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/Problem19_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 02:12:42,331 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 02:12:42,333 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 02:12:42,346 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 02:12:42,346 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 02:12:42,347 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 02:12:42,349 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 02:12:42,351 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 02:12:42,352 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 02:12:42,353 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 02:12:42,354 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 02:12:42,354 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 02:12:42,355 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 02:12:42,356 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 02:12:42,357 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 02:12:42,358 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 02:12:42,359 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 02:12:42,361 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 02:12:42,363 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 02:12:42,365 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 02:12:42,366 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 02:12:42,367 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 02:12:42,370 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 02:12:42,370 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 02:12:42,370 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 02:12:42,371 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 02:12:42,372 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 02:12:42,373 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 02:12:42,374 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 02:12:42,375 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 02:12:42,375 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 02:12:42,376 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-25 02:12:42,378 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 02:12:42,403 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 02:12:42,403 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 02:12:42,404 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 02:12:42,405 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 02:12:42,408 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 02:12:42,408 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 02:12:42,408 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 02:12:42,408 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 02:12:42,408 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 02:12:42,409 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 02:12:42,409 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 02:12:42,409 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 02:12:42,409 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 02:12:42,409 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 02:12:42,410 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 02:12:42,411 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 02:12:42,411 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 02:12:42,411 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 02:12:42,411 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 02:12:42,411 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 02:12:42,411 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 02:12:42,412 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 02:12:42,412 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 02:12:42,412 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 02:12:42,412 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 02:12:42,412 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 02:12:42,413 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 02:12:42,413 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 02:12:42,413 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 02:12:42,413 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 02:12:42,413 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 02:12:42,414 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 02:12:42,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 02:12:42,414 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 02:12:42,414 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 02:12:42,414 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 02:12:42,466 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 02:12:42,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 02:12:42,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 02:12:42,486 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 02:12:42,486 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 02:12:42,487 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label25_true-unreach-call.c [2018-10-25 02:12:42,546 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4253b1572/02e67f83762b4b689e30ea2872b8a13a/FLAG0785733d2 [2018-10-25 02:12:43,428 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 02:12:43,429 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label25_true-unreach-call.c [2018-10-25 02:12:43,488 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4253b1572/02e67f83762b4b689e30ea2872b8a13a/FLAG0785733d2 [2018-10-25 02:12:43,511 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/4253b1572/02e67f83762b4b689e30ea2872b8a13a [2018-10-25 02:12:43,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 02:12:43,528 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 02:12:43,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 02:12:43,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 02:12:43,536 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 02:12:43,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:12:43" (1/1) ... [2018-10-25 02:12:43,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b40bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:43, skipping insertion in model container [2018-10-25 02:12:43,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:12:43" (1/1) ... [2018-10-25 02:12:43,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 02:12:43,832 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 02:12:45,829 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:12:45,834 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 02:12:47,015 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:12:47,071 INFO L193 MainTranslator]: Completed translation [2018-10-25 02:12:47,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47 WrapperNode [2018-10-25 02:12:47,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 02:12:47,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 02:12:47,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 02:12:47,073 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 02:12:47,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (1/1) ... [2018-10-25 02:12:47,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (1/1) ... [2018-10-25 02:12:47,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 02:12:47,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 02:12:47,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 02:12:47,823 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 02:12:47,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (1/1) ... [2018-10-25 02:12:47,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (1/1) ... [2018-10-25 02:12:47,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (1/1) ... [2018-10-25 02:12:47,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (1/1) ... [2018-10-25 02:12:48,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (1/1) ... [2018-10-25 02:12:48,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (1/1) ... [2018-10-25 02:12:48,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (1/1) ... [2018-10-25 02:12:48,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 02:12:48,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 02:12:48,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 02:12:48,407 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 02:12:48,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (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 02:12:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 02:12:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 02:12:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-25 02:12:48,478 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-25 02:12:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-25 02:12:48,478 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-25 02:12:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 02:12:48,478 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 02:12:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 02:12:48,479 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 02:12:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 02:12:48,480 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 02:12:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 02:12:48,480 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 02:12:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 02:12:48,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 02:12:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 02:12:48,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 02:13:10,605 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 02:13:10,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:13:10 BoogieIcfgContainer [2018-10-25 02:13:10,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 02:13:10,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 02:13:10,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 02:13:10,611 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 02:13:10,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 02:12:43" (1/3) ... [2018-10-25 02:13:10,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621c9827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:13:10, skipping insertion in model container [2018-10-25 02:13:10,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:12:47" (2/3) ... [2018-10-25 02:13:10,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@621c9827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:13:10, skipping insertion in model container [2018-10-25 02:13:10,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:13:10" (3/3) ... [2018-10-25 02:13:10,615 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label25_true-unreach-call.c [2018-10-25 02:13:10,626 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 02:13:10,638 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 02:13:10,657 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 02:13:10,713 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 02:13:10,714 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 02:13:10,714 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 02:13:10,714 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 02:13:10,714 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 02:13:10,714 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 02:13:10,714 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 02:13:10,715 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 02:13:10,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-25 02:13:10,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-25 02:13:10,793 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:13:10,794 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] [2018-10-25 02:13:10,797 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:13:10,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:13:10,804 INFO L82 PathProgramCache]: Analyzing trace with hash -2043790486, now seen corresponding path program 1 times [2018-10-25 02:13:10,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:13:10,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:13:10,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:13:10,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:13:10,868 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:13:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:13:11,338 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 02:13:11,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:13:11,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 02:13:11,342 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:13:11,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 02:13:11,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 02:13:11,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:13:11,368 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-10-25 02:13:38,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:13:38,979 INFO L93 Difference]: Finished difference Result 6465 states and 12332 transitions. [2018-10-25 02:13:38,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 02:13:38,981 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-10-25 02:13:38,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:13:39,042 INFO L225 Difference]: With dead ends: 6465 [2018-10-25 02:13:39,042 INFO L226 Difference]: Without dead ends: 4681 [2018-10-25 02:13:39,058 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 02:13:39,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2018-10-25 02:13:39,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 3200. [2018-10-25 02:13:39,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3200 states. [2018-10-25 02:13:39,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 5132 transitions. [2018-10-25 02:13:39,298 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 5132 transitions. Word has length 43 [2018-10-25 02:13:39,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:13:39,299 INFO L481 AbstractCegarLoop]: Abstraction has 3200 states and 5132 transitions. [2018-10-25 02:13:39,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 02:13:39,300 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 5132 transitions. [2018-10-25 02:13:39,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-25 02:13:39,310 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:13:39,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:13:39,311 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:13:39,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:13:39,312 INFO L82 PathProgramCache]: Analyzing trace with hash 96835924, now seen corresponding path program 1 times [2018-10-25 02:13:39,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:13:39,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:13:39,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:13:39,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:13:39,314 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:13:39,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:13:39,744 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:13:40,144 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:13:40,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:13:40,145 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:13:40,145 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:13:40,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:13:40,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:13:40,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:13:40,148 INFO L87 Difference]: Start difference. First operand 3200 states and 5132 transitions. Second operand 6 states. [2018-10-25 02:14:06,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:14:06,073 INFO L93 Difference]: Finished difference Result 12097 states and 19723 transitions. [2018-10-25 02:14:06,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:14:06,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-10-25 02:14:06,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:14:06,130 INFO L225 Difference]: With dead ends: 12097 [2018-10-25 02:14:06,131 INFO L226 Difference]: Without dead ends: 8903 [2018-10-25 02:14:06,146 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:14:06,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2018-10-25 02:14:06,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 8846. [2018-10-25 02:14:06,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8846 states. [2018-10-25 02:14:06,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 12708 transitions. [2018-10-25 02:14:06,391 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 12708 transitions. Word has length 115 [2018-10-25 02:14:06,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:14:06,392 INFO L481 AbstractCegarLoop]: Abstraction has 8846 states and 12708 transitions. [2018-10-25 02:14:06,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:14:06,392 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 12708 transitions. [2018-10-25 02:14:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-10-25 02:14:06,399 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:14:06,400 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:06,405 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:14:06,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:14:06,405 INFO L82 PathProgramCache]: Analyzing trace with hash 554705181, now seen corresponding path program 1 times [2018-10-25 02:14:06,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:14:06,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:06,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:14:06,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:06,407 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:14:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:14:06,718 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:14:06,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:14:06,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:14:06,719 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:14:06,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:14:06,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:14:06,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:14:06,722 INFO L87 Difference]: Start difference. First operand 8846 states and 12708 transitions. Second operand 6 states. [2018-10-25 02:14:31,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:14:31,710 INFO L93 Difference]: Finished difference Result 29443 states and 43438 transitions. [2018-10-25 02:14:31,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 02:14:31,716 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 117 [2018-10-25 02:14:31,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:14:31,820 INFO L225 Difference]: With dead ends: 29443 [2018-10-25 02:14:31,820 INFO L226 Difference]: Without dead ends: 20603 [2018-10-25 02:14:31,857 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:14:31,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20603 states. [2018-10-25 02:14:32,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20603 to 20447. [2018-10-25 02:14:32,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20447 states. [2018-10-25 02:14:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20447 states to 20447 states and 28690 transitions. [2018-10-25 02:14:32,341 INFO L78 Accepts]: Start accepts. Automaton has 20447 states and 28690 transitions. Word has length 117 [2018-10-25 02:14:32,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:14:32,342 INFO L481 AbstractCegarLoop]: Abstraction has 20447 states and 28690 transitions. [2018-10-25 02:14:32,342 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:14:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 20447 states and 28690 transitions. [2018-10-25 02:14:32,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-10-25 02:14:32,345 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:14:32,345 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:32,345 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:14:32,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:14:32,345 INFO L82 PathProgramCache]: Analyzing trace with hash -730954474, now seen corresponding path program 1 times [2018-10-25 02:14:32,346 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:14:32,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:32,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:14:32,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:32,347 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:14:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:14:32,713 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:14:32,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:14:32,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:14:32,714 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:14:32,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:14:32,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:14:32,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:14:32,716 INFO L87 Difference]: Start difference. First operand 20447 states and 28690 transitions. Second operand 6 states. [2018-10-25 02:14:57,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:14:57,587 INFO L93 Difference]: Finished difference Result 62330 states and 89905 transitions. [2018-10-25 02:14:57,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-25 02:14:57,588 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-10-25 02:14:57,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:14:57,758 INFO L225 Difference]: With dead ends: 62330 [2018-10-25 02:14:57,758 INFO L226 Difference]: Without dead ends: 41889 [2018-10-25 02:14:57,835 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:14:57,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41889 states. [2018-10-25 02:14:58,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41889 to 41552. [2018-10-25 02:14:59,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41552 states. [2018-10-25 02:14:59,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41552 states to 41552 states and 57911 transitions. [2018-10-25 02:14:59,095 INFO L78 Accepts]: Start accepts. Automaton has 41552 states and 57911 transitions. Word has length 125 [2018-10-25 02:14:59,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:14:59,095 INFO L481 AbstractCegarLoop]: Abstraction has 41552 states and 57911 transitions. [2018-10-25 02:14:59,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:14:59,096 INFO L276 IsEmpty]: Start isEmpty. Operand 41552 states and 57911 transitions. [2018-10-25 02:14:59,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-25 02:14:59,098 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:14:59,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:14:59,099 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:14:59,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:14:59,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1382979436, now seen corresponding path program 1 times [2018-10-25 02:14:59,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:14:59,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:59,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:14:59,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:14:59,101 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:14:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:14:59,421 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:14:59,421 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:14:59,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-25 02:14:59,421 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:14:59,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-25 02:14:59,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-25 02:14:59,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-25 02:14:59,423 INFO L87 Difference]: Start difference. First operand 41552 states and 57911 transitions. Second operand 5 states. [2018-10-25 02:15:33,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:15:33,493 INFO L93 Difference]: Finished difference Result 125973 states and 180950 transitions. [2018-10-25 02:15:33,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 02:15:33,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2018-10-25 02:15:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:15:33,775 INFO L225 Difference]: With dead ends: 125973 [2018-10-25 02:15:33,775 INFO L226 Difference]: Without dead ends: 84427 [2018-10-25 02:15:33,847 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-25 02:15:33,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84427 states. [2018-10-25 02:15:35,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84427 to 83227. [2018-10-25 02:15:35,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83227 states. [2018-10-25 02:15:35,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83227 states to 83227 states and 107421 transitions. [2018-10-25 02:15:35,318 INFO L78 Accepts]: Start accepts. Automaton has 83227 states and 107421 transitions. Word has length 145 [2018-10-25 02:15:35,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:15:35,319 INFO L481 AbstractCegarLoop]: Abstraction has 83227 states and 107421 transitions. [2018-10-25 02:15:35,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-25 02:15:35,319 INFO L276 IsEmpty]: Start isEmpty. Operand 83227 states and 107421 transitions. [2018-10-25 02:15:35,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-10-25 02:15:35,327 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:15:35,327 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:15:35,327 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:15:35,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:15:35,330 INFO L82 PathProgramCache]: Analyzing trace with hash 544420257, now seen corresponding path program 1 times [2018-10-25 02:15:35,330 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:15:35,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:15:35,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:15:35,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:15:35,334 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:15:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:15:35,643 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 02:15:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:15:36,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:15:36,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:15:36,071 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:15:36,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:15:36,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:15:36,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:15:36,072 INFO L87 Difference]: Start difference. First operand 83227 states and 107421 transitions. Second operand 6 states. [2018-10-25 02:16:00,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:16:00,537 INFO L93 Difference]: Finished difference Result 188242 states and 253619 transitions. [2018-10-25 02:16:00,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:16:00,538 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2018-10-25 02:16:00,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:16:00,936 INFO L225 Difference]: With dead ends: 188242 [2018-10-25 02:16:00,936 INFO L226 Difference]: Without dead ends: 105021 [2018-10-25 02:16:01,101 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:16:01,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105021 states. [2018-10-25 02:16:03,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105021 to 104258. [2018-10-25 02:16:03,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104258 states. [2018-10-25 02:16:03,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104258 states to 104258 states and 134842 transitions. [2018-10-25 02:16:03,735 INFO L78 Accepts]: Start accepts. Automaton has 104258 states and 134842 transitions. Word has length 208 [2018-10-25 02:16:03,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:16:03,735 INFO L481 AbstractCegarLoop]: Abstraction has 104258 states and 134842 transitions. [2018-10-25 02:16:03,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:16:03,736 INFO L276 IsEmpty]: Start isEmpty. Operand 104258 states and 134842 transitions. [2018-10-25 02:16:03,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2018-10-25 02:16:03,749 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:16:03,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:03,750 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:16:03,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:16:03,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1346825870, now seen corresponding path program 1 times [2018-10-25 02:16:03,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:16:03,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:16:03,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:16:03,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:16:03,752 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:16:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:16:04,291 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:16:04,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:16:04,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 02:16:04,292 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:16:04,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 02:16:04,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 02:16:04,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:16:04,293 INFO L87 Difference]: Start difference. First operand 104258 states and 134842 transitions. Second operand 4 states. [2018-10-25 02:16:27,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:16:27,728 INFO L93 Difference]: Finished difference Result 296555 states and 401783 transitions. [2018-10-25 02:16:27,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 02:16:27,729 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 530 [2018-10-25 02:16:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:16:28,231 INFO L225 Difference]: With dead ends: 296555 [2018-10-25 02:16:28,232 INFO L226 Difference]: Without dead ends: 192303 [2018-10-25 02:16:28,450 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 02:16:29,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192303 states. [2018-10-25 02:16:31,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192303 to 192005. [2018-10-25 02:16:31,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192005 states. [2018-10-25 02:16:32,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192005 states to 192005 states and 250189 transitions. [2018-10-25 02:16:32,403 INFO L78 Accepts]: Start accepts. Automaton has 192005 states and 250189 transitions. Word has length 530 [2018-10-25 02:16:32,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:16:32,404 INFO L481 AbstractCegarLoop]: Abstraction has 192005 states and 250189 transitions. [2018-10-25 02:16:32,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 02:16:32,405 INFO L276 IsEmpty]: Start isEmpty. Operand 192005 states and 250189 transitions. [2018-10-25 02:16:32,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2018-10-25 02:16:32,433 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:16:32,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:16:32,434 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:16:32,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:16:32,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1115290536, now seen corresponding path program 1 times [2018-10-25 02:16:32,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:16:32,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:16:32,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:16:32,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:16:32,436 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:16:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:16:34,824 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:16:34,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:16:34,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 02:16:34,825 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:16:34,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 02:16:34,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 02:16:34,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:16:34,828 INFO L87 Difference]: Start difference. First operand 192005 states and 250189 transitions. Second operand 4 states. Received shutdown request... [2018-10-25 02:16:36,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 02:16:36,159 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 02:16:36,165 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 02:16:36,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 02:16:36 BoogieIcfgContainer [2018-10-25 02:16:36,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 02:16:36,166 INFO L168 Benchmark]: Toolchain (without parser) took 232640.46 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -145.6 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-25 02:16:36,167 INFO L168 Benchmark]: CDTParser took 0.19 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 02:16:36,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3542.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. [2018-10-25 02:16:36,171 INFO L168 Benchmark]: Boogie Procedure Inliner took 750.15 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-25 02:16:36,172 INFO L168 Benchmark]: Boogie Preprocessor took 583.41 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-10-25 02:16:36,173 INFO L168 Benchmark]: RCFGBuilder took 22199.53 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 180.9 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 480.4 MB). Peak memory consumption was 664.8 MB. Max. memory is 7.1 GB. [2018-10-25 02:16:36,175 INFO L168 Benchmark]: TraceAbstraction took 205558.38 ms. Allocated memory was 2.6 GB in the beginning and 3.7 GB in the end (delta: 1.2 GB). Free memory was 1.7 GB in the beginning and 1.5 GB in the end (delta: 179.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-25 02:16:36,184 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 3542.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 750.15 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 847.2 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 583.41 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 22199.53 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 180.9 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 480.4 MB). Peak memory consumption was 664.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205558.38 ms. Allocated memory was 2.6 GB in the beginning and 3.7 GB in the end (delta: 1.2 GB). Free memory was 1.7 GB in the beginning and 1.5 GB in the end (delta: 179.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 124). Cancelled while BasicCegarLoop was constructing difference of abstraction (192005states) and FLOYD_HOARE automaton (currently 3 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (7142 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 205.4s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 188.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6731 SDtfs, 46580 SDslu, 5176 SDs, 0 SdLazy, 71381 SolverSat, 18748 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 162.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=192005occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 10.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 4292 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1920 NumberOfCodeBlocks, 1920 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1912 ConstructedInterpolants, 0 QuantifiedInterpolants, 1306647 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 252/252 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown