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/Problem15_label49_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:48:56,255 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:48:56,257 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:48:56,276 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:48:56,276 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:48:56,277 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:48:56,279 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:48:56,281 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:48:56,284 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:48:56,285 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:48:56,292 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:48:56,293 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:48:56,297 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:48:56,298 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:48:56,299 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:48:56,303 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:48:56,304 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:48:56,307 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:48:56,311 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:48:56,315 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:48:56,316 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:48:56,319 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:48:56,323 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 17:48:56,324 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 17:48:56,324 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 17:48:56,325 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 17:48:56,327 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 17:48:56,328 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 17:48:56,329 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 17:48:56,332 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 17:48:56,332 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 17:48:56,333 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 17:48:56,333 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:48:56,333 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:48:56,335 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:48:56,336 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:48:56,336 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 17:48:56,358 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:48:56,358 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:48:56,359 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:48:56,359 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:48:56,359 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:48:56,360 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:48:56,360 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:48:56,360 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:48:56,360 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:48:56,365 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:48:56,366 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:48:56,366 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:48:56,367 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:48:56,367 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:48:56,367 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:48:56,368 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:48:56,368 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:48:56,368 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:48:56,369 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:48:56,369 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:48:56,369 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:48:56,369 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:48:56,371 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:48:56,371 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:48:56,371 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:48:56,372 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:48:56,372 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:48:56,372 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:48:56,372 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:48:56,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:48:56,372 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:48:56,373 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:48:56,373 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:48:56,421 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:48:56,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:48:56,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:48:56,440 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:48:56,441 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:48:56,442 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label49_true-unreach-call.c [2018-09-14 17:48:56,818 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28c4f0695/2a18feacf98f4145b67496e28cb7c74f/FLAGc3fef0b5d [2018-09-14 17:48:57,186 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:48:57,187 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label49_true-unreach-call.c [2018-09-14 17:48:57,216 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28c4f0695/2a18feacf98f4145b67496e28cb7c74f/FLAGc3fef0b5d [2018-09-14 17:48:57,240 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28c4f0695/2a18feacf98f4145b67496e28cb7c74f [2018-09-14 17:48:57,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:48:57,261 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:48:57,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:48:57,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:48:57,272 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:48:57,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:48:57" (1/1) ... [2018-09-14 17:48:57,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674df799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:57, skipping insertion in model container [2018-09-14 17:48:57,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:48:57" (1/1) ... [2018-09-14 17:48:57,291 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:48:58,150 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:48:58,169 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:48:58,616 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:48:58,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58 WrapperNode [2018-09-14 17:48:58,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:48:58,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:48:58,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:48:58,756 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:48:58,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (1/1) ... [2018-09-14 17:48:58,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (1/1) ... [2018-09-14 17:48:59,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:48:59,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:48:59,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:48:59,001 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:48:59,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (1/1) ... [2018-09-14 17:48:59,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (1/1) ... [2018-09-14 17:48:59,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (1/1) ... [2018-09-14 17:48:59,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (1/1) ... [2018-09-14 17:48:59,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (1/1) ... [2018-09-14 17:48:59,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (1/1) ... [2018-09-14 17:48:59,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (1/1) ... [2018-09-14 17:48:59,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:48:59,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:48:59,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:48:59,643 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:48:59,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (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 17:48:59,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:48:59,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:48:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 17:48:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 17:48:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:48:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:48:59,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:48:59,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:48:59,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:48:59,720 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:49:06,908 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:49:06,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:49:06 BoogieIcfgContainer [2018-09-14 17:49:06,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:49:06,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:49:06,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:49:06,914 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:49:06,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:48:57" (1/3) ... [2018-09-14 17:49:06,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b65fb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:49:06, skipping insertion in model container [2018-09-14 17:49:06,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:48:58" (2/3) ... [2018-09-14 17:49:06,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b65fb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:49:06, skipping insertion in model container [2018-09-14 17:49:06,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:49:06" (3/3) ... [2018-09-14 17:49:06,920 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label49_true-unreach-call.c [2018-09-14 17:49:06,930 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:49:06,941 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:49:07,005 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:49:07,006 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:49:07,006 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:49:07,007 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:49:07,007 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:49:07,007 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:49:07,007 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:49:07,007 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:49:07,007 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:49:07,038 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-14 17:49:07,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-14 17:49:07,053 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:49:07,054 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:49:07,055 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:49:07,059 INFO L82 PathProgramCache]: Analyzing trace with hash -224629815, now seen corresponding path program 1 times [2018-09-14 17:49:07,062 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:49:07,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:07,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:49:07,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:07,112 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:49:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:49:07,602 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-09-14 17:49:07,649 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 17:49:07,651 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:49:07,652 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:49:07,652 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:49:07,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:49:07,694 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:49:07,695 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:49:07,699 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-09-14 17:49:14,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:49:14,944 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-09-14 17:49:14,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:49:14,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2018-09-14 17:49:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:49:14,975 INFO L225 Difference]: With dead ends: 1550 [2018-09-14 17:49:14,975 INFO L226 Difference]: Without dead ends: 1106 [2018-09-14 17:49:14,987 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:49:15,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-09-14 17:49:15,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-09-14 17:49:15,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-14 17:49:15,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-09-14 17:49:15,118 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 59 [2018-09-14 17:49:15,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:49:15,119 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-09-14 17:49:15,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:49:15,119 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-09-14 17:49:15,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-14 17:49:15,133 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:49:15,133 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, 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] [2018-09-14 17:49:15,134 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:49:15,134 INFO L82 PathProgramCache]: Analyzing trace with hash 311881044, now seen corresponding path program 1 times [2018-09-14 17:49:15,134 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:49:15,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:15,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:49:15,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:15,138 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:49:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:49:15,391 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:49:15,392 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:49:15,392 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 17:49:15,392 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:49:15,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:49:15,394 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:49:15,394 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 17:49:15,395 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 5 states. [2018-09-14 17:49:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:49:24,114 INFO L93 Difference]: Finished difference Result 2245 states and 3758 transitions. [2018-09-14 17:49:24,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 17:49:24,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2018-09-14 17:49:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:49:24,133 INFO L225 Difference]: With dead ends: 2245 [2018-09-14 17:49:24,134 INFO L226 Difference]: Without dead ends: 1489 [2018-09-14 17:49:24,139 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 17:49:24,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2018-09-14 17:49:24,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1457. [2018-09-14 17:49:24,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-09-14 17:49:24,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-09-14 17:49:24,209 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 132 [2018-09-14 17:49:24,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:49:24,210 INFO L480 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-09-14 17:49:24,210 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:49:24,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-09-14 17:49:24,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-14 17:49:24,223 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:49:24,224 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:49:24,224 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:49:24,224 INFO L82 PathProgramCache]: Analyzing trace with hash 827365732, now seen corresponding path program 1 times [2018-09-14 17:49:24,224 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:49:24,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:24,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:49:24,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:24,226 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:49:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:49:24,538 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:49:24,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:49:24,539 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:49:24,539 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:49:24,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:49:24,540 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:49:24,540 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:49:24,540 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 4 states. [2018-09-14 17:49:32,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:49:32,454 INFO L93 Difference]: Finished difference Result 5405 states and 8310 transitions. [2018-09-14 17:49:32,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:49:32,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 140 [2018-09-14 17:49:32,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:49:32,479 INFO L225 Difference]: With dead ends: 5405 [2018-09-14 17:49:32,479 INFO L226 Difference]: Without dead ends: 3954 [2018-09-14 17:49:32,492 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:49:32,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2018-09-14 17:49:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3951. [2018-09-14 17:49:32,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3951 states. [2018-09-14 17:49:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3951 states to 3951 states and 5460 transitions. [2018-09-14 17:49:32,600 INFO L78 Accepts]: Start accepts. Automaton has 3951 states and 5460 transitions. Word has length 140 [2018-09-14 17:49:32,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:49:32,601 INFO L480 AbstractCegarLoop]: Abstraction has 3951 states and 5460 transitions. [2018-09-14 17:49:32,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:49:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 5460 transitions. [2018-09-14 17:49:32,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-14 17:49:32,605 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:49:32,605 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, 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] [2018-09-14 17:49:32,606 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:49:32,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1388399790, now seen corresponding path program 1 times [2018-09-14 17:49:32,606 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:49:32,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:32,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:49:32,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:32,607 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:49:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:49:32,932 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:49:32,932 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:49:32,932 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:49:32,932 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:49:32,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:49:32,933 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:49:32,934 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:49:32,934 INFO L87 Difference]: Start difference. First operand 3951 states and 5460 transitions. Second operand 6 states. [2018-09-14 17:49:38,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:49:38,586 INFO L93 Difference]: Finished difference Result 9149 states and 12436 transitions. [2018-09-14 17:49:38,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:49:38,595 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-09-14 17:49:38,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:49:38,620 INFO L225 Difference]: With dead ends: 9149 [2018-09-14 17:49:38,620 INFO L226 Difference]: Without dead ends: 5204 [2018-09-14 17:49:38,640 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 17:49:38,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2018-09-14 17:49:38,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 5146. [2018-09-14 17:49:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5146 states. [2018-09-14 17:49:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5146 states to 5146 states and 6609 transitions. [2018-09-14 17:49:38,763 INFO L78 Accepts]: Start accepts. Automaton has 5146 states and 6609 transitions. Word has length 146 [2018-09-14 17:49:38,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:49:38,763 INFO L480 AbstractCegarLoop]: Abstraction has 5146 states and 6609 transitions. [2018-09-14 17:49:38,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:49:38,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5146 states and 6609 transitions. [2018-09-14 17:49:38,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-09-14 17:49:38,767 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:49:38,767 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, 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] [2018-09-14 17:49:38,768 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:49:38,768 INFO L82 PathProgramCache]: Analyzing trace with hash 389844774, now seen corresponding path program 1 times [2018-09-14 17:49:38,768 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:49:38,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:38,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:49:38,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:38,769 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:49:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:49:39,575 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-09-14 17:49:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:49:39,621 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:49:39,622 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 17:49:39,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:49:39,647 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:49:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:49:39,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:49:40,666 WARN L178 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2018-09-14 17:49:40,702 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:49:40,703 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:49:40,839 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2018-09-14 17:49:41,523 WARN L178 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-09-14 17:49:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:49:41,816 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:49:41,816 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 12 [2018-09-14 17:49:41,816 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:49:41,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:49:41,818 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:49:41,818 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:49:41,819 INFO L87 Difference]: Start difference. First operand 5146 states and 6609 transitions. Second operand 5 states. [2018-09-14 17:49:57,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:49:57,007 INFO L93 Difference]: Finished difference Result 13742 states and 18096 transitions. [2018-09-14 17:49:57,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:49:57,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2018-09-14 17:49:57,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:49:57,047 INFO L225 Difference]: With dead ends: 13742 [2018-09-14 17:49:57,047 INFO L226 Difference]: Without dead ends: 8602 [2018-09-14 17:49:57,077 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 352 GetRequests, 339 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-09-14 17:49:57,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8602 states. [2018-09-14 17:49:57,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8602 to 8118. [2018-09-14 17:49:57,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8118 states. [2018-09-14 17:49:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8118 states to 8118 states and 10577 transitions. [2018-09-14 17:49:57,261 INFO L78 Accepts]: Start accepts. Automaton has 8118 states and 10577 transitions. Word has length 171 [2018-09-14 17:49:57,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:49:57,261 INFO L480 AbstractCegarLoop]: Abstraction has 8118 states and 10577 transitions. [2018-09-14 17:49:57,261 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:49:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand 8118 states and 10577 transitions. [2018-09-14 17:49:57,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2018-09-14 17:49:57,267 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:49:57,268 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, 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] [2018-09-14 17:49:57,268 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:49:57,268 INFO L82 PathProgramCache]: Analyzing trace with hash 914125717, now seen corresponding path program 1 times [2018-09-14 17:49:57,269 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:49:57,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:57,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:49:57,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:49:57,270 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:49:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:49:58,072 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:49:58,072 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:49:58,072 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 17:49:58,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:49:58,089 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:49:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:49:58,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:49:58,829 WARN L178 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-09-14 17:49:58,882 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:49:58,882 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:49:59,508 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:49:59,528 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:49:59,529 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 12 [2018-09-14 17:49:59,529 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:49:59,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:49:59,529 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:49:59,530 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:49:59,530 INFO L87 Difference]: Start difference. First operand 8118 states and 10577 transitions. Second operand 5 states. [2018-09-14 17:50:13,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:50:13,585 INFO L93 Difference]: Finished difference Result 19127 states and 24944 transitions. [2018-09-14 17:50:13,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:50:13,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 204 [2018-09-14 17:50:13,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:50:13,649 INFO L225 Difference]: With dead ends: 19127 [2018-09-14 17:50:13,649 INFO L226 Difference]: Without dead ends: 11015 [2018-09-14 17:50:13,675 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 404 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-09-14 17:50:13,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11015 states. [2018-09-14 17:50:13,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11015 to 10089. [2018-09-14 17:50:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10089 states. [2018-09-14 17:50:13,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10089 states to 10089 states and 12975 transitions. [2018-09-14 17:50:13,890 INFO L78 Accepts]: Start accepts. Automaton has 10089 states and 12975 transitions. Word has length 204 [2018-09-14 17:50:13,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:50:13,891 INFO L480 AbstractCegarLoop]: Abstraction has 10089 states and 12975 transitions. [2018-09-14 17:50:13,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:50:13,891 INFO L276 IsEmpty]: Start isEmpty. Operand 10089 states and 12975 transitions. [2018-09-14 17:50:13,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2018-09-14 17:50:13,898 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:50:13,898 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, 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, 1, 1, 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 17:50:13,898 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:50:13,899 INFO L82 PathProgramCache]: Analyzing trace with hash -34095748, now seen corresponding path program 1 times [2018-09-14 17:50:13,899 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:50:13,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:50:13,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:50:13,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:50:13,900 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:50:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:50:14,913 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-14 17:50:15,195 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-14 17:50:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:50:15,371 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:50:15,371 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 17:50:15,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:50:15,379 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:50:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:50:15,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:50:16,086 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 159 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:50:16,087 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:50:16,561 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 109 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:50:16,581 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:50:16,581 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 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:50:16,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:50:16,605 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:50:16,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:50:16,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:50:17,101 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 109 proven. 41 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-09-14 17:50:17,102 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:50:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 109 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:50:17,563 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:50:17,563 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 8, 9] total 24 [2018-09-14 17:50:17,563 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:50:17,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-14 17:50:17,565 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-14 17:50:17,565 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2018-09-14 17:50:17,565 INFO L87 Difference]: Start difference. First operand 10089 states and 12975 transitions. Second operand 14 states. [2018-09-14 17:50:43,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:50:43,415 INFO L93 Difference]: Finished difference Result 28623 states and 37355 transitions. [2018-09-14 17:50:43,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-14 17:50:43,415 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 267 [2018-09-14 17:50:43,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:50:43,472 INFO L225 Difference]: With dead ends: 28623 [2018-09-14 17:50:43,472 INFO L226 Difference]: Without dead ends: 17975 [2018-09-14 17:50:43,501 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 1054 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=527, Invalid=1729, Unknown=0, NotChecked=0, Total=2256 [2018-09-14 17:50:43,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17975 states. [2018-09-14 17:50:43,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17975 to 15833. [2018-09-14 17:50:43,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15833 states. [2018-09-14 17:50:43,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15833 states to 15833 states and 20350 transitions. [2018-09-14 17:50:43,986 INFO L78 Accepts]: Start accepts. Automaton has 15833 states and 20350 transitions. Word has length 267 [2018-09-14 17:50:43,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:50:43,986 INFO L480 AbstractCegarLoop]: Abstraction has 15833 states and 20350 transitions. [2018-09-14 17:50:43,986 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-14 17:50:43,987 INFO L276 IsEmpty]: Start isEmpty. Operand 15833 states and 20350 transitions. [2018-09-14 17:50:43,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2018-09-14 17:50:43,998 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:50:43,998 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:50:43,999 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:50:43,999 INFO L82 PathProgramCache]: Analyzing trace with hash 619832033, now seen corresponding path program 1 times [2018-09-14 17:50:43,999 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:50:44,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:50:44,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:50:44,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:50:44,000 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:50:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:50:44,897 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:50:44,897 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:50:44,897 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:50:44,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:50:44,910 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:50:45,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:50:45,015 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:50:45,315 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 159 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:50:45,315 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:50:45,885 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 109 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:50:45,906 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:50:45,906 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 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:50:45,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:50:45,922 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:50:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:50:46,155 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:50:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 109 proven. 57 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-09-14 17:50:46,660 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:50:47,265 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 109 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:50:47,267 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:50:47,267 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 8, 9] total 24 [2018-09-14 17:50:47,268 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:50:47,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-14 17:50:47,270 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-14 17:50:47,270 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2018-09-14 17:50:47,271 INFO L87 Difference]: Start difference. First operand 15833 states and 20350 transitions. Second operand 14 states. [2018-09-14 17:51:16,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:51:16,922 INFO L93 Difference]: Finished difference Result 34940 states and 45021 transitions. [2018-09-14 17:51:16,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-14 17:51:16,922 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 352 [2018-09-14 17:51:16,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:51:16,968 INFO L225 Difference]: With dead ends: 34940 [2018-09-14 17:51:16,968 INFO L226 Difference]: Without dead ends: 18550 [2018-09-14 17:51:16,997 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1442 GetRequests, 1391 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=524, Invalid=1732, Unknown=0, NotChecked=0, Total=2256 [2018-09-14 17:51:17,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18550 states. [2018-09-14 17:51:17,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18550 to 15827. [2018-09-14 17:51:17,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15827 states. [2018-09-14 17:51:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15827 states to 15827 states and 20126 transitions. [2018-09-14 17:51:17,271 INFO L78 Accepts]: Start accepts. Automaton has 15827 states and 20126 transitions. Word has length 352 [2018-09-14 17:51:17,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:51:17,272 INFO L480 AbstractCegarLoop]: Abstraction has 15827 states and 20126 transitions. [2018-09-14 17:51:17,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-14 17:51:17,272 INFO L276 IsEmpty]: Start isEmpty. Operand 15827 states and 20126 transitions. [2018-09-14 17:51:17,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2018-09-14 17:51:17,284 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:51:17,285 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:17,285 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:51:17,285 INFO L82 PathProgramCache]: Analyzing trace with hash -983934839, now seen corresponding path program 1 times [2018-09-14 17:51:17,285 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:51:17,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:51:17,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:51:17,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:51:17,287 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:51:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:51:18,069 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 55 proven. 155 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-14 17:51:18,069 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:51:18,069 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 17:51:18,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:51:18,078 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:51:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:51:18,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:51:18,327 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:51:18,327 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:51:18,750 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 214 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:51:18,771 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:51:18,771 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 17:51:18,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:51:18,786 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:51:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:51:19,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:51:19,331 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-14 17:51:19,332 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:51:20,042 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-14 17:51:20,044 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-14 17:51:20,044 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5, 5, 5] total 17 [2018-09-14 17:51:20,044 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:51:20,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:51:20,046 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:51:20,046 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2018-09-14 17:51:20,047 INFO L87 Difference]: Start difference. First operand 15827 states and 20126 transitions. Second operand 5 states. [2018-09-14 17:51:26,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:51:26,007 INFO L93 Difference]: Finished difference Result 39275 states and 51269 transitions. [2018-09-14 17:51:26,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:51:26,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 409 [2018-09-14 17:51:26,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:51:26,069 INFO L225 Difference]: With dead ends: 39275 [2018-09-14 17:51:26,070 INFO L226 Difference]: Without dead ends: 23765 [2018-09-14 17:51:26,105 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1647 GetRequests, 1628 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2018-09-14 17:51:26,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23765 states. [2018-09-14 17:51:26,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23765 to 22292. [2018-09-14 17:51:26,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22292 states. [2018-09-14 17:51:26,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22292 states to 22292 states and 28352 transitions. [2018-09-14 17:51:26,504 INFO L78 Accepts]: Start accepts. Automaton has 22292 states and 28352 transitions. Word has length 409 [2018-09-14 17:51:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:51:26,505 INFO L480 AbstractCegarLoop]: Abstraction has 22292 states and 28352 transitions. [2018-09-14 17:51:26,505 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:51:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 22292 states and 28352 transitions. [2018-09-14 17:51:26,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2018-09-14 17:51:26,530 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:51:26,530 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:26,531 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:51:26,531 INFO L82 PathProgramCache]: Analyzing trace with hash 340042386, now seen corresponding path program 1 times [2018-09-14 17:51:26,531 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:51:26,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:51:26,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:51:26,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:51:26,532 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:51:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:51:27,237 WARN L178 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 8 [2018-09-14 17:51:28,063 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 109 proven. 131 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-14 17:51:28,064 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:51:28,064 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 17:51:28,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:51:28,072 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:51:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:51:28,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:51:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 247 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:51:28,552 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:51:28,944 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 247 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:51:28,965 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:51:28,966 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 17:51:28,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:51:28,981 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:51:29,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:51:29,253 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:51:29,429 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 105 proven. 2 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-09-14 17:51:29,429 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:51:30,116 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2018-09-14 17:51:30,118 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-14 17:51:30,119 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 5, 5, 5] total 17 [2018-09-14 17:51:30,119 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:51:30,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 17:51:30,122 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 17:51:30,122 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2018-09-14 17:51:30,123 INFO L87 Difference]: Start difference. First operand 22292 states and 28352 transitions. Second operand 5 states. [2018-09-14 17:51:37,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:51:37,392 INFO L93 Difference]: Finished difference Result 48114 states and 62054 transitions. [2018-09-14 17:51:37,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 17:51:37,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 442 [2018-09-14 17:51:37,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:51:37,451 INFO L225 Difference]: With dead ends: 48114 [2018-09-14 17:51:37,451 INFO L226 Difference]: Without dead ends: 26139 [2018-09-14 17:51:37,494 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1781 GetRequests, 1754 SyntacticMatches, 11 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-09-14 17:51:37,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26139 states. [2018-09-14 17:51:37,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26139 to 25817. [2018-09-14 17:51:37,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25817 states. [2018-09-14 17:51:37,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25817 states to 25817 states and 31140 transitions. [2018-09-14 17:51:37,911 INFO L78 Accepts]: Start accepts. Automaton has 25817 states and 31140 transitions. Word has length 442 [2018-09-14 17:51:37,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:51:37,912 INFO L480 AbstractCegarLoop]: Abstraction has 25817 states and 31140 transitions. [2018-09-14 17:51:37,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 17:51:37,912 INFO L276 IsEmpty]: Start isEmpty. Operand 25817 states and 31140 transitions. [2018-09-14 17:51:37,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2018-09-14 17:51:37,927 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:51:37,928 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:51:37,928 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:51:37,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1825072665, now seen corresponding path program 1 times [2018-09-14 17:51:37,929 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:51:37,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:51:37,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:51:37,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:51:37,930 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:51:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:51:38,700 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 55 proven. 155 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-14 17:51:38,700 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:51:38,700 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 17:51:38,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:51:38,709 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:51:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:51:38,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:51:53,220 WARN L178 SmtUtils]: Spent 13.83 s on a formula simplification. DAG size of input: 116 DAG size of output: 50 [2018-09-14 17:51:53,545 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 161 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:51:53,546 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:51:53,998 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 161 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:51:54,020 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:51:54,020 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 17:51:54,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:51:54,035 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:51:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:51:54,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:52:18,760 WARN L178 SmtUtils]: Spent 24.12 s on a formula simplification that was a NOOP. DAG size: 59 [2018-09-14 17:52:21,229 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 105 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:52:21,230 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:52:21,619 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-09-14 17:52:28,303 WARN L178 SmtUtils]: Spent 6.58 s on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2018-09-14 17:52:28,619 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-14 17:52:28,622 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:30,700 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-09-14 17:52:47,499 WARN L178 SmtUtils]: Spent 14.65 s on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-09-14 17:52:47,502 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,508 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,524 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,530 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,538 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,551 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,558 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,563 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,572 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,580 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,586 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,592 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,598 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,603 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,609 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,614 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,620 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,625 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,630 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,636 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,642 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,651 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,657 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,662 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,668 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,674 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,680 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,686 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,693 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,698 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,704 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,709 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,715 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,720 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,725 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,731 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,736 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,742 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,747 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,752 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,757 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,762 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,768 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,774 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,779 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,784 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,790 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,795 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,800 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,806 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,811 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,817 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,823 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,829 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,834 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,840 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,846 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,851 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,857 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,863 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,869 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,875 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,881 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,886 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,892 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,898 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,904 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,909 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,915 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,926 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,932 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,938 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,943 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,949 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,955 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,961 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,966 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,972 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,977 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,983 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,989 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:47,994 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,000 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,006 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,011 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,017 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,023 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,028 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,034 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,040 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,046 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,052 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,058 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,063 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,069 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,075 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,080 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,086 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,091 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,097 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,103 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,108 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,114 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,119 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,125 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,131 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,136 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,142 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,147 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,153 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,159 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,164 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,170 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,177 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,184 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,189 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,195 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,201 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,206 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,212 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,219 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,224 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,230 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,235 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,241 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,247 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,252 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,257 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,263 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,269 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,274 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,280 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,285 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,291 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,296 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,302 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,308 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,313 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,319 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,324 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,330 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,336 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,341 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,346 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,353 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,359 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,364 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,370 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,379 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,385 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,390 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,395 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,401 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,408 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,413 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,419 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,424 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,429 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,435 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,440 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,446 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,451 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,456 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,462 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,467 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,472 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,478 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,483 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,489 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,495 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,500 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,506 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,511 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,516 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,522 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,527 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,532 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,538 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,549 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,555 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,561 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,566 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,572 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,577 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,583 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,588 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,593 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,599 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,604 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,610 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,615 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,620 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,626 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,631 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,636 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,642 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,647 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,653 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,658 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,664 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,669 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,674 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,680 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,685 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,691 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,696 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,702 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,707 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,713 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,718 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,723 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,729 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,735 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,740 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,746 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,752 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,758 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,763 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,769 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,775 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,780 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,785 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,790 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,795 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,800 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,806 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,811 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,816 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,821 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,827 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,832 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,838 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,845 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,850 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,855 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,860 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,865 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,870 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,875 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,880 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,885 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,890 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,894 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,900 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,905 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,911 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,916 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,926 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,932 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,937 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,943 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,948 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,954 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,960 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,965 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,969 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,974 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,979 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,985 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,989 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:48,995 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:49,000 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:49,006 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-14 17:52:52,022 WARN L178 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-09-14 17:52:59,538 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 105 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:52:59,540 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:52:59,541 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6, 9, 10] total 29 [2018-09-14 17:52:59,541 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:52:59,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-14 17:52:59,542 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-14 17:52:59,542 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=707, Unknown=5, NotChecked=0, Total=812 [2018-09-14 17:52:59,543 INFO L87 Difference]: Start difference. First operand 25817 states and 31140 transitions. Second operand 12 states. [2018-09-14 17:53:08,941 WARN L178 SmtUtils]: Spent 6.30 s on a formula simplification that was a NOOP. DAG size: 59 Received shutdown request... [2018-09-14 17:53:10,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-14 17:53:10,067 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:53:10,073 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:53:10,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:53:10 BoogieIcfgContainer [2018-09-14 17:53:10,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:53:10,076 INFO L168 Benchmark]: Toolchain (without parser) took 252820.41 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.6 GB). Peak memory consumption was 591.8 MB. Max. memory is 7.1 GB. [2018-09-14 17:53:10,078 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 17:53:10,079 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1492.61 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-14 17:53:10,079 INFO L168 Benchmark]: Boogie Procedure Inliner took 244.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-09-14 17:53:10,080 INFO L168 Benchmark]: Boogie Preprocessor took 642.12 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 899.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-14 17:53:10,081 INFO L168 Benchmark]: RCFGBuilder took 7267.18 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: 291.8 MB). Peak memory consumption was 291.8 MB. Max. memory is 7.1 GB. [2018-09-14 17:53:10,082 INFO L168 Benchmark]: TraceAbstraction took 243164.00 ms. Allocated memory was 2.4 GB in the beginning and 3.8 GB in the end (delta: 1.3 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 315.8 MB. Max. memory is 7.1 GB. [2018-09-14 17:53:10,087 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1492.61 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 244.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 642.12 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 899.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7267.18 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: 291.8 MB). Peak memory consumption was 291.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 243164.00 ms. Allocated memory was 2.4 GB in the beginning and 3.8 GB in the end (delta: 1.3 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 315.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 163]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 163). Cancelled while BasicCegarLoop was constructing difference of abstraction (25817states) and FLOYD_HOARE automaton (currently 12 states, 12 states before enhancement), while ReachableStatesComputation was computing reachable states (3050 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 243.0s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 138.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3024 SDtfs, 21563 SDslu, 3151 SDs, 0 SdLazy, 40989 SolverSat, 6075 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 117.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8582 GetRequests, 8351 SyntacticMatches, 29 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1785 ImplicationChecksByTransitivity, 91.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25817occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 8507 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 97.2s InterpolantComputationTime, 6975 NumberOfCodeBlocks, 6975 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 11147 ConstructedInterpolants, 342 QuantifiedInterpolants, 49830739 SizeOfPredicates, 42 NumberOfNonLiveVariables, 6305 ConjunctsInSsa, 180 ConjunctsInUnsatCore, 35 InterpolantComputations, 10 PerfectInterpolantSequences, 4468/5953 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label49_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-53-10-101.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label49_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-53-10-101.csv Completed graceful shutdown