actions 74 times. Widened at 1 different actions 8 times. Found 17 fixpoints after 4 different actions. Largest state had 28 variables. [2018-10-25 01:37:47,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:37:47,269 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:37:47,269 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:37:47,269 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:37:47,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:37:47,279 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:37:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:37:47,460 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:37:48,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1242 backedges. 828 proven. 2 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2018-10-25 01:37:48,635 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:37:49,192 INFO L134 CoverageAnalysis]: Checked inductivity of 1242 backedges. 514 proven. 89 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2018-10-25 01:37:49,213 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:37:49,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 5, 5] total 22 [2018-10-25 01:37:49,214 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:37:49,214 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-25 01:37:49,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-25 01:37:49,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=382, Unknown=0, NotChecked=0, Total=462 [2018-10-25 01:37:49,216 INFO L87 Difference]: Start difference. First operand 91680 states and 122427 transitions. Second operand 21 states. Received shutdown request... [2018-10-25 01:37:50,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-25 01:37:50,363 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 01:37:50,368 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 01:37:50,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 01:37:50 BoogieIcfgContainer [2018-10-25 01:37:50,368 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 01:37:50,369 INFO L168 Benchmark]: Toolchain (without parser) took 210151.42 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-25 01:37:50,370 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:37:50,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1094.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-25 01:37:50,371 INFO L168 Benchmark]: Boogie Procedure Inliner took 298.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -818.8 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-25 01:37:50,372 INFO L168 Benchmark]: Boogie Preprocessor took 151.78 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:37:50,373 INFO L168 Benchmark]: RCFGBuilder took 4407.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.0 MB). Peak memory consumption was 187.0 MB. Max. memory is 7.1 GB. [2018-10-25 01:37:50,374 INFO L168 Benchmark]: TraceAbstraction took 204193.36 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -529.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-25 01:37:50,379 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1094.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 298.05 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 735.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -818.8 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.78 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4407.41 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 187.0 MB). Peak memory consumption was 187.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204193.36 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -529.3 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while BasicCegarLoop was constructing difference of abstraction (91680states) and FLOYD_HOARE automaton (currently 11 states, 21 states before enhancement),while ReachableStatesComputation was computing reachable states (379 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 204.1s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 127.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2427 SDtfs, 20566 SDslu, 4138 SDs, 0 SdLazy, 38121 SolverSat, 8704 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.8s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 7961 GetRequests, 7485 SyntacticMatches, 193 SemanticMatches, 283 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5013 ImplicationChecksByTransitivity, 36.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91680occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 21.0s AbstIntTime, 10 AbstIntIterations, 1 AbstIntStrong, 0.9978284158763612 AbsIntWeakeningRatio, 0.1506849315068493 AbsIntAvgWeakeningVarsNumRemoved, 18.335616438356166 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 10393 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 37.0s InterpolantComputationTime, 7890 NumberOfCodeBlocks, 7890 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 11579 ConstructedInterpolants, 430 QuantifiedInterpolants, 31782322 SizeOfPredicates, 21 NumberOfNonLiveVariables, 5922 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 31 InterpolantComputations, 6 PerfectInterpolantSequences, 10598/12477 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown