java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label29_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 17:03:01,232 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 17:03:01,236 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 17:03:01,251 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 17:03:01,251 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 17:03:01,252 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 17:03:01,254 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 17:03:01,256 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 17:03:01,257 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 17:03:01,258 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 17:03:01,259 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 17:03:01,260 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 17:03:01,260 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 17:03:01,261 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 17:03:01,263 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 17:03:01,263 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 17:03:01,264 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 17:03:01,266 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 17:03:01,268 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 17:03:01,270 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 17:03:01,271 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 17:03:01,273 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 17:03:01,275 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 17:03:01,275 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 17:03:01,275 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 17:03:01,276 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 17:03:01,277 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 17:03:01,278 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 17:03:01,279 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 17:03:01,280 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 17:03:01,280 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 17:03:01,281 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-12 17:03:01,283 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 17:03:01,301 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 17:03:01,301 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 17:03:01,304 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 17:03:01,304 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 17:03:01,305 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 17:03:01,305 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 17:03:01,305 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 17:03:01,305 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 17:03:01,305 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 17:03:01,306 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 17:03:01,306 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 17:03:01,306 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 17:03:01,306 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 17:03:01,307 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 17:03:01,307 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 17:03:01,307 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 17:03:01,307 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 17:03:01,308 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 17:03:01,308 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 17:03:01,308 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 17:03:01,308 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 17:03:01,308 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 17:03:01,309 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 17:03:01,309 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 17:03:01,309 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 17:03:01,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 17:03:01,309 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 17:03:01,310 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 17:03:01,310 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 17:03:01,310 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 17:03:01,310 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 17:03:01,310 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 17:03:01,311 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 17:03:01,311 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 17:03:01,311 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 17:03:01,366 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 17:03:01,382 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 17:03:01,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 17:03:01,389 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 17:03:01,390 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 17:03:01,390 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label29_false-unreach-call.c [2018-11-12 17:03:01,459 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5db10eaec/7d138899f92745ef80d34beb93cbad8a/FLAG0a7c09542 [2018-11-12 17:03:02,349 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 17:03:02,349 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label29_false-unreach-call.c [2018-11-12 17:03:02,395 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5db10eaec/7d138899f92745ef80d34beb93cbad8a/FLAG0a7c09542 [2018-11-12 17:03:02,411 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5db10eaec/7d138899f92745ef80d34beb93cbad8a [2018-11-12 17:03:02,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 17:03:02,427 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 17:03:02,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 17:03:02,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 17:03:02,434 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 17:03:02,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:03:02" (1/1) ... [2018-11-12 17:03:02,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b263854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:02, skipping insertion in model container [2018-11-12 17:03:02,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:03:02" (1/1) ... [2018-11-12 17:03:02,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 17:03:02,732 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 17:03:04,843 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 17:03:04,848 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 17:03:05,931 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 17:03:05,985 INFO L193 MainTranslator]: Completed translation [2018-11-12 17:03:05,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05 WrapperNode [2018-11-12 17:03:05,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 17:03:05,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 17:03:05,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 17:03:05,988 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 17:03:05,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (1/1) ... [2018-11-12 17:03:06,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (1/1) ... [2018-11-12 17:03:06,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 17:03:06,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 17:03:06,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 17:03:06,536 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 17:03:06,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (1/1) ... [2018-11-12 17:03:06,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (1/1) ... [2018-11-12 17:03:06,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (1/1) ... [2018-11-12 17:03:06,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (1/1) ... [2018-11-12 17:03:06,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (1/1) ... [2018-11-12 17:03:06,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (1/1) ... [2018-11-12 17:03:06,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (1/1) ... [2018-11-12 17:03:06,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 17:03:06,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 17:03:06,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 17:03:06,947 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 17:03:06,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 17:03:07,013 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 17:03:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 17:03:07,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 17:03:07,014 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-12 17:03:07,014 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-12 17:03:07,015 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-12 17:03:07,015 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-12 17:03:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 17:03:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 17:03:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 17:03:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 17:03:07,016 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 17:03:07,016 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 17:03:07,017 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 17:03:07,017 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 17:03:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 17:03:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 17:03:07,018 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 17:03:07,018 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 17:03:21,956 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 17:03:21,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:03:21 BoogieIcfgContainer [2018-11-12 17:03:21,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 17:03:21,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 17:03:21,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 17:03:21,962 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 17:03:21,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:03:02" (1/3) ... [2018-11-12 17:03:21,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f90691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:03:21, skipping insertion in model container [2018-11-12 17:03:21,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:03:05" (2/3) ... [2018-11-12 17:03:21,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f90691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:03:21, skipping insertion in model container [2018-11-12 17:03:21,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:03:21" (3/3) ... [2018-11-12 17:03:21,966 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label29_false-unreach-call.c [2018-11-12 17:03:21,976 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 17:03:21,987 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 17:03:22,005 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 17:03:22,058 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 17:03:22,058 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 17:03:22,058 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 17:03:22,058 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 17:03:22,058 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 17:03:22,059 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 17:03:22,059 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 17:03:22,059 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 17:03:22,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-12 17:03:22,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-12 17:03:22,131 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:03:22,133 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:03:22,135 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:03:22,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:03:22,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1784258372, now seen corresponding path program 1 times [2018-11-12 17:03:22,143 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:03:22,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:22,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:03:22,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:22,198 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:03:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:03:22,576 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 17:03:22,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:03:22,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:03:22,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 17:03:22,687 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:03:22,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 17:03:22,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 17:03:22,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 17:03:22,715 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-12 17:03:35,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:03:35,695 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-11-12 17:03:35,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 17:03:35,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-11-12 17:03:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:03:35,744 INFO L225 Difference]: With dead ends: 4999 [2018-11-12 17:03:35,745 INFO L226 Difference]: Without dead ends: 3219 [2018-11-12 17:03:35,757 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 17:03:35,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-11-12 17:03:35,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-11-12 17:03:35,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-11-12 17:03:35,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-11-12 17:03:35,949 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 28 [2018-11-12 17:03:35,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:03:35,949 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-11-12 17:03:35,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 17:03:35,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-11-12 17:03:35,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-11-12 17:03:35,956 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:03:35,956 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:03:35,956 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:03:35,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:03:35,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1452383789, now seen corresponding path program 1 times [2018-11-12 17:03:35,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:03:35,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:35,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:03:35,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:35,959 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:03:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:03:36,347 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 17:03:36,720 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:03:36,721 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:03:36,721 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 17:03:36,721 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:03:36,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 17:03:36,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 17:03:36,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 17:03:36,725 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-11-12 17:03:58,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:03:58,689 INFO L93 Difference]: Finished difference Result 9331 states and 16910 transitions. [2018-11-12 17:03:58,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 17:03:58,694 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-11-12 17:03:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:03:58,728 INFO L225 Difference]: With dead ends: 9331 [2018-11-12 17:03:58,729 INFO L226 Difference]: Without dead ends: 6122 [2018-11-12 17:03:58,740 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 17:03:58,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2018-11-12 17:03:58,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6084. [2018-11-12 17:03:58,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6084 states. [2018-11-12 17:03:58,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 9616 transitions. [2018-11-12 17:03:58,893 INFO L78 Accepts]: Start accepts. Automaton has 6084 states and 9616 transitions. Word has length 100 [2018-11-12 17:03:58,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:03:58,894 INFO L480 AbstractCegarLoop]: Abstraction has 6084 states and 9616 transitions. [2018-11-12 17:03:58,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 17:03:58,894 INFO L276 IsEmpty]: Start isEmpty. Operand 6084 states and 9616 transitions. [2018-11-12 17:03:58,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-12 17:03:58,898 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:03:58,898 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:03:58,898 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:03:58,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:03:58,899 INFO L82 PathProgramCache]: Analyzing trace with hash 299475857, now seen corresponding path program 1 times [2018-11-12 17:03:58,899 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:03:58,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:58,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:03:58,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:03:58,901 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:03:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:03:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:03:59,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:03:59,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 17:03:59,192 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:03:59,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 17:03:59,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 17:03:59,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-12 17:03:59,194 INFO L87 Difference]: Start difference. First operand 6084 states and 9616 transitions. Second operand 6 states. [2018-11-12 17:04:26,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:04:26,957 INFO L93 Difference]: Finished difference Result 24224 states and 39667 transitions. [2018-11-12 17:04:26,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 17:04:26,959 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2018-11-12 17:04:26,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:04:27,065 INFO L225 Difference]: With dead ends: 24224 [2018-11-12 17:04:27,065 INFO L226 Difference]: Without dead ends: 18146 [2018-11-12 17:04:27,104 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 17:04:27,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18146 states. [2018-11-12 17:04:27,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18146 to 18069. [2018-11-12 17:04:27,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18069 states. [2018-11-12 17:04:27,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18069 states to 18069 states and 25591 transitions. [2018-11-12 17:04:27,585 INFO L78 Accepts]: Start accepts. Automaton has 18069 states and 25591 transitions. Word has length 118 [2018-11-12 17:04:27,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:04:27,586 INFO L480 AbstractCegarLoop]: Abstraction has 18069 states and 25591 transitions. [2018-11-12 17:04:27,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 17:04:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 18069 states and 25591 transitions. [2018-11-12 17:04:27,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-11-12 17:04:27,592 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:04:27,593 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:04:27,593 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:04:27,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:04:27,593 INFO L82 PathProgramCache]: Analyzing trace with hash -483353840, now seen corresponding path program 1 times [2018-11-12 17:04:27,593 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:04:27,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:27,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:04:27,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:27,595 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:04:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:04:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 17:04:27,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 17:04:27,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-12 17:04:27,971 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:04:27,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-12 17:04:27,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-12 17:04:27,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-12 17:04:27,974 INFO L87 Difference]: Start difference. First operand 18069 states and 25591 transitions. Second operand 5 states. [2018-11-12 17:04:44,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:04:44,971 INFO L93 Difference]: Finished difference Result 56169 states and 84489 transitions. [2018-11-12 17:04:44,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 17:04:44,973 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 163 [2018-11-12 17:04:44,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:04:45,139 INFO L225 Difference]: With dead ends: 56169 [2018-11-12 17:04:45,139 INFO L226 Difference]: Without dead ends: 38106 [2018-11-12 17:04:45,204 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-12 17:04:45,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38106 states. [2018-11-12 17:04:46,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38106 to 36975. [2018-11-12 17:04:46,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36975 states. [2018-11-12 17:04:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36975 states to 36975 states and 49836 transitions. [2018-11-12 17:04:46,175 INFO L78 Accepts]: Start accepts. Automaton has 36975 states and 49836 transitions. Word has length 163 [2018-11-12 17:04:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:04:46,176 INFO L480 AbstractCegarLoop]: Abstraction has 36975 states and 49836 transitions. [2018-11-12 17:04:46,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-12 17:04:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 36975 states and 49836 transitions. [2018-11-12 17:04:46,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-11-12 17:04:46,182 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:04:46,186 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 17:04:46,186 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:04:46,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:04:46,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1157490002, now seen corresponding path program 1 times [2018-11-12 17:04:46,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:04:46,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:46,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:04:46,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:04:46,188 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:04:46,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:04:46,737 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 42 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 17:04:46,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:04:46,737 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:04:46,738 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-11-12 17:04:46,741 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5350], [5352], [5355], [5363], [5371], [5379], [5387], [5395], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5745], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5781], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-12 17:04:46,802 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:04:46,803 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:04:47,333 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:04:47,334 INFO L272 AbstractInterpreter]: Visited 87 different actions 87 times. Never merged. Never widened. Performed 797 root evaluator evaluations with a maximum evaluation depth of 3. Performed 797 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 17:04:47,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:04:47,383 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:04:47,824 INFO L227 lantSequenceWeakener]: Weakened 174 states. On average, predicates are now at 75.14% of their original sizes. [2018-11-12 17:04:47,825 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:04:47,998 INFO L415 sIntCurrentIteration]: We unified 182 AI predicates to 182 [2018-11-12 17:04:47,998 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:04:47,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:04:47,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-12 17:04:48,000 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:04:48,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-12 17:04:48,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-12 17:04:48,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-12 17:04:48,001 INFO L87 Difference]: Start difference. First operand 36975 states and 49836 transitions. Second operand 7 states. [2018-11-12 17:04:53,891 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 17:05:35,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 17:05:35,632 INFO L93 Difference]: Finished difference Result 75336 states and 101262 transitions. [2018-11-12 17:05:35,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 17:05:35,632 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2018-11-12 17:05:35,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 17:05:35,740 INFO L225 Difference]: With dead ends: 75336 [2018-11-12 17:05:35,740 INFO L226 Difference]: Without dead ends: 38367 [2018-11-12 17:05:35,808 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-12 17:05:35,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38367 states. [2018-11-12 17:05:36,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38367 to 38365. [2018-11-12 17:05:36,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38365 states. [2018-11-12 17:05:38,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38365 states to 38365 states and 51242 transitions. [2018-11-12 17:05:38,071 INFO L78 Accepts]: Start accepts. Automaton has 38365 states and 51242 transitions. Word has length 183 [2018-11-12 17:05:38,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 17:05:38,073 INFO L480 AbstractCegarLoop]: Abstraction has 38365 states and 51242 transitions. [2018-11-12 17:05:38,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-12 17:05:38,073 INFO L276 IsEmpty]: Start isEmpty. Operand 38365 states and 51242 transitions. [2018-11-12 17:05:38,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2018-11-12 17:05:38,087 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 17:05:38,088 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 17:05:38,088 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 17:05:38,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:05:38,089 INFO L82 PathProgramCache]: Analyzing trace with hash -886926961, now seen corresponding path program 1 times [2018-11-12 17:05:38,089 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 17:05:38,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:05:38,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 17:05:38,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 17:05:38,091 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 17:05:38,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 17:05:38,810 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 69 proven. 138 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-12 17:05:38,811 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 17:05:38,811 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 17:05:38,811 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 424 with the following transitions: [2018-11-12 17:05:38,812 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5350], [5352], [5355], [5363], [5371], [5379], [5387], [5395], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5745], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5781], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6560], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-12 17:05:38,822 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 17:05:38,822 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 17:05:39,910 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 17:05:39,919 INFO L272 AbstractInterpreter]: Visited 249 different actions 494 times. Merged at 5 different actions 7 times. Never widened. Performed 11926 root evaluator evaluations with a maximum evaluation depth of 6. Performed 11926 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 17:05:39,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 17:05:39,953 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 17:05:41,377 INFO L227 lantSequenceWeakener]: Weakened 123 states. On average, predicates are now at 75.63% of their original sizes. [2018-11-12 17:05:41,378 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 17:05:43,279 INFO L415 sIntCurrentIteration]: We unified 422 AI predicates to 422 [2018-11-12 17:05:43,279 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 17:05:43,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 17:05:43,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [30] imperfect sequences [5] total 33 [2018-11-12 17:05:43,280 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 17:05:43,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-11-12 17:05:43,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-11-12 17:05:43,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870 [2018-11-12 17:05:43,282 INFO L87 Difference]: Start difference. First operand 38365 states and 51242 transitions. Second operand 30 states. [2018-11-12 17:06:07,458 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 17:06:39,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-12 17:06:39,507 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 17:06:39,512 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 17:06:39,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 05:06:39 BoogieIcfgContainer [2018-11-12 17:06:39,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 17:06:39,514 INFO L168 Benchmark]: Toolchain (without parser) took 217087.22 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 4.1 GB in the end (delta: -2.7 GB). Peak memory consumption was 727.6 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:39,515 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 17:06:39,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3558.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 984.9 MB in the end (delta: 401.6 MB). Peak memory consumption was 401.6 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:39,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 547.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 835.7 MB). Free memory was 984.9 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:39,518 INFO L168 Benchmark]: Boogie Preprocessor took 410.86 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:39,519 INFO L168 Benchmark]: RCFGBuilder took 15010.71 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 166.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 475.8 MB). Peak memory consumption was 668.2 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:39,520 INFO L168 Benchmark]: TraceAbstraction took 197554.68 ms. Allocated memory was 2.5 GB in the beginning and 4.9 GB in the end (delta: 2.4 GB). Free memory was 1.7 GB in the beginning and 4.1 GB in the end (delta: -2.3 GB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. [2018-11-12 17:06:39,526 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3558.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 984.9 MB in the end (delta: 401.6 MB). Peak memory consumption was 401.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 547.61 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 835.7 MB). Free memory was 984.9 MB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 99.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 410.86 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15010.71 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 166.7 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 475.8 MB). Peak memory consumption was 668.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197554.68 ms. Allocated memory was 2.5 GB in the beginning and 4.9 GB in the end (delta: 2.4 GB). Free memory was 1.7 GB in the beginning and 4.1 GB in the end (delta: -2.3 GB). Peak memory consumption was 63.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 79). Cancelled while BasicCegarLoop was constructing difference of abstraction (38365states) and FLOYD_HOARE automaton (currently 22 states, 30 states before enhancement),while ReachableStatesComputation was computing reachable states (12751 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 197.4s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 184.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4548 SDtfs, 32574 SDslu, 3612 SDs, 0 SdLazy, 51488 SolverSat, 10045 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 101.9s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 653 GetRequests, 581 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38365occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9976285457512061 AbsIntWeakeningRatio, 0.09933774834437085 AbsIntAvgWeakeningVarsNumRemoved, 9.480132450331126 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 1252 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1015 NumberOfCodeBlocks, 1015 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1009 ConstructedInterpolants, 0 QuantifiedInterpolants, 837860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 263/469 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown