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_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:08:34,161 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:08:34,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:08:34,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:08:34,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:08:34,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:08:34,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:08:34,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:08:34,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:08:34,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:08:34,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:08:34,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:08:34,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:08:34,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:08:34,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:08:34,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:08:34,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:08:34,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:08:34,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:08:34,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:08:34,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:08:34,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:08:34,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:08:34,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:08:34,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:08:34,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:08:34,208 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:08:34,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:08:34,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:08:34,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:08:34,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:08:34,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:08:34,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:08:34,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:08:34,216 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:08:34,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:08:34,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:08:34,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:08:34,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:08:34,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:08:34,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:08:34,226 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 [2019-10-07 14:08:34,250 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:08:34,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:08:34,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:08:34,251 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:08:34,251 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:08:34,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:08:34,252 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:08:34,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:08:34,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:08:34,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:08:34,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:08:34,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:08:34,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:08:34,253 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:08:34,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:08:34,254 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:08:34,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:08:34,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:08:34,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:08:34,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:08:34,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:08:34,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:08:34,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:08:34,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:08:34,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:08:34,256 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:08:34,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:08:34,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:08:34,256 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 [2019-10-07 14:08:34,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:08:34,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:08:34,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:08:34,528 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:08:34,528 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:08:34,529 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product25.cil.c [2019-10-07 14:08:34,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a256b4b/ce3b855589ce45b5b5006c5241f7ea3f/FLAGaf74112be [2019-10-07 14:08:35,164 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:08:35,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product25.cil.c [2019-10-07 14:08:35,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a256b4b/ce3b855589ce45b5b5006c5241f7ea3f/FLAGaf74112be [2019-10-07 14:08:35,421 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64a256b4b/ce3b855589ce45b5b5006c5241f7ea3f [2019-10-07 14:08:35,432 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:08:35,433 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:08:35,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:08:35,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:08:35,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:08:35,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:08:35" (1/1) ... [2019-10-07 14:08:35,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b14516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:35, skipping insertion in model container [2019-10-07 14:08:35,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:08:35" (1/1) ... [2019-10-07 14:08:35,448 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:08:35,530 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:08:36,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:08:36,298 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:08:36,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:08:36,533 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:08:36,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:36 WrapperNode [2019-10-07 14:08:36,534 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:08:36,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:08:36,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:08:36,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:08:36,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:36" (1/1) ... [2019-10-07 14:08:36,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:36" (1/1) ... [2019-10-07 14:08:36,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:36" (1/1) ... [2019-10-07 14:08:36,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:36" (1/1) ... [2019-10-07 14:08:36,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:36" (1/1) ... [2019-10-07 14:08:36,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:36" (1/1) ... [2019-10-07 14:08:36,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:36" (1/1) ... [2019-10-07 14:08:36,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:08:36,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:08:36,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:08:36,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:08:36,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:36" (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 [2019-10-07 14:08:36,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:08:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:08:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:08:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:08:36,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:08:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:08:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:08:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:08:36,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:08:36,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:08:36,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:08:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:08:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:08:36,827 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:08:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:08:36,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:08:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:08:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:08:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:08:36,830 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:08:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:08:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:08:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:08:36,831 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:08:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:08:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:08:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:08:36,832 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:08:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:08:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:08:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:08:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:08:36,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:08:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:08:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:08:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:08:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:08:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:08:36,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:08:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:08:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:08:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:08:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:08:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:08:36,835 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:08:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:08:36,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:08:36,837 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:08:36,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:08:36,838 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:08:36,838 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:08:36,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:08:36,838 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:08:36,838 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:08:36,839 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:08:36,839 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:08:36,839 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:08:36,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:08:36,840 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:08:36,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:08:36,840 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:08:36,841 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:08:36,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:08:36,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:08:36,841 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:08:36,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:08:36,841 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:08:36,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:08:36,842 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:08:36,842 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:08:36,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:08:36,842 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:08:36,843 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:08:36,843 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:08:36,844 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:08:36,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:08:36,844 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:08:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:08:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:08:36,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:08:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:08:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:08:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:08:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:08:36,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:08:36,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:08:36,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:08:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:08:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:08:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:08:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:08:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:08:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:08:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:08:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:08:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:08:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:08:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:08:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:08:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:08:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:08:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:08:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:08:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:08:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:08:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:08:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:08:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:08:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:08:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:08:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:08:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:08:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:08:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:08:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:08:36,852 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:08:36,853 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:08:36,853 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:08:36,853 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:08:36,853 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:08:36,854 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:08:36,854 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:08:36,857 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:08:36,858 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:08:36,858 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:08:36,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:08:36,859 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:08:36,859 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:08:36,859 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:08:36,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:08:36,859 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:08:36,860 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:08:36,860 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:08:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:08:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:08:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:08:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:08:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:08:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:08:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:08:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:08:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:08:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:08:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:08:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:08:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:08:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:08:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:08:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:08:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:08:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:08:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:08:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:08:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:08:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:08:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:08:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:08:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:08:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:08:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:08:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:08:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:08:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:08:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:08:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:08:41,434 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:08:41,435 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:08:41,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:08:41 BoogieIcfgContainer [2019-10-07 14:08:41,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:08:41,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:08:41,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:08:41,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:08:41,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:08:35" (1/3) ... [2019-10-07 14:08:41,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14006c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:08:41, skipping insertion in model container [2019-10-07 14:08:41,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:08:36" (2/3) ... [2019-10-07 14:08:41,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14006c80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:08:41, skipping insertion in model container [2019-10-07 14:08:41,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:08:41" (3/3) ... [2019-10-07 14:08:41,445 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product25.cil.c [2019-10-07 14:08:41,454 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:08:41,465 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:08:41,476 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:08:41,515 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:08:41,516 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:08:41,516 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:08:41,516 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:08:41,516 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:08:41,516 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:08:41,517 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:08:41,517 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:08:41,560 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states. [2019-10-07 14:08:41,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 14:08:41,580 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:08:41,581 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:08:41,583 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:08:41,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:08:41,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1952285522, now seen corresponding path program 1 times [2019-10-07 14:08:41,597 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:08:41,597 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:41,597 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:41,598 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:41,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:08:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:08:42,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:08:42,284 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:42,285 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:08:42,285 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:08:42,289 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:08:42,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:08:42,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:08:42,308 INFO L87 Difference]: Start difference. First operand 550 states. Second operand 8 states. [2019-10-07 14:08:42,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:08:42,590 INFO L93 Difference]: Finished difference Result 853 states and 1312 transitions. [2019-10-07 14:08:42,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:08:42,593 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2019-10-07 14:08:42,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:08:42,621 INFO L225 Difference]: With dead ends: 853 [2019-10-07 14:08:42,621 INFO L226 Difference]: Without dead ends: 464 [2019-10-07 14:08:42,629 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:08:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2019-10-07 14:08:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 429. [2019-10-07 14:08:42,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-10-07 14:08:42,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 637 transitions. [2019-10-07 14:08:42,746 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 637 transitions. Word has length 115 [2019-10-07 14:08:42,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:08:42,747 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 637 transitions. [2019-10-07 14:08:42,747 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:08:42,747 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 637 transitions. [2019-10-07 14:08:42,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:08:42,755 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:08:42,755 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:08:42,755 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:08:42,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:08:42,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1054827528, now seen corresponding path program 1 times [2019-10-07 14:08:42,756 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:08:42,756 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:42,757 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:42,757 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:08:42,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:08:43,114 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:08:43,115 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:43,115 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:08:43,116 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:08:43,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:08:43,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:08:43,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:08:43,129 INFO L87 Difference]: Start difference. First operand 429 states and 637 transitions. Second operand 7 states. [2019-10-07 14:08:46,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:08:46,551 INFO L93 Difference]: Finished difference Result 1296 states and 1994 transitions. [2019-10-07 14:08:46,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-07 14:08:46,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 120 [2019-10-07 14:08:46,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:08:46,563 INFO L225 Difference]: With dead ends: 1296 [2019-10-07 14:08:46,563 INFO L226 Difference]: Without dead ends: 920 [2019-10-07 14:08:46,576 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:08:46,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2019-10-07 14:08:46,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 893. [2019-10-07 14:08:46,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 893 states. [2019-10-07 14:08:46,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 893 states to 893 states and 1376 transitions. [2019-10-07 14:08:46,688 INFO L78 Accepts]: Start accepts. Automaton has 893 states and 1376 transitions. Word has length 120 [2019-10-07 14:08:46,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:08:46,695 INFO L462 AbstractCegarLoop]: Abstraction has 893 states and 1376 transitions. [2019-10-07 14:08:46,695 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:08:46,695 INFO L276 IsEmpty]: Start isEmpty. Operand 893 states and 1376 transitions. [2019-10-07 14:08:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-07 14:08:46,704 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:08:46,704 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:08:46,705 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:08:46,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:08:46,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1595381557, now seen corresponding path program 1 times [2019-10-07 14:08:46,706 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:08:46,707 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:46,710 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:46,711 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:46,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:08:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:08:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:08:47,069 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:47,070 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:08:47,070 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:08:47,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:08:47,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:08:47,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:08:47,073 INFO L87 Difference]: Start difference. First operand 893 states and 1376 transitions. Second operand 5 states. [2019-10-07 14:08:47,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:08:47,159 INFO L93 Difference]: Finished difference Result 1406 states and 2182 transitions. [2019-10-07 14:08:47,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:08:47,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2019-10-07 14:08:47,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:08:47,168 INFO L225 Difference]: With dead ends: 1406 [2019-10-07 14:08:47,168 INFO L226 Difference]: Without dead ends: 915 [2019-10-07 14:08:47,171 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:08:47,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2019-10-07 14:08:47,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 905. [2019-10-07 14:08:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2019-10-07 14:08:47,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1391 transitions. [2019-10-07 14:08:47,243 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 1391 transitions. Word has length 124 [2019-10-07 14:08:47,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:08:47,245 INFO L462 AbstractCegarLoop]: Abstraction has 905 states and 1391 transitions. [2019-10-07 14:08:47,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:08:47,245 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 1391 transitions. [2019-10-07 14:08:47,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-07 14:08:47,249 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:08:47,249 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:08:47,250 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:08:47,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:08:47,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1852638131, now seen corresponding path program 1 times [2019-10-07 14:08:47,250 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:08:47,251 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:47,251 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:47,251 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:47,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:08:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:08:47,544 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:08:47,545 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:47,545 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:08:47,545 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:08:47,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:08:47,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:08:47,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:08:47,548 INFO L87 Difference]: Start difference. First operand 905 states and 1391 transitions. Second operand 8 states. [2019-10-07 14:08:50,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:08:50,807 INFO L93 Difference]: Finished difference Result 1904 states and 2936 transitions. [2019-10-07 14:08:50,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:08:50,807 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 128 [2019-10-07 14:08:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:08:50,817 INFO L225 Difference]: With dead ends: 1904 [2019-10-07 14:08:50,817 INFO L226 Difference]: Without dead ends: 1305 [2019-10-07 14:08:50,822 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:08:50,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2019-10-07 14:08:50,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1255. [2019-10-07 14:08:50,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-10-07 14:08:50,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1888 transitions. [2019-10-07 14:08:50,918 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1888 transitions. Word has length 128 [2019-10-07 14:08:50,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:08:50,918 INFO L462 AbstractCegarLoop]: Abstraction has 1255 states and 1888 transitions. [2019-10-07 14:08:50,919 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:08:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1888 transitions. [2019-10-07 14:08:50,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-07 14:08:50,925 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:08:50,925 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:08:50,925 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:08:50,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:08:50,926 INFO L82 PathProgramCache]: Analyzing trace with hash -954095009, now seen corresponding path program 1 times [2019-10-07 14:08:50,926 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:08:50,927 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:50,927 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:50,927 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:50,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:08:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:08:51,169 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:08:51,169 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:51,170 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:08:51,170 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:08:51,170 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:08:51,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:08:51,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:08:51,171 INFO L87 Difference]: Start difference. First operand 1255 states and 1888 transitions. Second operand 7 states. [2019-10-07 14:08:51,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:08:51,371 INFO L93 Difference]: Finished difference Result 2348 states and 3621 transitions. [2019-10-07 14:08:51,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:08:51,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 131 [2019-10-07 14:08:51,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:08:51,380 INFO L225 Difference]: With dead ends: 2348 [2019-10-07 14:08:51,380 INFO L226 Difference]: Without dead ends: 1255 [2019-10-07 14:08:51,386 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:08:51,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2019-10-07 14:08:51,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2019-10-07 14:08:51,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-10-07 14:08:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1856 transitions. [2019-10-07 14:08:51,452 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1856 transitions. Word has length 131 [2019-10-07 14:08:51,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:08:51,452 INFO L462 AbstractCegarLoop]: Abstraction has 1255 states and 1856 transitions. [2019-10-07 14:08:51,452 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:08:51,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1856 transitions. [2019-10-07 14:08:51,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2019-10-07 14:08:51,456 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:08:51,456 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:08:51,456 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:08:51,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:08:51,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1846314582, now seen corresponding path program 1 times [2019-10-07 14:08:51,457 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:08:51,457 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:51,457 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:51,459 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:51,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:08:51,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:08:51,728 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-07 14:08:51,728 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:51,728 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:08:51,728 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:08:51,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:08:51,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:08:51,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:08:51,732 INFO L87 Difference]: Start difference. First operand 1255 states and 1856 transitions. Second operand 7 states. [2019-10-07 14:08:54,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:08:54,722 INFO L93 Difference]: Finished difference Result 2217 states and 3291 transitions. [2019-10-07 14:08:54,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:08:54,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2019-10-07 14:08:54,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:08:54,732 INFO L225 Difference]: With dead ends: 2217 [2019-10-07 14:08:54,732 INFO L226 Difference]: Without dead ends: 1325 [2019-10-07 14:08:54,736 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:08:54,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2019-10-07 14:08:54,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1282. [2019-10-07 14:08:54,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1282 states. [2019-10-07 14:08:54,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1890 transitions. [2019-10-07 14:08:54,800 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1890 transitions. Word has length 133 [2019-10-07 14:08:54,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:08:54,802 INFO L462 AbstractCegarLoop]: Abstraction has 1282 states and 1890 transitions. [2019-10-07 14:08:54,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:08:54,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1890 transitions. [2019-10-07 14:08:54,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-10-07 14:08:54,805 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:08:54,805 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:08:54,806 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:08:54,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:08:54,806 INFO L82 PathProgramCache]: Analyzing trace with hash -358357125, now seen corresponding path program 1 times [2019-10-07 14:08:54,806 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:08:54,806 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:54,806 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:54,807 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:08:54,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:08:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:08:55,367 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-07 14:08:55,367 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:08:55,368 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:08:55,368 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-07 14:08:55,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-07 14:08:55,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-07 14:08:55,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=552, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:08:55,369 INFO L87 Difference]: Start difference. First operand 1282 states and 1890 transitions. Second operand 26 states. [2019-10-07 14:09:23,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:23,024 INFO L93 Difference]: Finished difference Result 5326 states and 8179 transitions. [2019-10-07 14:09:23,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2019-10-07 14:09:23,028 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 140 [2019-10-07 14:09:23,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:23,053 INFO L225 Difference]: With dead ends: 5326 [2019-10-07 14:09:23,053 INFO L226 Difference]: Without dead ends: 4099 [2019-10-07 14:09:23,063 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2875 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1734, Invalid=7008, Unknown=0, NotChecked=0, Total=8742 [2019-10-07 14:09:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4099 states. [2019-10-07 14:09:23,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4099 to 3591. [2019-10-07 14:09:23,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3591 states. [2019-10-07 14:09:23,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 5463 transitions. [2019-10-07 14:09:23,324 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 5463 transitions. Word has length 140 [2019-10-07 14:09:23,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:23,325 INFO L462 AbstractCegarLoop]: Abstraction has 3591 states and 5463 transitions. [2019-10-07 14:09:23,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-07 14:09:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 5463 transitions. [2019-10-07 14:09:23,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-10-07 14:09:23,332 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:23,332 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:09:23,333 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:23,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:23,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1775540072, now seen corresponding path program 1 times [2019-10-07 14:09:23,334 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:23,334 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:23,334 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:23,334 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:23,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:23,576 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:09:23,577 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:23,577 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:23,577 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:09:23,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:09:23,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:09:23,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:09:23,578 INFO L87 Difference]: Start difference. First operand 3591 states and 5463 transitions. Second operand 6 states. [2019-10-07 14:09:24,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:24,168 INFO L93 Difference]: Finished difference Result 3682 states and 5615 transitions. [2019-10-07 14:09:24,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:09:24,168 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2019-10-07 14:09:24,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:24,198 INFO L225 Difference]: With dead ends: 3682 [2019-10-07 14:09:24,198 INFO L226 Difference]: Without dead ends: 3659 [2019-10-07 14:09:24,202 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:09:24,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3659 states. [2019-10-07 14:09:24,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3659 to 3603. [2019-10-07 14:09:24,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3603 states. [2019-10-07 14:09:24,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 5475 transitions. [2019-10-07 14:09:24,403 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 5475 transitions. Word has length 141 [2019-10-07 14:09:24,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:24,403 INFO L462 AbstractCegarLoop]: Abstraction has 3603 states and 5475 transitions. [2019-10-07 14:09:24,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:09:24,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 5475 transitions. [2019-10-07 14:09:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-10-07 14:09:24,408 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:24,408 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:09:24,408 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:24,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:24,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1967987058, now seen corresponding path program 1 times [2019-10-07 14:09:24,409 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:24,409 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:24,410 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:24,410 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:24,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:24,615 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:09:24,616 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:24,616 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:24,616 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:09:24,617 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:09:24,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:09:24,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:09:24,618 INFO L87 Difference]: Start difference. First operand 3603 states and 5475 transitions. Second operand 8 states. [2019-10-07 14:09:24,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:24,772 INFO L93 Difference]: Finished difference Result 3638 states and 5519 transitions. [2019-10-07 14:09:24,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 14:09:24,773 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 143 [2019-10-07 14:09:24,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:24,806 INFO L225 Difference]: With dead ends: 3638 [2019-10-07 14:09:24,807 INFO L226 Difference]: Without dead ends: 3615 [2019-10-07 14:09:24,811 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:09:24,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3615 states. [2019-10-07 14:09:25,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3615 to 3603. [2019-10-07 14:09:25,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3603 states. [2019-10-07 14:09:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 5461 transitions. [2019-10-07 14:09:25,154 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 5461 transitions. Word has length 143 [2019-10-07 14:09:25,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:25,155 INFO L462 AbstractCegarLoop]: Abstraction has 3603 states and 5461 transitions. [2019-10-07 14:09:25,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:09:25,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 5461 transitions. [2019-10-07 14:09:25,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-07 14:09:25,163 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:25,164 INFO L385 BasicCegarLoop]: trace histogram [3, 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] [2019-10-07 14:09:25,164 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:25,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:25,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1050296981, now seen corresponding path program 1 times [2019-10-07 14:09:25,165 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:25,165 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:25,166 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:25,166 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:25,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:25,494 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-07 14:09:25,494 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:25,494 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:09:25,494 INFO L95 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 [2019-10-07 14:09:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:26,118 INFO L256 TraceCheckSpWp]: Trace formula consists of 3274 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 14:09:26,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:09:26,233 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:09:26,314 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:09:26,315 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:09:26,661 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:09:26,856 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-10-07 14:09:26,856 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:09:26,857 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [13] total 18 [2019-10-07 14:09:26,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:09:26,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:09:26,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:09:26,858 INFO L87 Difference]: Start difference. First operand 3603 states and 5461 transitions. Second operand 7 states. [2019-10-07 14:09:27,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:27,057 INFO L93 Difference]: Finished difference Result 3734 states and 5631 transitions. [2019-10-07 14:09:27,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:09:27,058 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2019-10-07 14:09:27,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:27,093 INFO L225 Difference]: With dead ends: 3734 [2019-10-07 14:09:27,094 INFO L226 Difference]: Without dead ends: 3711 [2019-10-07 14:09:27,098 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 317 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2019-10-07 14:09:27,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2019-10-07 14:09:27,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3671. [2019-10-07 14:09:27,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3671 states. [2019-10-07 14:09:27,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3671 states to 3671 states and 5533 transitions. [2019-10-07 14:09:27,566 INFO L78 Accepts]: Start accepts. Automaton has 3671 states and 5533 transitions. Word has length 158 [2019-10-07 14:09:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:27,567 INFO L462 AbstractCegarLoop]: Abstraction has 3671 states and 5533 transitions. [2019-10-07 14:09:27,567 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:09:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3671 states and 5533 transitions. [2019-10-07 14:09:27,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:09:27,574 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:27,575 INFO L385 BasicCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:09:27,782 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:09:27,783 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:27,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:27,784 INFO L82 PathProgramCache]: Analyzing trace with hash 752251203, now seen corresponding path program 1 times [2019-10-07 14:09:27,784 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:27,785 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:27,785 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:27,785 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:27,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-07 14:09:28,121 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:28,122 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:09:28,122 INFO L95 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 [2019-10-07 14:09:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:28,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 3338 conjuncts, 99 conjunts are in the unsatisfiable core [2019-10-07 14:09:28,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:09:30,077 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:09:30,077 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:09:30,304 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:09:30,584 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 13 [2019-10-07 14:09:30,741 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-10-07 14:10:15,915 WARN L191 SmtUtils]: Spent 44.82 s on a formula simplification. DAG size of input: 1441 DAG size of output: 51 [2019-10-07 14:10:16,537 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:10:16,789 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12 [2019-10-07 14:11:01,093 WARN L191 SmtUtils]: Spent 43.89 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:11:01,965 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:11:02,480 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:11:02,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:02,966 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:11:03,055 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:03,371 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:11:03,798 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:11:03,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:03,942 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:03,943 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:03,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:03,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:03,966 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:03,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:11:04,176 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:11:04,519 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12 [2019-10-07 14:11:48,788 WARN L191 SmtUtils]: Spent 43.81 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:12:33,534 WARN L191 SmtUtils]: Spent 43.96 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:12:33,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:12:33,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:12:33,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:12:33,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:12:33,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-07 14:13:18,303 WARN L191 SmtUtils]: Spent 43.99 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:13:18,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:18,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:18,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:18,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:18,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:18,429 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-07 14:13:18,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:18,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:18,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-07 14:13:18,815 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:13:19,068 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12 [2019-10-07 14:13:19,077 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:19,299 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:13:19,570 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 13 [2019-10-07 14:14:03,653 WARN L191 SmtUtils]: Spent 43.69 s on a formula simplification. DAG size of input: 1441 DAG size of output: 51 [2019-10-07 14:14:48,270 WARN L191 SmtUtils]: Spent 43.80 s on a formula simplification. DAG size of input: 1441 DAG size of output: 51 [2019-10-07 14:14:48,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:14:48,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:14:48,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:14:48,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:32,434 WARN L191 SmtUtils]: Spent 43.43 s on a formula simplification. DAG size of input: 1441 DAG size of output: 51 [2019-10-07 14:15:32,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:32,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:32,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:32,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:32,768 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:15:33,021 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 13 [2019-10-07 14:15:33,069 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:33,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:33,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:33,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:33,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:33,072 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:33,137 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-10-07 14:15:33,138 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:15:33,165 INFO L162 IcfgInterpreter]: Started Sifa with 156 locations of interest [2019-10-07 14:15:33,165 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:15:33,172 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:15:33,178 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:15:33,178 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:16:12,789 WARN L191 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 762 [2019-10-07 14:16:17,406 WARN L191 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:16:17,906 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:16:18,436 WARN L191 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:16:18,767 WARN L191 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:16:19,349 WARN L191 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:16:19,876 WARN L191 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:16:20,340 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:16:20,848 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:16:21,730 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 1036 [2019-10-07 14:16:22,182 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:16:22,683 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:16:23,126 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:16:23,582 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:16:24,073 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:16:24,089 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 388 for LOIs [2019-10-07 14:16:24,307 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:16:24,425 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:16:24,771 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 919 [2019-10-07 14:16:24,772 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1086 for LOIs [2019-10-07 14:16:25,213 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:25,669 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:25,795 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:26,538 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:26,990 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:27,433 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:27,554 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:28,302 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:28,759 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:29,198 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:29,453 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:30,324 WARN L191 SmtUtils]: Spent 868.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:31,223 WARN L191 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1086 [2019-10-07 14:16:31,658 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:31,862 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:32,601 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:33,055 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:33,499 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:33,618 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:34,357 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:34,793 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:35,229 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:35,347 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:36,090 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:36,534 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:36,974 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:37,093 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:37,832 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:38,268 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:38,705 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:38,822 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:39,566 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:40,001 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:40,439 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:40,565 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:41,305 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:41,742 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:42,194 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:42,314 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:43,050 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:43,488 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:43,927 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:44,045 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:44,784 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:45,225 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:45,661 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:45,778 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:46,523 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:46,961 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:47,397 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:16:47,515 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:48,264 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:49,621 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:50,365 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:50,490 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:51,236 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:52,641 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:16:53,381 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:53,506 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:54,247 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:55,000 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:55,743 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:55,861 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:16:56,604 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:16:57,397 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:16:58,142 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:16:58,266 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:16:59,015 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:00,660 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:01,427 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:01,571 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:02,317 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:03,576 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:17:04,321 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:17:04,443 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:05,198 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:06,714 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:17:07,464 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:17:07,587 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:08,334 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:09,087 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:09,835 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:09,959 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:10,708 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:17:11,482 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:12,225 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:12,356 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:13,107 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:17:14,448 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:17:15,195 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:15,325 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:16,073 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:17:16,824 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:17,569 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:17,692 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:18,445 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:17:19,817 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:17:20,558 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:20,708 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:17:21,453 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:22,806 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:17:23,547 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:23,670 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:17:24,410 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:25,152 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:25,894 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:26,014 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:17:26,752 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:27,544 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:28,300 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:28,427 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:29,186 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:29,950 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:30,697 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:30,826 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:31,574 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:32,334 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:33,084 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:33,204 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:33,953 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:35,233 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:17:35,973 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:17:36,098 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:36,853 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:38,200 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:17:38,944 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:39,070 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:39,829 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:17:41,184 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:17:41,932 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:42,055 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:17:42,818 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:44,293 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:17:45,040 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:45,168 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:17:45,921 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:46,666 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:47,423 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:47,542 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:17:48,284 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:49,643 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:17:50,386 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:50,511 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:17:51,251 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:52,607 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:17:53,351 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:53,474 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:17:54,216 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:54,957 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:55,704 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:55,827 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:17:56,568 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:17:57,349 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:58,100 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:58,229 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:17:58,976 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:17:59,741 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:00,499 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:00,627 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:01,376 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:02,730 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:18:03,474 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:03,599 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:18:04,340 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:05,683 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:18:06,424 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:06,547 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:18:07,286 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:08,035 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:08,776 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:08,893 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:18:09,636 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:10,923 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:18:11,676 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:18:11,799 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:12,549 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:13,821 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:18:14,566 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:18:14,690 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:15,435 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:16,186 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:18:16,934 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:18:17,053 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:17,799 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:19,146 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:18:19,896 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:20,038 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:20,785 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:22,135 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:18:22,877 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:23,017 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:18:23,757 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:25,110 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:18:25,850 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:25,975 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:18:26,714 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:27,458 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:28,206 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:28,335 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:18:29,076 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:29,851 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:30,614 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:30,739 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:31,493 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:32,764 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:18:33,512 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:18:33,639 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:34,387 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:35,649 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:18:36,393 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:18:36,517 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:37,270 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:38,521 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:18:39,265 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:39,389 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:40,127 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:41,401 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:18:42,149 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:18:42,273 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:43,025 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:18:44,327 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:18:45,072 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:18:45,343 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:46,113 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:18:47,379 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:18:48,121 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:18:48,245 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:49,008 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:18:50,347 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:18:51,092 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:51,216 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:18:51,956 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:53,294 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:18:54,051 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:54,178 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:18:54,922 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:55,664 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:56,412 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:56,529 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:18:57,285 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:18:58,058 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:58,804 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:18:58,929 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:18:59,689 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:01,050 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:19:01,814 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:01,945 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:19:02,697 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:04,033 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:19:04,804 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:04,923 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:19:05,668 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:06,953 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:19:07,697 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:19:07,822 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:19:08,584 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:09,930 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:19:10,677 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:19:10,801 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:19:11,559 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:19:12,922 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:19:13,673 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:19:13,795 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:19:14,545 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:19:15,899 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:19:16,642 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:19:16,765 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:19:17,501 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:19:17,509 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1114 for LOIs [2019-10-07 14:19:17,991 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:18,477 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:19:18,597 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:19:19,353 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:19:19,892 WARN L191 SmtUtils]: Spent 508.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:19:20,395 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:19:20,516 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:19:21,263 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:19:22,165 WARN L191 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1124 [2019-10-07 14:19:22,669 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:19:22,792 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:19:23,539 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:19:24,055 WARN L191 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:19:24,558 WARN L191 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:19:24,684 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:19:25,439 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:19:25,943 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:19:26,450 WARN L191 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:19:26,573 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:19:27,328 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:19:27,834 WARN L191 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:19:28,343 WARN L191 SmtUtils]: Spent 507.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:19:28,462 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:19:29,204 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:19:29,475 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:29,476 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:177) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:436) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor at de.uni_freiburg.informatik.ultimate.lib.sifa.PriorityWorklist.add(PriorityWorklist.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.lambda$2(DagInterpreter.java:135) at java.lang.Iterable.forEach(Iterable.java:75) at java.util.Collections$UnmodifiableCollection.forEach(Collections.java:1080) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:135) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:104) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.computeTopSummary(TopInputCallSummarizer.java:78) at java.util.HashMap.computeIfAbsent(HashMap.java:1127) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.TopInputCallSummarizer.summarize(TopInputCallSummarizer.java:67) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:230) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:214) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:197) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:166) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:130) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:99) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:287) ... 21 more [2019-10-07 14:19:29,483 INFO L168 Benchmark]: Toolchain (without parser) took 654049.81 ms. Allocated memory was 142.6 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 101.0 MB in the beginning and 2.0 GB in the end (delta: -1.9 GB). Peak memory consumption was 815.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:19:29,483 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 122.7 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 14:19:29,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1100.00 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 100.8 MB in the beginning and 144.0 MB in the end (delta: -43.2 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:19:29,486 INFO L168 Benchmark]: Boogie Preprocessor took 199.62 ms. Allocated memory is still 204.5 MB. Free memory was 144.0 MB in the beginning and 134.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:19:29,486 INFO L168 Benchmark]: RCFGBuilder took 4702.19 ms. Allocated memory was 204.5 MB in the beginning and 290.5 MB in the end (delta: 86.0 MB). Free memory was 134.9 MB in the beginning and 173.7 MB in the end (delta: -38.8 MB). Peak memory consumption was 142.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:19:29,498 INFO L168 Benchmark]: TraceAbstraction took 648043.38 ms. Allocated memory was 290.5 MB in the beginning and 2.9 GB in the end (delta: 2.6 GB). Free memory was 173.7 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 739.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:19:29,502 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 122.7 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1100.00 ms. Allocated memory was 142.6 MB in the beginning and 204.5 MB in the end (delta: 61.9 MB). Free memory was 100.8 MB in the beginning and 144.0 MB in the end (delta: -43.2 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 199.62 ms. Allocated memory is still 204.5 MB. Free memory was 144.0 MB in the beginning and 134.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4702.19 ms. Allocated memory was 204.5 MB in the beginning and 290.5 MB in the end (delta: 86.0 MB). Free memory was 134.9 MB in the beginning and 173.7 MB in the end (delta: -38.8 MB). Peak memory consumption was 142.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 648043.38 ms. Allocated memory was 290.5 MB in the beginning and 2.9 GB in the end (delta: 2.6 GB). Free memory was 173.7 MB in the beginning and 2.0 GB in the end (delta: -1.8 GB). Peak memory consumption was 739.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...