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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label47_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:15:50,424 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:15:50,426 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:15:50,445 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:15:50,445 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:15:50,447 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:15:50,448 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:15:50,450 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:15:50,451 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:15:50,452 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:15:50,453 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:15:50,453 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:15:50,454 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:15:50,455 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:15:50,457 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:15:50,457 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:15:50,458 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:15:50,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:15:50,462 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:15:50,464 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:15:50,465 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:15:50,466 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:15:50,469 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 17:15:50,469 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 17:15:50,470 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 17:15:50,471 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 17:15:50,472 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 17:15:50,472 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 17:15:50,473 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 17:15:50,474 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 17:15:50,475 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 17:15:50,475 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 17:15:50,476 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:15:50,476 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:15:50,477 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:15:50,478 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:15:50,478 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 17:15:50,499 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:15:50,500 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:15:50,502 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:15:50,502 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:15:50,502 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:15:50,502 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:15:50,503 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:15:50,503 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:15:50,503 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:15:50,503 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:15:50,503 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:15:50,504 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:15:50,504 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:15:50,505 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:15:50,505 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:15:50,505 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:15:50,505 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:15:50,506 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:15:50,506 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:15:50,507 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:15:50,507 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:15:50,507 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:15:50,507 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:15:50,507 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:15:50,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:15:50,508 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:15:50,508 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:15:50,508 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:15:50,508 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:15:50,508 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:15:50,509 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:15:50,509 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:15:50,509 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:15:50,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:15:50,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:15:50,598 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:15:50,600 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:15:50,600 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:15:50,601 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label47_true-unreach-call.c [2018-09-14 17:15:50,996 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62b308bd/bcc06424b7cd44abbc870dd24a2fe3c1/FLAG97164aaab [2018-09-14 17:15:51,319 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:15:51,323 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label47_true-unreach-call.c [2018-09-14 17:15:51,345 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62b308bd/bcc06424b7cd44abbc870dd24a2fe3c1/FLAG97164aaab [2018-09-14 17:15:51,363 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a62b308bd/bcc06424b7cd44abbc870dd24a2fe3c1 [2018-09-14 17:15:51,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:15:51,381 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:15:51,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:15:51,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:15:51,391 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:15:51,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:15:51" (1/1) ... [2018-09-14 17:15:51,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bedad32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:51, skipping insertion in model container [2018-09-14 17:15:51,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:15:51" (1/1) ... [2018-09-14 17:15:51,408 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:15:52,077 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:15:52,094 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:15:52,281 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:15:52,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52 WrapperNode [2018-09-14 17:15:52,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:15:52,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:15:52,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:15:52,368 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:15:52,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (1/1) ... [2018-09-14 17:15:52,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (1/1) ... [2018-09-14 17:15:52,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:15:52,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:15:52,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:15:52,542 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:15:52,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (1/1) ... [2018-09-14 17:15:52,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (1/1) ... [2018-09-14 17:15:52,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (1/1) ... [2018-09-14 17:15:52,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (1/1) ... [2018-09-14 17:15:52,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (1/1) ... [2018-09-14 17:15:52,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (1/1) ... [2018-09-14 17:15:52,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (1/1) ... [2018-09-14 17:15:52,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:15:52,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:15:52,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:15:52,931 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:15:52,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (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 [2018-09-14 17:15:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:15:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:15:53,004 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:15:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:15:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:15:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:15:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:15:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:15:58,159 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:15:58,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:15:58 BoogieIcfgContainer [2018-09-14 17:15:58,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:15:58,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:15:58,163 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:15:58,170 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:15:58,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:15:51" (1/3) ... [2018-09-14 17:15:58,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ed6b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:15:58, skipping insertion in model container [2018-09-14 17:15:58,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:15:52" (2/3) ... [2018-09-14 17:15:58,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ed6b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:15:58, skipping insertion in model container [2018-09-14 17:15:58,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:15:58" (3/3) ... [2018-09-14 17:15:58,174 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label47_true-unreach-call.c [2018-09-14 17:15:58,185 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:15:58,197 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:15:58,267 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:15:58,268 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:15:58,269 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:15:58,269 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:15:58,269 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:15:58,269 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:15:58,269 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:15:58,269 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:15:58,270 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:15:58,301 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-14 17:15:58,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-14 17:15:58,310 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:15:58,312 INFO L376 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] [2018-09-14 17:15:58,313 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:15:58,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1591725132, now seen corresponding path program 1 times [2018-09-14 17:15:58,322 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:15:58,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:15:58,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:15:58,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:15:58,383 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:15:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:15:58,842 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:15:58,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:15:58,981 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:15:58,981 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:15:58,981 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:15:58,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:15:59,008 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:15:59,009 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:15:59,012 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-09-14 17:16:01,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:01,204 INFO L93 Difference]: Finished difference Result 790 states and 1382 transitions. [2018-09-14 17:16:01,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:16:01,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-09-14 17:16:01,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:01,231 INFO L225 Difference]: With dead ends: 790 [2018-09-14 17:16:01,231 INFO L226 Difference]: Without dead ends: 495 [2018-09-14 17:16:01,240 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:16:01,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2018-09-14 17:16:01,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 488. [2018-09-14 17:16:01,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-09-14 17:16:01,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 849 transitions. [2018-09-14 17:16:01,339 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 849 transitions. Word has length 42 [2018-09-14 17:16:01,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:01,340 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 849 transitions. [2018-09-14 17:16:01,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:16:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 849 transitions. [2018-09-14 17:16:01,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-09-14 17:16:01,349 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:01,349 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:16:01,350 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:01,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1369215340, now seen corresponding path program 1 times [2018-09-14 17:16:01,351 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:01,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:01,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:01,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:01,353 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:01,672 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:01,672 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:16:01,673 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:16:01,673 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:01,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:16:01,675 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:16:01,675 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:16:01,676 INFO L87 Difference]: Start difference. First operand 488 states and 849 transitions. Second operand 5 states. [2018-09-14 17:16:06,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:06,656 INFO L93 Difference]: Finished difference Result 1731 states and 3162 transitions. [2018-09-14 17:16:06,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:16:06,657 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2018-09-14 17:16:06,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:06,672 INFO L225 Difference]: With dead ends: 1731 [2018-09-14 17:16:06,672 INFO L226 Difference]: Without dead ends: 1249 [2018-09-14 17:16:06,678 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:16:06,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2018-09-14 17:16:06,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1032. [2018-09-14 17:16:06,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2018-09-14 17:16:06,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1658 transitions. [2018-09-14 17:16:06,768 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1658 transitions. Word has length 118 [2018-09-14 17:16:06,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:06,769 INFO L480 AbstractCegarLoop]: Abstraction has 1032 states and 1658 transitions. [2018-09-14 17:16:06,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:16:06,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1658 transitions. [2018-09-14 17:16:06,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-14 17:16:06,775 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:06,775 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:16:06,776 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:06,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1411728153, now seen corresponding path program 1 times [2018-09-14 17:16:06,776 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:06,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:06,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:06,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:06,783 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:07,099 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:07,100 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:16:07,101 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:16:07,101 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:07,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:16:07,102 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:16:07,102 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:16:07,103 INFO L87 Difference]: Start difference. First operand 1032 states and 1658 transitions. Second operand 5 states. [2018-09-14 17:16:11,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:11,214 INFO L93 Difference]: Finished difference Result 3666 states and 6091 transitions. [2018-09-14 17:16:11,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:16:11,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 129 [2018-09-14 17:16:11,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:11,242 INFO L225 Difference]: With dead ends: 3666 [2018-09-14 17:16:11,242 INFO L226 Difference]: Without dead ends: 2640 [2018-09-14 17:16:11,249 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:16:11,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2640 states. [2018-09-14 17:16:11,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2640 to 2605. [2018-09-14 17:16:11,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2605 states. [2018-09-14 17:16:11,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 3731 transitions. [2018-09-14 17:16:11,339 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 3731 transitions. Word has length 129 [2018-09-14 17:16:11,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:11,340 INFO L480 AbstractCegarLoop]: Abstraction has 2605 states and 3731 transitions. [2018-09-14 17:16:11,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:16:11,340 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 3731 transitions. [2018-09-14 17:16:11,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-09-14 17:16:11,345 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:11,345 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:16:11,345 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:11,346 INFO L82 PathProgramCache]: Analyzing trace with hash 713476527, now seen corresponding path program 1 times [2018-09-14 17:16:11,346 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:11,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:11,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:11,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:11,347 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 29 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:11,770 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:11,770 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:16:11,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:11,796 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:11,931 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:12,074 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:12,075 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:12,583 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:12,617 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:16:12,617 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-14 17:16:12,618 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:12,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:16:12,620 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:16:12,620 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:16:12,620 INFO L87 Difference]: Start difference. First operand 2605 states and 3731 transitions. Second operand 3 states. [2018-09-14 17:16:16,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:16,439 INFO L93 Difference]: Finished difference Result 6000 states and 8839 transitions. [2018-09-14 17:16:16,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:16:16,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2018-09-14 17:16:16,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:16,461 INFO L225 Difference]: With dead ends: 6000 [2018-09-14 17:16:16,461 INFO L226 Difference]: Without dead ends: 3401 [2018-09-14 17:16:16,471 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 348 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:16:16,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2018-09-14 17:16:16,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 3205. [2018-09-14 17:16:16,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3205 states. [2018-09-14 17:16:16,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 4562 transitions. [2018-09-14 17:16:16,550 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 4562 transitions. Word has length 174 [2018-09-14 17:16:16,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:16,551 INFO L480 AbstractCegarLoop]: Abstraction has 3205 states and 4562 transitions. [2018-09-14 17:16:16,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:16:16,552 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 4562 transitions. [2018-09-14 17:16:16,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-09-14 17:16:16,557 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:16,557 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:16:16,558 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:16,558 INFO L82 PathProgramCache]: Analyzing trace with hash -910630669, now seen corresponding path program 1 times [2018-09-14 17:16:16,558 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:16,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:16,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:16,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:16,559 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:16,891 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 17:16:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 70 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:16:17,298 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:17,298 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:16:17,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:17,316 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:17,416 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-09-14 17:16:17,813 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:18,037 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 70 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:16:18,058 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:16:18,058 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 17:16:18,059 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:18,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:16:18,059 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:16:18,059 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:16:18,060 INFO L87 Difference]: Start difference. First operand 3205 states and 4562 transitions. Second operand 5 states. [2018-09-14 17:16:21,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:21,623 INFO L93 Difference]: Finished difference Result 10429 states and 15187 transitions. [2018-09-14 17:16:21,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:16:21,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2018-09-14 17:16:21,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:21,664 INFO L225 Difference]: With dead ends: 10429 [2018-09-14 17:16:21,665 INFO L226 Difference]: Without dead ends: 7230 [2018-09-14 17:16:21,680 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 407 GetRequests, 393 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-09-14 17:16:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7230 states. [2018-09-14 17:16:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7230 to 7140. [2018-09-14 17:16:21,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7140 states. [2018-09-14 17:16:21,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7140 states to 7140 states and 9910 transitions. [2018-09-14 17:16:21,839 INFO L78 Accepts]: Start accepts. Automaton has 7140 states and 9910 transitions. Word has length 199 [2018-09-14 17:16:21,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:21,840 INFO L480 AbstractCegarLoop]: Abstraction has 7140 states and 9910 transitions. [2018-09-14 17:16:21,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:16:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 7140 states and 9910 transitions. [2018-09-14 17:16:21,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-09-14 17:16:21,850 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:21,850 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:16:21,850 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:21,851 INFO L82 PathProgramCache]: Analyzing trace with hash 943316104, now seen corresponding path program 1 times [2018-09-14 17:16:21,851 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:21,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:21,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:21,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:21,852 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:22,277 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:22,277 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:22,278 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:16:22,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:22,288 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:22,374 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:22,547 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-14 17:16:22,547 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:22,682 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-14 17:16:22,707 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:16:22,707 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-14 17:16:22,707 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:22,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:16:22,708 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:16:22,709 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:16:22,709 INFO L87 Difference]: Start difference. First operand 7140 states and 9910 transitions. Second operand 3 states. [2018-09-14 17:16:24,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:24,342 INFO L93 Difference]: Finished difference Result 18649 states and 26527 transitions. [2018-09-14 17:16:24,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:16:24,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2018-09-14 17:16:24,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:24,393 INFO L225 Difference]: With dead ends: 18649 [2018-09-14 17:16:24,394 INFO L226 Difference]: Without dead ends: 11515 [2018-09-14 17:16:24,435 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 398 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:16:24,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11515 states. [2018-09-14 17:16:24,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11515 to 11385. [2018-09-14 17:16:24,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11385 states. [2018-09-14 17:16:24,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11385 states to 11385 states and 15358 transitions. [2018-09-14 17:16:24,676 INFO L78 Accepts]: Start accepts. Automaton has 11385 states and 15358 transitions. Word has length 200 [2018-09-14 17:16:24,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:24,677 INFO L480 AbstractCegarLoop]: Abstraction has 11385 states and 15358 transitions. [2018-09-14 17:16:24,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:16:24,677 INFO L276 IsEmpty]: Start isEmpty. Operand 11385 states and 15358 transitions. [2018-09-14 17:16:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-09-14 17:16:24,691 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:24,692 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:16:24,692 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:24,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1983343545, now seen corresponding path program 1 times [2018-09-14 17:16:24,692 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:24,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:24,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:24,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:24,694 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:24,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:24,919 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-14 17:16:24,919 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:16:24,919 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:16:24,919 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:24,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:16:24,920 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:16:24,920 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:16:24,921 INFO L87 Difference]: Start difference. First operand 11385 states and 15358 transitions. Second operand 3 states. [2018-09-14 17:16:26,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:26,802 INFO L93 Difference]: Finished difference Result 25297 states and 35254 transitions. [2018-09-14 17:16:26,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:16:26,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2018-09-14 17:16:26,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:26,874 INFO L225 Difference]: With dead ends: 25297 [2018-09-14 17:16:26,875 INFO L226 Difference]: Without dead ends: 13918 [2018-09-14 17:16:26,911 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:16:26,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13918 states. [2018-09-14 17:16:27,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13918 to 13495. [2018-09-14 17:16:27,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13495 states. [2018-09-14 17:16:27,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 18486 transitions. [2018-09-14 17:16:27,178 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 18486 transitions. Word has length 205 [2018-09-14 17:16:27,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:27,178 INFO L480 AbstractCegarLoop]: Abstraction has 13495 states and 18486 transitions. [2018-09-14 17:16:27,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:16:27,179 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 18486 transitions. [2018-09-14 17:16:27,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2018-09-14 17:16:27,202 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:27,203 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:16:27,203 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:27,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1780175367, now seen corresponding path program 1 times [2018-09-14 17:16:27,204 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:27,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:27,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:27,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:27,205 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:27,429 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-14 17:16:27,430 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:16:27,430 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:16:27,430 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:27,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:16:27,431 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:16:27,431 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:16:27,431 INFO L87 Difference]: Start difference. First operand 13495 states and 18486 transitions. Second operand 3 states. [2018-09-14 17:16:29,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:29,727 INFO L93 Difference]: Finished difference Result 28794 states and 40732 transitions. [2018-09-14 17:16:29,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:16:29,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2018-09-14 17:16:29,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:29,794 INFO L225 Difference]: With dead ends: 28794 [2018-09-14 17:16:29,795 INFO L226 Difference]: Without dead ends: 15305 [2018-09-14 17:16:29,826 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:16:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15305 states. [2018-09-14 17:16:30,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15305 to 15305. [2018-09-14 17:16:30,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15305 states. [2018-09-14 17:16:30,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15305 states to 15305 states and 20950 transitions. [2018-09-14 17:16:30,126 INFO L78 Accepts]: Start accepts. Automaton has 15305 states and 20950 transitions. Word has length 233 [2018-09-14 17:16:30,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:30,127 INFO L480 AbstractCegarLoop]: Abstraction has 15305 states and 20950 transitions. [2018-09-14 17:16:30,127 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:16:30,127 INFO L276 IsEmpty]: Start isEmpty. Operand 15305 states and 20950 transitions. [2018-09-14 17:16:30,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-09-14 17:16:30,152 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:30,153 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:16:30,153 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:30,153 INFO L82 PathProgramCache]: Analyzing trace with hash 331554026, now seen corresponding path program 1 times [2018-09-14 17:16:30,153 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:30,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:30,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:30,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:30,155 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:30,731 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:30,731 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:16:30,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:30,743 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:30,824 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:31,425 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-14 17:16:31,841 WARN L178 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 11 [2018-09-14 17:16:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:31,994 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:32,783 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:32,783 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:16:32,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:32,801 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:32,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:33,106 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 71 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:33,107 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:33,406 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:33,408 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:16:33,409 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 7, 5] total 19 [2018-09-14 17:16:33,409 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:16:33,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-14 17:16:33,410 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-14 17:16:33,411 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2018-09-14 17:16:33,411 INFO L87 Difference]: Start difference. First operand 15305 states and 20950 transitions. Second operand 11 states. [2018-09-14 17:16:41,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:41,687 INFO L93 Difference]: Finished difference Result 34920 states and 51009 transitions. [2018-09-14 17:16:41,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-09-14 17:16:41,688 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 240 [2018-09-14 17:16:41,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:41,770 INFO L225 Difference]: With dead ends: 34920 [2018-09-14 17:16:41,770 INFO L226 Difference]: Without dead ends: 17878 [2018-09-14 17:16:41,837 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1007 GetRequests, 957 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=597, Invalid=1953, Unknown=0, NotChecked=0, Total=2550 [2018-09-14 17:16:41,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17878 states. [2018-09-14 17:16:42,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17878 to 16999. [2018-09-14 17:16:42,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16999 states. [2018-09-14 17:16:42,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16999 states to 16999 states and 20630 transitions. [2018-09-14 17:16:42,191 INFO L78 Accepts]: Start accepts. Automaton has 16999 states and 20630 transitions. Word has length 240 [2018-09-14 17:16:42,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:42,192 INFO L480 AbstractCegarLoop]: Abstraction has 16999 states and 20630 transitions. [2018-09-14 17:16:42,192 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-14 17:16:42,192 INFO L276 IsEmpty]: Start isEmpty. Operand 16999 states and 20630 transitions. [2018-09-14 17:16:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-09-14 17:16:42,225 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:42,225 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:16:42,226 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:42,226 INFO L82 PathProgramCache]: Analyzing trace with hash -159378617, now seen corresponding path program 1 times [2018-09-14 17:16:42,226 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:42,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:42,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:42,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:42,228 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:42,999 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 70 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:16:42,999 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:43,000 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:16:43,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:43,007 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:43,101 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-09-14 17:16:43,238 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:43,814 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 70 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:16:43,850 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:16:43,851 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 11 [2018-09-14 17:16:43,851 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:16:43,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:16:43,852 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:16:43,852 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-14 17:16:43,853 INFO L87 Difference]: Start difference. First operand 16999 states and 20630 transitions. Second operand 5 states. [2018-09-14 17:16:46,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:46,430 INFO L93 Difference]: Finished difference Result 35699 states and 43325 transitions. [2018-09-14 17:16:46,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:16:46,431 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 283 [2018-09-14 17:16:46,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:46,489 INFO L225 Difference]: With dead ends: 35699 [2018-09-14 17:16:46,489 INFO L226 Difference]: Without dead ends: 18895 [2018-09-14 17:16:46,525 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 563 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-14 17:16:46,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18895 states. [2018-09-14 17:16:46,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18895 to 17722. [2018-09-14 17:16:46,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17722 states. [2018-09-14 17:16:46,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17722 states to 17722 states and 21496 transitions. [2018-09-14 17:16:46,802 INFO L78 Accepts]: Start accepts. Automaton has 17722 states and 21496 transitions. Word has length 283 [2018-09-14 17:16:46,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:46,803 INFO L480 AbstractCegarLoop]: Abstraction has 17722 states and 21496 transitions. [2018-09-14 17:16:46,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:16:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand 17722 states and 21496 transitions. [2018-09-14 17:16:46,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2018-09-14 17:16:46,833 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:46,833 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:16:46,833 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:46,834 INFO L82 PathProgramCache]: Analyzing trace with hash 1844154338, now seen corresponding path program 1 times [2018-09-14 17:16:46,834 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:46,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:46,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:46,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:46,835 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:47,479 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-14 17:16:47,860 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-14 17:16:48,611 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:48,612 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:48,612 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:16:48,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:48,621 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:48,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:48,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:49,460 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:50,295 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:16:50,296 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:16:50,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:50,311 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:16:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:16:50,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:16:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:50,650 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:16:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:16:51,106 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:16:51,107 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 8, 5, 5] total 27 [2018-09-14 17:16:51,107 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:16:51,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-14 17:16:51,109 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-14 17:16:51,109 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2018-09-14 17:16:51,109 INFO L87 Difference]: Start difference. First operand 17722 states and 21496 transitions. Second operand 17 states. [2018-09-14 17:16:51,258 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2018-09-14 17:16:51,894 WARN L178 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2018-09-14 17:16:54,099 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2018-09-14 17:16:58,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:16:58,933 INFO L93 Difference]: Finished difference Result 38808 states and 47466 transitions. [2018-09-14 17:16:58,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-14 17:16:58,935 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 326 [2018-09-14 17:16:58,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:16:58,989 INFO L225 Difference]: With dead ends: 38808 [2018-09-14 17:16:58,990 INFO L226 Difference]: Without dead ends: 21281 [2018-09-14 17:16:59,029 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1345 GetRequests, 1294 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=628, Invalid=1922, Unknown=0, NotChecked=0, Total=2550 [2018-09-14 17:16:59,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21281 states. [2018-09-14 17:16:59,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21281 to 19837. [2018-09-14 17:16:59,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19837 states. [2018-09-14 17:16:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19837 states to 19837 states and 23315 transitions. [2018-09-14 17:16:59,365 INFO L78 Accepts]: Start accepts. Automaton has 19837 states and 23315 transitions. Word has length 326 [2018-09-14 17:16:59,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:16:59,366 INFO L480 AbstractCegarLoop]: Abstraction has 19837 states and 23315 transitions. [2018-09-14 17:16:59,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-14 17:16:59,366 INFO L276 IsEmpty]: Start isEmpty. Operand 19837 states and 23315 transitions. [2018-09-14 17:16:59,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2018-09-14 17:16:59,400 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:16:59,401 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:16:59,401 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:16:59,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1201170939, now seen corresponding path program 1 times [2018-09-14 17:16:59,402 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:16:59,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:59,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:16:59,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:16:59,403 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:16:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:00,830 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 5 proven. 72 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2018-09-14 17:17:00,830 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:17:00,830 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:17:00,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:00,850 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:17:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:00,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:17:02,422 WARN L1001 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 Int)) (let ((.cse1 (+ v_prenex_2 69157))) (let ((.cse0 (mod .cse1 299861))) (and (<= c_~a29~0 (+ .cse0 277)) (< .cse1 0) (<= |c_old(~a29~0)| v_prenex_2) (not (= .cse0 0)))))) (exists ((v_~a29~0_618 Int)) (let ((.cse2 (mod (+ v_~a29~0_618 69157) 299861))) (and (<= c_~a29~0 (+ .cse2 300138)) (= .cse2 0) (<= |c_old(~a29~0)| v_~a29~0_618)))) (exists ((v_prenex_1 Int)) (let ((.cse3 (+ v_prenex_1 69157))) (and (<= 0 .cse3) (<= |c_old(~a29~0)| v_prenex_1) (<= c_~a29~0 (+ (mod .cse3 299861) 300138)))))) is different from true [2018-09-14 17:17:03,264 WARN L1001 $PredicateComparison]: unable to prove that (or (exists ((v_~a29~0_618 Int)) (let ((.cse0 (mod (+ v_~a29~0_618 69157) 299861))) (and (<= c_~a29~0 (+ .cse0 300138)) (= .cse0 0) (<= 130 v_~a29~0_618)))) (exists ((v_prenex_1 Int)) (let ((.cse1 (+ v_prenex_1 69157))) (and (<= 0 .cse1) (<= c_~a29~0 (+ (mod .cse1 299861) 300138)) (<= 130 v_prenex_1)))) (exists ((v_prenex_2 Int)) (let ((.cse3 (+ v_prenex_2 69157))) (let ((.cse2 (mod .cse3 299861))) (and (<= c_~a29~0 (+ .cse2 277)) (< .cse3 0) (<= 130 v_prenex_2) (not (= .cse2 0))))))) is different from true [2018-09-14 17:17:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 11 not checked. [2018-09-14 17:17:03,478 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:17:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 216 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:03,756 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:17:03,756 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:17:03,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:03,772 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:17:03,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:04,002 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:17:04,339 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 5 proven. 213 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:04,339 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:17:04,550 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 216 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:04,552 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:17:04,553 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 6, 9, 6] total 20 [2018-09-14 17:17:04,553 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:17:04,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-14 17:17:04,554 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-14 17:17:04,554 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=222, Unknown=2, NotChecked=66, Total=380 [2018-09-14 17:17:04,555 INFO L87 Difference]: Start difference. First operand 19837 states and 23315 transitions. Second operand 13 states. [2018-09-14 17:17:11,357 WARN L178 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2018-09-14 17:17:20,038 WARN L178 SmtUtils]: Spent 3.90 s on a formula simplification. DAG size of input: 41 DAG size of output: 17 [2018-09-14 17:17:24,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:17:24,217 INFO L93 Difference]: Finished difference Result 57552 states and 73840 transitions. [2018-09-14 17:17:24,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-14 17:17:24,217 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 357 [2018-09-14 17:17:24,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:17:24,305 INFO L225 Difference]: With dead ends: 57552 [2018-09-14 17:17:24,306 INFO L226 Difference]: Without dead ends: 34800 [2018-09-14 17:17:24,371 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1457 GetRequests, 1413 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=8, NotChecked=138, Total=1406 [2018-09-14 17:17:24,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34800 states. [2018-09-14 17:17:24,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34800 to 33958. [2018-09-14 17:17:24,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33958 states. [2018-09-14 17:17:24,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33958 states to 33958 states and 39501 transitions. [2018-09-14 17:17:24,980 INFO L78 Accepts]: Start accepts. Automaton has 33958 states and 39501 transitions. Word has length 357 [2018-09-14 17:17:24,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:17:24,980 INFO L480 AbstractCegarLoop]: Abstraction has 33958 states and 39501 transitions. [2018-09-14 17:17:24,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-14 17:17:24,981 INFO L276 IsEmpty]: Start isEmpty. Operand 33958 states and 39501 transitions. [2018-09-14 17:17:25,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2018-09-14 17:17:25,009 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:17:25,010 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:17:25,010 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:17:25,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1421757562, now seen corresponding path program 1 times [2018-09-14 17:17:25,010 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:17:25,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:17:25,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:25,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:17:25,012 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:17:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 114 proven. 323 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 17:17:25,748 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:17:25,748 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:17:25,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:25,756 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:17:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:25,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:17:26,438 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 34 [2018-09-14 17:17:26,987 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 112 proven. 330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:26,987 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:17:27,388 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2018-09-14 17:17:27,833 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 333 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-14 17:17:27,855 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:17:27,855 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:17:27,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:17:27,870 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:17:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:17:28,145 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:17:29,123 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 41 [2018-09-14 17:17:29,361 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 261 proven. 181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:17:29,362 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:17:29,627 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-09-14 17:17:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 333 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-14 17:17:29,835 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:17:29,836 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 6, 9, 6] total 27 [2018-09-14 17:17:29,836 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:17:29,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-14 17:17:29,838 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-14 17:17:29,838 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=608, Unknown=0, NotChecked=0, Total=702 [2018-09-14 17:17:29,839 INFO L87 Difference]: Start difference. First operand 33958 states and 39501 transitions. Second operand 20 states. [2018-09-14 17:17:33,072 WARN L178 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-14 17:17:34,316 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 36 [2018-09-14 17:17:41,801 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 30 [2018-09-14 17:17:49,231 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-09-14 17:17:52,503 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-14 17:18:14,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:18:14,614 INFO L93 Difference]: Finished difference Result 71345 states and 87929 transitions. [2018-09-14 17:18:14,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2018-09-14 17:18:14,614 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 436 [2018-09-14 17:18:14,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:18:14,615 INFO L225 Difference]: With dead ends: 71345 [2018-09-14 17:18:14,615 INFO L226 Difference]: Without dead ends: 0 [2018-09-14 17:18:14,768 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2145 GetRequests, 1904 SyntacticMatches, 5 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22998 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=5365, Invalid=51041, Unknown=0, NotChecked=0, Total=56406 [2018-09-14 17:18:14,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-14 17:18:14,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-14 17:18:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-14 17:18:14,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-14 17:18:14,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 436 [2018-09-14 17:18:14,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:18:14,769 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-14 17:18:14,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-14 17:18:14,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-14 17:18:14,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-14 17:18:14,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-14 17:18:15,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,612 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,639 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,640 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,657 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,698 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,705 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,718 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,916 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:15,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,155 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,282 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,682 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,708 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,813 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:16,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,017 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,151 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,572 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:17,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,087 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,159 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,266 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,453 WARN L178 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 688 DAG size of output: 457 [2018-09-14 17:18:18,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,541 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,841 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,939 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:18,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,191 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,277 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,557 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,576 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,703 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,753 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,784 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,943 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:19,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,492 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,934 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-14 17:18:20,981 WARN L178 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 688 DAG size of output: 457 [2018-09-14 17:18:21,090 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 19 [2018-09-14 17:18:24,038 WARN L178 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 386 DAG size of output: 88 [2018-09-14 17:19:36,221 WARN L178 SmtUtils]: Spent 1.20 m on a formula simplification. DAG size of input: 450 DAG size of output: 99 Received shutdown request... [2018-09-14 17:19:52,263 WARN L186 SmtUtils]: Removed 11 from assertion stack [2018-09-14 17:19:52,264 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-14 17:19:52,265 INFO L168 Benchmark]: Toolchain (without parser) took 240888.88 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-14 17:19:52,267 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-09-14 17:19:52,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 984.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-09-14 17:19:52,268 INFO L168 Benchmark]: Boogie Procedure Inliner took 173.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-14 17:19:52,269 INFO L168 Benchmark]: Boogie Preprocessor took 388.68 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 829.4 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -954.2 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2018-09-14 17:19:52,270 INFO L168 Benchmark]: RCFGBuilder took 5229.50 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 180.6 MB). Peak memory consumption was 180.6 MB. Max. memory is 7.1 GB. [2018-09-14 17:19:52,270 INFO L168 Benchmark]: TraceAbstraction took 234102.83 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-14 17:19:52,275 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 984.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 173.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 388.68 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 829.4 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -954.2 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5229.50 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 180.6 MB). Peak memory consumption was 180.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234102.83 ms. Allocated memory was 2.4 GB in the beginning and 4.1 GB in the end (delta: 1.7 GB). Free memory was 2.1 GB in the beginning and 3.1 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 111]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 450. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label47_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-19-52-288.csv Completed graceful shutdown