java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:39:39,352 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:39:39,355 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:39:39,369 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:39:39,370 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:39:39,371 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:39:39,372 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:39:39,374 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:39:39,376 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:39:39,377 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:39:39,378 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:39:39,378 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:39:39,379 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:39:39,381 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:39:39,383 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:39:39,385 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:39:39,385 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:39:39,388 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:39:39,395 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:39:39,400 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:39:39,402 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:39:39,406 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:39:39,411 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:39:39,412 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:39:39,412 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:39:39,413 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:39:39,417 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:39:39,417 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:39:39,418 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:39:39,422 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:39:39,422 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:39:39,423 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 09:39:39,423 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 09:39:39,423 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 09:39:39,426 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 09:39:39,427 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 09:39:39,428 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:39:39,458 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:39:39,458 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:39:39,459 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:39:39,459 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:39:39,460 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:39:39,460 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:39:39,460 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:39:39,460 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:39:39,460 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:39:39,461 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:39:39,462 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:39:39,462 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:39:39,462 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:39:39,462 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:39:39,463 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:39:39,463 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:39:39,463 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:39:39,464 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:39:39,464 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:39:39,464 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:39:39,464 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:39:39,464 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:39:39,465 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:39:39,465 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:39:39,465 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:39:39,465 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:39:39,465 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:39:39,466 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:39:39,467 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:39:39,467 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:39:39,468 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:39:39,468 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:39:39,468 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:39:39,468 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:39:39,468 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:39:39,469 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:39:39,521 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:39:39,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:39:39,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:39:39,545 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:39:39,546 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:39:39,546 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label44_true-unreach-call.c [2018-11-07 09:39:39,607 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2286f80e1/4ab6527aa26148b69acab478831f0636/FLAGf70851ffb [2018-11-07 09:39:40,306 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:39:40,307 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label44_true-unreach-call.c [2018-11-07 09:39:40,330 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2286f80e1/4ab6527aa26148b69acab478831f0636/FLAGf70851ffb [2018-11-07 09:39:40,346 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2286f80e1/4ab6527aa26148b69acab478831f0636 [2018-11-07 09:39:40,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:39:40,359 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:39:40,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:39:40,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:39:40,364 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:39:40,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:39:40" (1/1) ... [2018-11-07 09:39:40,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa608e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:40, skipping insertion in model container [2018-11-07 09:39:40,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:39:40" (1/1) ... [2018-11-07 09:39:40,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:39:40,517 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:39:41,747 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:39:41,752 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:39:42,193 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:39:42,223 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:39:42,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42 WrapperNode [2018-11-07 09:39:42,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:39:42,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:39:42,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:39:42,226 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:39:42,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (1/1) ... [2018-11-07 09:39:42,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (1/1) ... [2018-11-07 09:39:42,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:39:42,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:39:42,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:39:42,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:39:42,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (1/1) ... [2018-11-07 09:39:42,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (1/1) ... [2018-11-07 09:39:42,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (1/1) ... [2018-11-07 09:39:42,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (1/1) ... [2018-11-07 09:39:42,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (1/1) ... [2018-11-07 09:39:42,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (1/1) ... [2018-11-07 09:39:42,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (1/1) ... [2018-11-07 09:39:42,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:39:42,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:39:42,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:39:42,776 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:39:42,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:39:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:39:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:39:42,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:39:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 09:39:42,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 09:39:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:39:42,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:39:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:39:42,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:39:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:39:42,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:39:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:39:42,855 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:39:50,455 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:39:50,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:39:50 BoogieIcfgContainer [2018-11-07 09:39:50,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:39:50,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:39:50,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:39:50,460 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:39:50,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:39:40" (1/3) ... [2018-11-07 09:39:50,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638ec700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:39:50, skipping insertion in model container [2018-11-07 09:39:50,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:39:42" (2/3) ... [2018-11-07 09:39:50,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638ec700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:39:50, skipping insertion in model container [2018-11-07 09:39:50,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:39:50" (3/3) ... [2018-11-07 09:39:50,464 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label44_true-unreach-call.c [2018-11-07 09:39:50,475 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:39:50,485 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:39:50,504 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:39:50,550 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:39:50,551 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:39:50,551 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:39:50,551 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:39:50,551 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:39:50,551 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:39:50,551 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:39:50,552 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:39:50,611 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 09:39:50,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-07 09:39:50,620 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:39:50,621 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] [2018-11-07 09:39:50,624 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:39:50,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:39:50,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1357695353, now seen corresponding path program 1 times [2018-11-07 09:39:50,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:39:50,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:39:50,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:39:50,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:39:50,683 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:39:50,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:39:51,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:39:51,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:39:51,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 09:39:51,145 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:39:51,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:39:51,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:39:51,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:39:51,174 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-11-07 09:40:01,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:40:01,789 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-11-07 09:40:01,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:40:01,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-11-07 09:40:01,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:40:01,833 INFO L225 Difference]: With dead ends: 2974 [2018-11-07 09:40:01,834 INFO L226 Difference]: Without dead ends: 2193 [2018-11-07 09:40:01,845 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:40:01,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-11-07 09:40:02,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 1474. [2018-11-07 09:40:02,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-07 09:40:02,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2384 transitions. [2018-11-07 09:40:02,035 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2384 transitions. Word has length 39 [2018-11-07 09:40:02,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:40:02,036 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2384 transitions. [2018-11-07 09:40:02,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 09:40:02,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2384 transitions. [2018-11-07 09:40:02,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-07 09:40:02,047 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:40:02,047 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:40:02,047 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:40:02,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:40:02,048 INFO L82 PathProgramCache]: Analyzing trace with hash -947150568, now seen corresponding path program 1 times [2018-11-07 09:40:02,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:40:02,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:02,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:40:02,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:02,050 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:40:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:40:02,348 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:40:02,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:40:02,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 09:40:02,349 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:40:02,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 09:40:02,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 09:40:02,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 09:40:02,352 INFO L87 Difference]: Start difference. First operand 1474 states and 2384 transitions. Second operand 5 states. [2018-11-07 09:40:11,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:40:11,793 INFO L93 Difference]: Finished difference Result 4422 states and 7235 transitions. [2018-11-07 09:40:11,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:40:11,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2018-11-07 09:40:11,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:40:11,818 INFO L225 Difference]: With dead ends: 4422 [2018-11-07 09:40:11,819 INFO L226 Difference]: Without dead ends: 2954 [2018-11-07 09:40:11,825 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 09:40:11,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2018-11-07 09:40:11,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2930. [2018-11-07 09:40:11,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2930 states. [2018-11-07 09:40:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2930 states to 2930 states and 4516 transitions. [2018-11-07 09:40:11,922 INFO L78 Accepts]: Start accepts. Automaton has 2930 states and 4516 transitions. Word has length 109 [2018-11-07 09:40:11,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:40:11,923 INFO L480 AbstractCegarLoop]: Abstraction has 2930 states and 4516 transitions. [2018-11-07 09:40:11,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 09:40:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2930 states and 4516 transitions. [2018-11-07 09:40:11,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-11-07 09:40:11,927 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:40:11,927 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:40:11,927 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:40:11,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:40:11,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1923837536, now seen corresponding path program 1 times [2018-11-07 09:40:11,928 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:40:11,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:11,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:40:11,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:11,929 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:40:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:40:12,403 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:40:12,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:40:12,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:40:12,404 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:40:12,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:40:12,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:40:12,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:40:12,408 INFO L87 Difference]: Start difference. First operand 2930 states and 4516 transitions. Second operand 6 states. [2018-11-07 09:40:20,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:40:20,387 INFO L93 Difference]: Finished difference Result 10279 states and 16084 transitions. [2018-11-07 09:40:20,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:40:20,392 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2018-11-07 09:40:20,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:40:20,449 INFO L225 Difference]: With dead ends: 10279 [2018-11-07 09:40:20,449 INFO L226 Difference]: Without dead ends: 7355 [2018-11-07 09:40:20,471 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:40:20,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7355 states. [2018-11-07 09:40:20,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7355 to 7296. [2018-11-07 09:40:20,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7296 states. [2018-11-07 09:40:20,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7296 states to 7296 states and 10495 transitions. [2018-11-07 09:40:20,748 INFO L78 Accepts]: Start accepts. Automaton has 7296 states and 10495 transitions. Word has length 113 [2018-11-07 09:40:20,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:40:20,749 INFO L480 AbstractCegarLoop]: Abstraction has 7296 states and 10495 transitions. [2018-11-07 09:40:20,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:40:20,749 INFO L276 IsEmpty]: Start isEmpty. Operand 7296 states and 10495 transitions. [2018-11-07 09:40:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-11-07 09:40:20,752 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:40:20,753 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:40:20,753 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:40:20,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:40:20,753 INFO L82 PathProgramCache]: Analyzing trace with hash 397539053, now seen corresponding path program 1 times [2018-11-07 09:40:20,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:40:20,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:20,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:40:20,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:20,755 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:40:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:40:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:40:21,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:40:21,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:40:21,001 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:40:21,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:40:21,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:40:21,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:40:21,002 INFO L87 Difference]: Start difference. First operand 7296 states and 10495 transitions. Second operand 6 states. [2018-11-07 09:40:28,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:40:28,347 INFO L93 Difference]: Finished difference Result 18993 states and 28013 transitions. [2018-11-07 09:40:28,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:40:28,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-11-07 09:40:28,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:40:28,423 INFO L225 Difference]: With dead ends: 18993 [2018-11-07 09:40:28,423 INFO L226 Difference]: Without dead ends: 11703 [2018-11-07 09:40:28,589 INFO L604 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 [2018-11-07 09:40:28,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11703 states. [2018-11-07 09:40:28,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11703 to 11639. [2018-11-07 09:40:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11639 states. [2018-11-07 09:40:28,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11639 states to 11639 states and 16002 transitions. [2018-11-07 09:40:28,860 INFO L78 Accepts]: Start accepts. Automaton has 11639 states and 16002 transitions. Word has length 134 [2018-11-07 09:40:28,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:40:28,861 INFO L480 AbstractCegarLoop]: Abstraction has 11639 states and 16002 transitions. [2018-11-07 09:40:28,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:40:28,861 INFO L276 IsEmpty]: Start isEmpty. Operand 11639 states and 16002 transitions. [2018-11-07 09:40:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-11-07 09:40:28,864 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:40:28,865 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:40:28,865 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:40:28,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:40:28,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1776632544, now seen corresponding path program 1 times [2018-11-07 09:40:28,866 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:40:28,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:28,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:40:28,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:28,867 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:40:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:40:29,186 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:40:29,564 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:40:29,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:40:29,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:40:29,565 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:40:29,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:40:29,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:40:29,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:40:29,566 INFO L87 Difference]: Start difference. First operand 11639 states and 16002 transitions. Second operand 6 states. [2018-11-07 09:40:35,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:40:35,164 INFO L93 Difference]: Finished difference Result 27658 states and 38922 transitions. [2018-11-07 09:40:35,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:40:35,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2018-11-07 09:40:35,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:40:35,231 INFO L225 Difference]: With dead ends: 27658 [2018-11-07 09:40:35,231 INFO L226 Difference]: Without dead ends: 16025 [2018-11-07 09:40:35,273 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:40:35,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16025 states. [2018-11-07 09:40:35,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16025 to 15947. [2018-11-07 09:40:35,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15947 states. [2018-11-07 09:40:35,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15947 states to 15947 states and 19810 transitions. [2018-11-07 09:40:35,615 INFO L78 Accepts]: Start accepts. Automaton has 15947 states and 19810 transitions. Word has length 177 [2018-11-07 09:40:35,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:40:35,616 INFO L480 AbstractCegarLoop]: Abstraction has 15947 states and 19810 transitions. [2018-11-07 09:40:35,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:40:35,616 INFO L276 IsEmpty]: Start isEmpty. Operand 15947 states and 19810 transitions. [2018-11-07 09:40:35,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2018-11-07 09:40:35,622 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:40:35,622 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:40:35,622 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:40:35,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:40:35,623 INFO L82 PathProgramCache]: Analyzing trace with hash 952767299, now seen corresponding path program 1 times [2018-11-07 09:40:35,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:40:35,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:35,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:40:35,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:35,624 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:40:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:40:36,059 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-11-07 09:40:36,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:40:36,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 09:40:36,062 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:40:36,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:40:36,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:40:36,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:40:36,065 INFO L87 Difference]: Start difference. First operand 15947 states and 19810 transitions. Second operand 4 states. [2018-11-07 09:40:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:40:43,996 INFO L93 Difference]: Finished difference Result 60752 states and 78092 transitions. [2018-11-07 09:40:43,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:40:43,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 235 [2018-11-07 09:40:43,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:40:44,187 INFO L225 Difference]: With dead ends: 60752 [2018-11-07 09:40:44,187 INFO L226 Difference]: Without dead ends: 44811 [2018-11-07 09:40:44,264 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:40:44,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44811 states. [2018-11-07 09:40:45,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44811 to 44811. [2018-11-07 09:40:45,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44811 states. [2018-11-07 09:40:45,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44811 states to 44811 states and 55159 transitions. [2018-11-07 09:40:45,721 INFO L78 Accepts]: Start accepts. Automaton has 44811 states and 55159 transitions. Word has length 235 [2018-11-07 09:40:45,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:40:45,722 INFO L480 AbstractCegarLoop]: Abstraction has 44811 states and 55159 transitions. [2018-11-07 09:40:45,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 09:40:45,723 INFO L276 IsEmpty]: Start isEmpty. Operand 44811 states and 55159 transitions. [2018-11-07 09:40:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-11-07 09:40:45,761 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:40:45,762 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:40:45,762 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:40:45,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:40:45,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1249259458, now seen corresponding path program 1 times [2018-11-07 09:40:45,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:40:45,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:45,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:40:45,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:40:45,770 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:40:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:40:46,144 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 09:40:46,871 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 59 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:40:46,872 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:40:46,872 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:40:46,873 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 301 with the following transitions: [2018-11-07 09:40:46,880 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1835], [1837], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2328], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 09:40:46,961 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:40:46,961 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:40:47,577 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:40:47,580 INFO L272 AbstractInterpreter]: Visited 143 different actions 143 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 09:40:47,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:40:47,599 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:40:48,185 INFO L227 lantSequenceWeakener]: Weakened 291 states. On average, predicates are now at 77.63% of their original sizes. [2018-11-07 09:40:48,186 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:40:48,253 INFO L415 sIntCurrentIteration]: We unified 299 AI predicates to 299 [2018-11-07 09:40:48,254 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:40:48,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:40:48,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2018-11-07 09:40:48,255 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:40:48,256 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:40:48,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:40:48,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:40:48,256 INFO L87 Difference]: Start difference. First operand 44811 states and 55159 transitions. Second operand 6 states. [2018-11-07 09:42:54,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:42:54,527 INFO L93 Difference]: Finished difference Result 90321 states and 111081 transitions. [2018-11-07 09:42:54,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:42:54,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 300 [2018-11-07 09:42:54,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:42:54,659 INFO L225 Difference]: With dead ends: 90321 [2018-11-07 09:42:54,659 INFO L226 Difference]: Without dead ends: 45516 [2018-11-07 09:42:54,769 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 300 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 09:42:54,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45516 states. [2018-11-07 09:42:55,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45516 to 45514. [2018-11-07 09:42:55,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45514 states. [2018-11-07 09:42:55,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45514 states to 45514 states and 55874 transitions. [2018-11-07 09:42:55,532 INFO L78 Accepts]: Start accepts. Automaton has 45514 states and 55874 transitions. Word has length 300 [2018-11-07 09:42:55,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:42:55,533 INFO L480 AbstractCegarLoop]: Abstraction has 45514 states and 55874 transitions. [2018-11-07 09:42:55,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:42:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 45514 states and 55874 transitions. [2018-11-07 09:42:55,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2018-11-07 09:42:55,566 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:42:55,567 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:42:55,567 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:42:55,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:42:55,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1208177568, now seen corresponding path program 1 times [2018-11-07 09:42:55,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:42:55,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:42:55,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:42:55,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:42:55,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:42:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:42:56,495 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 155 proven. 320 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 09:42:56,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:42:56,495 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:42:56,496 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 488 with the following transitions: [2018-11-07 09:42:56,496 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1835], [1837], [1840], [1848], [1856], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2328], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2388], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 09:42:56,504 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:42:56,504 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:42:56,750 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:42:56,751 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 09:42:56,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:42:56,796 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:42:57,286 INFO L227 lantSequenceWeakener]: Weakened 484 states. On average, predicates are now at 77.54% of their original sizes. [2018-11-07 09:42:57,286 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:42:57,406 INFO L415 sIntCurrentIteration]: We unified 486 AI predicates to 486 [2018-11-07 09:42:57,406 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:42:57,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:42:57,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2018-11-07 09:42:57,407 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:42:57,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 09:42:57,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 09:42:57,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 09:42:57,409 INFO L87 Difference]: Start difference. First operand 45514 states and 55874 transitions. Second operand 10 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown