java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec1_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:07:05,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:07:05,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:07:05,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:07:05,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:07:05,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:07:05,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:07:05,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:07:05,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:07:05,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:07:05,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:07:05,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:07:05,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:07:05,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:07:05,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:07:05,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:07:05,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:07:05,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:07:05,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:07:05,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:07:05,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:07:05,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:07:05,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:07:05,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:07:05,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:07:05,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:07:05,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:07:05,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:07:05,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:07:05,354 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:07:05,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:07:05,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:07:05,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:07:05,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:07:05,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:07:05,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:07:05,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:07:05,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:07:05,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:07:05,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:07:05,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:07:05,364 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:07:05,402 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:07:05,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:07:05,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:07:05,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:07:05,407 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:07:05,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:07:05,408 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:07:05,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:07:05,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:07:05,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:07:05,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:07:05,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:07:05,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:07:05,411 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:07:05,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:07:05,412 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:07:05,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:07:05,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:07:05,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:07:05,414 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:07:05,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:07:05,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:07:05,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:07:05,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:07:05,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:07:05,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:07:05,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:07:05,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:07:05,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:07:05,759 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:07:05,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:07:05,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:07:05,782 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:07:05,783 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:07:05,784 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product19.cil.c [2019-10-15 03:07:05,865 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01779a589/11323eb5c8de4d0abd1cd0681ba7c3a6/FLAGf5c22cbb2 [2019-10-15 03:07:06,740 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:07:06,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product19.cil.c [2019-10-15 03:07:06,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01779a589/11323eb5c8de4d0abd1cd0681ba7c3a6/FLAGf5c22cbb2 [2019-10-15 03:07:06,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01779a589/11323eb5c8de4d0abd1cd0681ba7c3a6 [2019-10-15 03:07:06,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:07:06,865 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:07:06,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:06,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:07:06,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:07:06,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:06" (1/1) ... [2019-10-15 03:07:06,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a899d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:06, skipping insertion in model container [2019-10-15 03:07:06,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:07:06" (1/1) ... [2019-10-15 03:07:06,882 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:07:06,976 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:07:07,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:07,802 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:07:07,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:07:08,035 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:07:08,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:08 WrapperNode [2019-10-15 03:07:08,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:07:08,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:07:08,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:07:08,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:07:08,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:08" (1/1) ... [2019-10-15 03:07:08,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:08" (1/1) ... [2019-10-15 03:07:08,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:08" (1/1) ... [2019-10-15 03:07:08,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:08" (1/1) ... [2019-10-15 03:07:08,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:08" (1/1) ... [2019-10-15 03:07:08,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:08" (1/1) ... [2019-10-15 03:07:08,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:08" (1/1) ... [2019-10-15 03:07:08,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:07:08,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:07:08,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:07:08,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:07:08,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:08" (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 [2019-10-15 03:07:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:07:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:07:08,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:07:08,375 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:07:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:07:08,376 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:07:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:07:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:07:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:07:08,377 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:07:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:07:08,378 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:07:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:07:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:07:08,379 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:07:08,381 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:07:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:07:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:07:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:07:08,382 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:07:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:07:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:07:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:07:08,383 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:07:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:07:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:07:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:07:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:07:08,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:07:08,385 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:07:08,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:07:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:07:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:07:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:07:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:07:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:07:08,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-15 03:07:08,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-15 03:07:08,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-15 03:07:08,387 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:07:08,387 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:07:08,388 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:07:08,388 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-15 03:07:08,388 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:07:08,388 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-15 03:07:08,388 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:07:08,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:07:08,389 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:07:08,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:07:08,389 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:07:08,389 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:07:08,389 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:07:08,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:07:08,390 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:07:08,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:07:08,390 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-15 03:07:08,391 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:07:08,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:07:08,392 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:07:08,392 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-15 03:07:08,392 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:08,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:07:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:07:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:07:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:07:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:07:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-15 03:07:08,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-15 03:07:08,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:07:08,394 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:07:08,394 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:07:08,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:08,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:08,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:08,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:07:08,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:07:08,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:07:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:07:08,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:07:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:07:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:07:08,398 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:07:08,399 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:07:08,399 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:07:08,399 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:07:08,399 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:07:08,400 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:07:08,400 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:07:08,400 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:07:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:07:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:07:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:07:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:07:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:07:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-15 03:07:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:07:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:07:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:07:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:07:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:07:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:07:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:07:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:07:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:07:08,403 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:07:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:07:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:07:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:07:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:07:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:07:08,404 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:07:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:07:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:07:08,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-15 03:07:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-15 03:07:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:07:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:07:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:07:08,406 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:07:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:07:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:07:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:07:08,407 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:07:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:07:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-15 03:07:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:07:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:07:08,409 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:07:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:07:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:07:08,410 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:07:08,411 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-15 03:07:08,412 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-15 03:07:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-15 03:07:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-15 03:07:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:07:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:07:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:07:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:07:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:07:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-15 03:07:08,417 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:07:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:07:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-15 03:07:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:07:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:07:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:07:08,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:07:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:07:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:07:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:07:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:07:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:07:08,426 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:07:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:07:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:07:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:07:08,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:07:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:07:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:07:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:07:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:07:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:07:08,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:07:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:07:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:07:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:07:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:07:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:07:08,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:07:14,492 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:07:14,492 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:07:14,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:14 BoogieIcfgContainer [2019-10-15 03:07:14,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:07:14,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:07:14,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:07:14,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:07:14,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:07:06" (1/3) ... [2019-10-15 03:07:14,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1ff03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:14, skipping insertion in model container [2019-10-15 03:07:14,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:07:08" (2/3) ... [2019-10-15 03:07:14,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1ff03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:07:14, skipping insertion in model container [2019-10-15 03:07:14,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:07:14" (3/3) ... [2019-10-15 03:07:14,507 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product19.cil.c [2019-10-15 03:07:14,519 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:07:14,529 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:07:14,541 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:07:14,572 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:07:14,572 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:07:14,572 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:07:14,572 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:07:14,572 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:07:14,572 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:07:14,573 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:07:14,573 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:07:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states. [2019-10-15 03:07:14,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-15 03:07:14,660 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:14,661 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:14,663 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:14,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:14,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1031946066, now seen corresponding path program 1 times [2019-10-15 03:07:14,678 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:14,679 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282004643] [2019-10-15 03:07:14,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:14,679 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:14,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:15,360 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:15,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282004643] [2019-10-15 03:07:15,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:15,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:07:15,364 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256009556] [2019-10-15 03:07:15,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:07:15,374 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:15,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:07:15,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:07:15,400 INFO L87 Difference]: Start difference. First operand 570 states. Second operand 2 states. [2019-10-15 03:07:15,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:15,471 INFO L93 Difference]: Finished difference Result 479 states and 712 transitions. [2019-10-15 03:07:15,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:07:15,473 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 135 [2019-10-15 03:07:15,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:15,524 INFO L225 Difference]: With dead ends: 479 [2019-10-15 03:07:15,525 INFO L226 Difference]: Without dead ends: 445 [2019-10-15 03:07:15,532 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:07:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-10-15 03:07:15,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2019-10-15 03:07:15,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2019-10-15 03:07:15,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 661 transitions. [2019-10-15 03:07:15,677 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 661 transitions. Word has length 135 [2019-10-15 03:07:15,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:15,680 INFO L462 AbstractCegarLoop]: Abstraction has 445 states and 661 transitions. [2019-10-15 03:07:15,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:07:15,680 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 661 transitions. [2019-10-15 03:07:15,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-15 03:07:15,690 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:15,690 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:15,691 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:15,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:15,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1066639949, now seen corresponding path program 1 times [2019-10-15 03:07:15,692 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:15,692 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598993526] [2019-10-15 03:07:15,692 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:15,692 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:15,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:15,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:16,200 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:16,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598993526] [2019-10-15 03:07:16,201 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:16,202 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:07:16,202 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584425932] [2019-10-15 03:07:16,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:07:16,207 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:16,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:07:16,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:07:16,208 INFO L87 Difference]: Start difference. First operand 445 states and 661 transitions. Second operand 7 states. [2019-10-15 03:07:21,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:21,323 INFO L93 Difference]: Finished difference Result 1240 states and 1894 transitions. [2019-10-15 03:07:21,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:07:21,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2019-10-15 03:07:21,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:21,332 INFO L225 Difference]: With dead ends: 1240 [2019-10-15 03:07:21,333 INFO L226 Difference]: Without dead ends: 848 [2019-10-15 03:07:21,339 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:07:21,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2019-10-15 03:07:21,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 823. [2019-10-15 03:07:21,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 823 states. [2019-10-15 03:07:21,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1252 transitions. [2019-10-15 03:07:21,453 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1252 transitions. Word has length 136 [2019-10-15 03:07:21,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:21,454 INFO L462 AbstractCegarLoop]: Abstraction has 823 states and 1252 transitions. [2019-10-15 03:07:21,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:07:21,454 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1252 transitions. [2019-10-15 03:07:21,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-15 03:07:21,467 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:21,469 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:21,469 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:21,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:21,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1466123957, now seen corresponding path program 1 times [2019-10-15 03:07:21,470 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:21,470 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082383175] [2019-10-15 03:07:21,471 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:21,471 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:21,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:21,846 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082383175] [2019-10-15 03:07:21,847 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:21,847 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:07:21,847 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807473668] [2019-10-15 03:07:21,849 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:07:21,849 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:21,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:07:21,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:07:21,850 INFO L87 Difference]: Start difference. First operand 823 states and 1252 transitions. Second operand 6 states. [2019-10-15 03:07:22,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:22,618 INFO L93 Difference]: Finished difference Result 862 states and 1308 transitions. [2019-10-15 03:07:22,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:07:22,619 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-10-15 03:07:22,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:22,629 INFO L225 Difference]: With dead ends: 862 [2019-10-15 03:07:22,629 INFO L226 Difference]: Without dead ends: 845 [2019-10-15 03:07:22,630 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:07:22,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-10-15 03:07:22,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 827. [2019-10-15 03:07:22,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-10-15 03:07:22,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1256 transitions. [2019-10-15 03:07:22,694 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1256 transitions. Word has length 140 [2019-10-15 03:07:22,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:22,695 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 1256 transitions. [2019-10-15 03:07:22,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:07:22,695 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1256 transitions. [2019-10-15 03:07:22,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-15 03:07:22,700 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:22,700 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:07:22,701 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:22,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:22,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1925718676, now seen corresponding path program 1 times [2019-10-15 03:07:22,701 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:22,702 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666366352] [2019-10-15 03:07:22,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:22,702 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:22,702 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:23,115 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:07:23,116 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666366352] [2019-10-15 03:07:23,116 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:07:23,116 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 03:07:23,116 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362250350] [2019-10-15 03:07:23,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:07:23,118 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:23,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:07:23,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:07:23,119 INFO L87 Difference]: Start difference. First operand 827 states and 1256 transitions. Second operand 8 states. [2019-10-15 03:07:23,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:23,203 INFO L93 Difference]: Finished difference Result 848 states and 1282 transitions. [2019-10-15 03:07:23,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 03:07:23,204 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-10-15 03:07:23,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:23,213 INFO L225 Difference]: With dead ends: 848 [2019-10-15 03:07:23,214 INFO L226 Difference]: Without dead ends: 831 [2019-10-15 03:07:23,215 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:07:23,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2019-10-15 03:07:23,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 827. [2019-10-15 03:07:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-10-15 03:07:23,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1254 transitions. [2019-10-15 03:07:23,272 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1254 transitions. Word has length 145 [2019-10-15 03:07:23,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:23,277 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 1254 transitions. [2019-10-15 03:07:23,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:07:23,277 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1254 transitions. [2019-10-15 03:07:23,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-15 03:07:23,281 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:23,281 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-10-15 03:07:23,281 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:23,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:23,282 INFO L82 PathProgramCache]: Analyzing trace with hash 2019531158, now seen corresponding path program 1 times [2019-10-15 03:07:23,282 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:23,283 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954183921] [2019-10-15 03:07:23,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:23,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:23,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:23,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:25,266 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:07:25,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954183921] [2019-10-15 03:07:25,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757726843] [2019-10-15 03:07:25,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:07:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:25,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 3298 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-15 03:07:25,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:07:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 03:07:26,347 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:07:26,790 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:27,329 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 03:07:27,329 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:07:27,330 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [29] total 36 [2019-10-15 03:07:27,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001044563] [2019-10-15 03:07:27,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:07:27,331 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:07:27,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:07:27,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1164, Unknown=0, NotChecked=0, Total=1260 [2019-10-15 03:07:27,332 INFO L87 Difference]: Start difference. First operand 827 states and 1254 transitions. Second operand 9 states. [2019-10-15 03:07:27,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:07:27,761 INFO L93 Difference]: Finished difference Result 870 states and 1308 transitions. [2019-10-15 03:07:27,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:07:27,762 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2019-10-15 03:07:27,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:07:27,768 INFO L225 Difference]: With dead ends: 870 [2019-10-15 03:07:27,768 INFO L226 Difference]: Without dead ends: 853 [2019-10-15 03:07:27,770 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 331 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=100, Invalid=1232, Unknown=0, NotChecked=0, Total=1332 [2019-10-15 03:07:27,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2019-10-15 03:07:27,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 839. [2019-10-15 03:07:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2019-10-15 03:07:27,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 1266 transitions. [2019-10-15 03:07:27,819 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 1266 transitions. Word has length 160 [2019-10-15 03:07:27,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:07:27,820 INFO L462 AbstractCegarLoop]: Abstraction has 839 states and 1266 transitions. [2019-10-15 03:07:27,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:07:27,821 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 1266 transitions. [2019-10-15 03:07:27,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-15 03:07:27,826 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:07:27,826 INFO L380 BasicCegarLoop]: trace histogram [7, 3, 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] [2019-10-15 03:07:28,047 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:07:28,047 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:07:28,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:07:28,048 INFO L82 PathProgramCache]: Analyzing trace with hash 525391551, now seen corresponding path program 1 times [2019-10-15 03:07:28,048 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:07:28,048 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674103217] [2019-10-15 03:07:28,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:28,049 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:07:28,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:07:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:28,682 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-15 03:07:28,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674103217] [2019-10-15 03:07:28,682 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205927135] [2019-10-15 03:07:28,682 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:07:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:07:29,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 3362 conjuncts, 41 conjunts are in the unsatisfiable core [2019-10-15 03:07:29,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:07:30,188 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-10-15 03:07:30,189 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:07:30,731 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:31,111 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-10-15 03:07:31,983 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:32,500 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-10-15 03:07:32,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,883 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,884 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,885 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,886 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,892 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:32,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:33,428 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:33,553 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2019-10-15 03:07:33,911 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-10-15 03:07:34,756 WARN L191 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:35,228 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-10-15 03:07:35,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,354 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:35,729 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-10-15 03:07:35,977 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:36,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:36,840 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:37,584 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-15 03:07:38,300 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:38,679 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-10-15 03:07:39,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,099 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,100 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,101 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,102 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,103 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,104 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,105 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,106 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,106 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,108 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,109 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:39,719 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:40,207 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,210 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,210 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,211 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,213 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,215 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,215 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,216 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,216 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,217 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,217 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,218 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,219 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,219 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,222 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:40,909 WARN L191 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:41,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,182 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,185 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,803 WARN L191 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-10-15 03:07:41,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,854 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,855 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,866 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-10-15 03:07:41,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,932 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,933 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,933 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,934 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:41,934 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:07:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-10-15 03:07:42,094 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [524790361] [2019-10-15 03:07:42,126 INFO L162 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-10-15 03:07:42,127 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:07:42,134 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:07:42,141 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:07:42,142 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs