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_spec2_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:18:01,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:18:01,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:18:01,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:18:01,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:18:01,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:18:01,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:18:01,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:18:01,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:18:01,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:18:01,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:18:01,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:18:01,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:18:01,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:18:01,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:18:01,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:18:01,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:18:01,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:18:01,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:18:01,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:18:01,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:18:01,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:18:01,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:18:01,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:18:01,129 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:18:01,130 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:18:01,130 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:18:01,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:18:01,131 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:18:01,132 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:18:01,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:18:01,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:18:01,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:18:01,134 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:18:01,135 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:18:01,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:18:01,136 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:18:01,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:18:01,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:18:01,138 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:18:01,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:18:01,139 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 14:18:01,153 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:18:01,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:18:01,154 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:18:01,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:18:01,155 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:18:01,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:18:01,156 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:18:01,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:18:01,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:18:01,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:18:01,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:18:01,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:18:01,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:18:01,157 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:18:01,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:18:01,157 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:18:01,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:18:01,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:18:01,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:18:01,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:18:01,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:18:01,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:18:01,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:18:01,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:18:01,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:18:01,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:18:01,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:18:01,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:18:01,160 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 14:18:01,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:18:01,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:18:01,455 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:18:01,457 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:18:01,457 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:18:01,458 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product22.cil.c [2019-10-07 14:18:01,529 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0d94de34/29361b3a4cfd4649af61d0d2d5e51bbb/FLAGda4f11ac2 [2019-10-07 14:18:02,208 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:18:02,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product22.cil.c [2019-10-07 14:18:02,230 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0d94de34/29361b3a4cfd4649af61d0d2d5e51bbb/FLAGda4f11ac2 [2019-10-07 14:18:02,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0d94de34/29361b3a4cfd4649af61d0d2d5e51bbb [2019-10-07 14:18:02,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:18:02,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:18:02,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:18:02,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:18:02,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:18:02,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:18:02" (1/1) ... [2019-10-07 14:18:02,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a57a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:02, skipping insertion in model container [2019-10-07 14:18:02,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:18:02" (1/1) ... [2019-10-07 14:18:02,395 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:18:02,485 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:18:03,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:18:03,305 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:18:03,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:18:03,538 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:18:03,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:03 WrapperNode [2019-10-07 14:18:03,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:18:03,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:18:03,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:18:03,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:18:03,559 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:03" (1/1) ... [2019-10-07 14:18:03,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:03" (1/1) ... [2019-10-07 14:18:03,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:03" (1/1) ... [2019-10-07 14:18:03,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:03" (1/1) ... [2019-10-07 14:18:03,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:03" (1/1) ... [2019-10-07 14:18:03,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:03" (1/1) ... [2019-10-07 14:18:03,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:03" (1/1) ... [2019-10-07 14:18:03,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:18:03,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:18:03,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:18:03,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:18:03,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:03" (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 14:18:03,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:18:03,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:18:03,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:18:03,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:18:03,863 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:18:03,863 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:18:03,863 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:18:03,863 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:18:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:18:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:18:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:18:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:18:03,864 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:18:03,865 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:18:03,865 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:18:03,865 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:18:03,865 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:18:03,866 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:18:03,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:18:03,866 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:18:03,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:18:03,866 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:18:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:18:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:18:03,867 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:18:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:18:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:18:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:18:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:18:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:18:03,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:18:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:18:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:18:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:18:03,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:18:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:18:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:18:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:18:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:18:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:18:03,870 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:18:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:18:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:18:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:18:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:18:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:18:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:18:03,871 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:18:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:18:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:18:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:18:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:18:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:18:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:18:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:18:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:18:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:18:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:18:03,873 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:18:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:18:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:18:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:18:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:18:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:18:03,874 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:18:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:18:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:18:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2019-10-07 14:18:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:18:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__twothirdsfull [2019-10-07 14:18:03,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:18:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:18:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:18:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:18:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:18:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:18:03,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:18:03,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:18:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:18:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:18:03,877 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:18:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:18:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:18:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:18:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:18:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:18:03,878 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:18:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:18:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:18:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:18:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:18:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:18:03,879 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:18:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:18:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:18:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:18:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:18:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:18:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:18:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:18:03,880 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:18:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:18:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:18:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:18:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:18:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:18:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:18:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:18:03,881 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:18:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:18:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:18:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:18:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:18:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:18:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:18:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:18:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:18:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:18:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:18:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:18:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:18:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:18:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:18:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:18:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:18:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:18:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:18:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:18:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:18:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:18:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:18:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:18:03,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:18:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:18:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:18:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:18:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:18:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:18:03,886 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:18:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:18:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:18:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:18:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:18:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:18:03,887 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:18:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:18:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:18:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:18:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:18:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:18:03,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:18:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:18:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:18:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:18:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:18:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-07 14:18:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:18:03,889 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:18:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-07 14:18:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:18:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:18:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:18:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2019-10-07 14:18:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:18:03,890 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__twothirdsfull [2019-10-07 14:18:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:18:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:18:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:18:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:18:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:18:03,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:18:08,750 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:18:08,751 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:18:08,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:18:08 BoogieIcfgContainer [2019-10-07 14:18:08,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:18:08,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:18:08,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:18:08,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:18:08,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:18:02" (1/3) ... [2019-10-07 14:18:08,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4994d50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:18:08, skipping insertion in model container [2019-10-07 14:18:08,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:03" (2/3) ... [2019-10-07 14:18:08,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4994d50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:18:08, skipping insertion in model container [2019-10-07 14:18:08,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:18:08" (3/3) ... [2019-10-07 14:18:08,761 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product22.cil.c [2019-10-07 14:18:08,772 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:18:08,782 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:18:08,794 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:18:08,826 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:18:08,826 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:18:08,826 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:18:08,826 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:18:08,826 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:18:08,827 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:18:08,827 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:18:08,827 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:18:08,860 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states. [2019-10-07 14:18:08,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-10-07 14:18:08,875 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:08,877 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:18:08,879 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:08,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:08,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1540837119, now seen corresponding path program 1 times [2019-10-07 14:18:08,894 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:08,894 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:08,895 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:08,895 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:08,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:18:09,517 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:09,518 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:09,518 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:18:09,522 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:18:09,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:18:09,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:18:09,539 INFO L87 Difference]: Start difference. First operand 582 states. Second operand 2 states. [2019-10-07 14:18:09,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:09,611 INFO L93 Difference]: Finished difference Result 479 states and 713 transitions. [2019-10-07 14:18:09,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:18:09,612 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 74 [2019-10-07 14:18:09,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:09,640 INFO L225 Difference]: With dead ends: 479 [2019-10-07 14:18:09,640 INFO L226 Difference]: Without dead ends: 445 [2019-10-07 14:18:09,648 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:18:09,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-10-07 14:18:09,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 445. [2019-10-07 14:18:09,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2019-10-07 14:18:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 662 transitions. [2019-10-07 14:18:09,807 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 662 transitions. Word has length 74 [2019-10-07 14:18:09,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:09,810 INFO L462 AbstractCegarLoop]: Abstraction has 445 states and 662 transitions. [2019-10-07 14:18:09,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:18:09,810 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 662 transitions. [2019-10-07 14:18:09,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-07 14:18:09,821 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:09,822 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:18:09,822 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:09,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:09,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1841613749, now seen corresponding path program 1 times [2019-10-07 14:18:09,824 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:09,824 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:09,824 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:09,824 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:09,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:09,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:18:10,238 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:10,239 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:10,239 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:18:10,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:18:10,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:18:10,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:18:10,248 INFO L87 Difference]: Start difference. First operand 445 states and 662 transitions. Second operand 9 states. [2019-10-07 14:18:16,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:16,357 INFO L93 Difference]: Finished difference Result 1218 states and 1852 transitions. [2019-10-07 14:18:16,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 14:18:16,357 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2019-10-07 14:18:16,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:16,371 INFO L225 Difference]: With dead ends: 1218 [2019-10-07 14:18:16,372 INFO L226 Difference]: Without dead ends: 815 [2019-10-07 14:18:16,384 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:18:16,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2019-10-07 14:18:16,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 784. [2019-10-07 14:18:16,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-10-07 14:18:16,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1153 transitions. [2019-10-07 14:18:16,471 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1153 transitions. Word has length 75 [2019-10-07 14:18:16,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:16,474 INFO L462 AbstractCegarLoop]: Abstraction has 784 states and 1153 transitions. [2019-10-07 14:18:16,474 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:18:16,475 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1153 transitions. [2019-10-07 14:18:16,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-07 14:18:16,478 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:16,478 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:18:16,478 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:16,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:16,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1947632873, now seen corresponding path program 1 times [2019-10-07 14:18:16,479 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:16,479 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:16,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:16,479 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:16,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:18:16,654 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:16,654 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:16,655 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:18:16,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:18:16,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:18:16,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:18:16,656 INFO L87 Difference]: Start difference. First operand 784 states and 1153 transitions. Second operand 5 states. [2019-10-07 14:18:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:19,062 INFO L93 Difference]: Finished difference Result 2342 states and 3531 transitions. [2019-10-07 14:18:19,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:18:19,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2019-10-07 14:18:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:19,079 INFO L225 Difference]: With dead ends: 2342 [2019-10-07 14:18:19,079 INFO L226 Difference]: Without dead ends: 1601 [2019-10-07 14:18:19,085 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:18:19,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2019-10-07 14:18:19,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1505. [2019-10-07 14:18:19,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1505 states. [2019-10-07 14:18:19,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2256 transitions. [2019-10-07 14:18:19,201 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2256 transitions. Word has length 77 [2019-10-07 14:18:19,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:19,202 INFO L462 AbstractCegarLoop]: Abstraction has 1505 states and 2256 transitions. [2019-10-07 14:18:19,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:18:19,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2256 transitions. [2019-10-07 14:18:19,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-07 14:18:19,204 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:19,204 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:18:19,205 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:19,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:19,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1397767893, now seen corresponding path program 1 times [2019-10-07 14:18:19,206 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:19,206 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:19,206 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:19,206 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:19,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:19,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:18:19,361 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:19,362 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:19,362 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:18:19,362 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:18:19,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:18:19,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:18:19,363 INFO L87 Difference]: Start difference. First operand 1505 states and 2256 transitions. Second operand 4 states. [2019-10-07 14:18:21,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:21,446 INFO L93 Difference]: Finished difference Result 4434 states and 6753 transitions. [2019-10-07 14:18:21,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:18:21,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 77 [2019-10-07 14:18:21,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:21,477 INFO L225 Difference]: With dead ends: 4434 [2019-10-07 14:18:21,478 INFO L226 Difference]: Without dead ends: 2973 [2019-10-07 14:18:21,491 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:18:21,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2973 states. [2019-10-07 14:18:21,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2973 to 2856. [2019-10-07 14:18:21,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2856 states. [2019-10-07 14:18:21,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 4326 transitions. [2019-10-07 14:18:21,698 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 4326 transitions. Word has length 77 [2019-10-07 14:18:21,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:21,699 INFO L462 AbstractCegarLoop]: Abstraction has 2856 states and 4326 transitions. [2019-10-07 14:18:21,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:18:21,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 4326 transitions. [2019-10-07 14:18:21,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-07 14:18:21,700 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:21,701 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:18:21,701 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:21,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:21,701 INFO L82 PathProgramCache]: Analyzing trace with hash 379461772, now seen corresponding path program 1 times [2019-10-07 14:18:21,702 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:21,702 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:21,702 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:21,702 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:21,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:21,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:18:21,934 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:21,934 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:21,934 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:18:21,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:18:21,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:18:21,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:18:21,935 INFO L87 Difference]: Start difference. First operand 2856 states and 4326 transitions. Second operand 4 states. [2019-10-07 14:18:23,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:23,906 INFO L93 Difference]: Finished difference Result 8532 states and 13130 transitions. [2019-10-07 14:18:23,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:18:23,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2019-10-07 14:18:23,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:23,982 INFO L225 Difference]: With dead ends: 8532 [2019-10-07 14:18:23,983 INFO L226 Difference]: Without dead ends: 5721 [2019-10-07 14:18:24,008 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:18:24,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2019-10-07 14:18:24,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 5559. [2019-10-07 14:18:24,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5559 states. [2019-10-07 14:18:24,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5559 states to 5559 states and 8504 transitions. [2019-10-07 14:18:24,514 INFO L78 Accepts]: Start accepts. Automaton has 5559 states and 8504 transitions. Word has length 78 [2019-10-07 14:18:24,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:24,514 INFO L462 AbstractCegarLoop]: Abstraction has 5559 states and 8504 transitions. [2019-10-07 14:18:24,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:18:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand 5559 states and 8504 transitions. [2019-10-07 14:18:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-07 14:18:24,517 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:24,517 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:18:24,517 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:24,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:24,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1123253001, now seen corresponding path program 1 times [2019-10-07 14:18:24,518 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:24,518 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:24,519 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:24,523 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:24,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:24,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:18:24,708 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:24,708 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:24,708 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:18:24,709 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:18:24,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:18:24,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:18:24,711 INFO L87 Difference]: Start difference. First operand 5559 states and 8504 transitions. Second operand 4 states. [2019-10-07 14:18:26,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:26,817 INFO L93 Difference]: Finished difference Result 16743 states and 26151 transitions. [2019-10-07 14:18:26,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:18:26,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2019-10-07 14:18:26,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:26,908 INFO L225 Difference]: With dead ends: 16743 [2019-10-07 14:18:26,908 INFO L226 Difference]: Without dead ends: 11229 [2019-10-07 14:18:26,946 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:18:26,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11229 states. [2019-10-07 14:18:27,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11229 to 10978. [2019-10-07 14:18:27,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10978 states. [2019-10-07 14:18:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10978 states to 10978 states and 17018 transitions. [2019-10-07 14:18:27,634 INFO L78 Accepts]: Start accepts. Automaton has 10978 states and 17018 transitions. Word has length 79 [2019-10-07 14:18:27,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:27,635 INFO L462 AbstractCegarLoop]: Abstraction has 10978 states and 17018 transitions. [2019-10-07 14:18:27,635 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:18:27,635 INFO L276 IsEmpty]: Start isEmpty. Operand 10978 states and 17018 transitions. [2019-10-07 14:18:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-07 14:18:27,638 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:27,638 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:18:27,639 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:27,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:27,639 INFO L82 PathProgramCache]: Analyzing trace with hash -462766802, now seen corresponding path program 1 times [2019-10-07 14:18:27,640 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:27,640 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:27,640 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:27,640 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:27,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:27,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:18:27,868 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:27,868 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:27,868 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:18:27,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:18:27,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:18:27,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:18:27,872 INFO L87 Difference]: Start difference. First operand 10978 states and 17018 transitions. Second operand 4 states. [2019-10-07 14:18:30,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:30,393 INFO L93 Difference]: Finished difference Result 33218 states and 53139 transitions. [2019-10-07 14:18:30,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:18:30,394 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2019-10-07 14:18:30,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:30,628 INFO L225 Difference]: With dead ends: 33218 [2019-10-07 14:18:30,628 INFO L226 Difference]: Without dead ends: 22273 [2019-10-07 14:18:30,706 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:18:30,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22273 states. [2019-10-07 14:18:33,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22273 to 21751. [2019-10-07 14:18:33,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21751 states. [2019-10-07 14:18:34,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21751 states to 21751 states and 34262 transitions. [2019-10-07 14:18:34,011 INFO L78 Accepts]: Start accepts. Automaton has 21751 states and 34262 transitions. Word has length 80 [2019-10-07 14:18:34,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:34,012 INFO L462 AbstractCegarLoop]: Abstraction has 21751 states and 34262 transitions. [2019-10-07 14:18:34,012 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:18:34,013 INFO L276 IsEmpty]: Start isEmpty. Operand 21751 states and 34262 transitions. [2019-10-07 14:18:34,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-10-07 14:18:34,025 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:34,025 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:18:34,026 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:34,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:34,027 INFO L82 PathProgramCache]: Analyzing trace with hash 868283523, now seen corresponding path program 1 times [2019-10-07 14:18:34,027 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:34,027 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:34,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:34,028 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:34,502 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-07 14:18:34,503 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:34,503 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:18:34,503 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 14:18:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:35,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 3688 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-07 14:18:35,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:18:35,900 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-07 14:18:35,900 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:18:36,411 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-10-07 14:18:36,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:36,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:37,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:37,238 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-10-07 14:18:37,356 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:18:37,401 INFO L162 IcfgInterpreter]: Started Sifa with 158 locations of interest [2019-10-07 14:18:37,401 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:18:37,410 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:18:37,420 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:18:37,421 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:19:35,728 WARN L191 SmtUtils]: Spent 506.00 ms on a formula simplification that was a NOOP. DAG size: 775 [2019-10-07 14:19:41,505 WARN L191 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 430 DAG size of output: 347 [2019-10-07 14:19:41,933 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 868 [2019-10-07 14:19:42,477 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 868 [2019-10-07 14:19:42,740 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 868 [2019-10-07 14:19:43,388 WARN L191 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:19:44,052 WARN L191 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:19:44,558 WARN L191 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:19:45,136 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:19:46,899 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1062 DAG size of output: 1060 [2019-10-07 14:19:47,408 WARN L191 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:19:47,998 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:19:48,501 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:19:49,062 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:19:49,604 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2019-10-07 14:19:49,629 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 397 for LOIs [2019-10-07 14:19:49,882 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 743 [2019-10-07 14:19:49,995 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 743 [2019-10-07 14:19:50,377 WARN L191 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 935 [2019-10-07 14:19:50,379 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1110 for LOIs [2019-10-07 14:19:50,894 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:19:51,386 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:19:51,524 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:19:52,344 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:19:52,851 WARN L191 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:19:53,343 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:19:53,485 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:19:54,310 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:19:54,884 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:19:55,384 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:19:55,534 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:19:56,364 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:19:57,374 WARN L191 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 1286 DAG size of output: 1110 [2019-10-07 14:19:57,844 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:19:58,127 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:19:59,011 WARN L191 SmtUtils]: Spent 881.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:19:59,514 WARN L191 SmtUtils]: Spent 485.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:19:59,993 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:00,120 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:00,939 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:01,444 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:01,926 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:02,060 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:02,875 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:03,361 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:03,855 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:03,986 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:04,806 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:05,293 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:05,796 WARN L191 SmtUtils]: Spent 500.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:05,926 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:06,745 WARN L191 SmtUtils]: Spent 817.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:07,244 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:07,727 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:07,883 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:08,728 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:09,212 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:09,689 WARN L191 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:09,821 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:10,662 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:11,155 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:11,636 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:11,768 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:12,570 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:13,070 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:13,534 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:13,663 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:14,456 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:14,939 WARN L191 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:15,423 WARN L191 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:20:15,574 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:16,400 WARN L191 SmtUtils]: Spent 824.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:17,284 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:18,094 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:18,250 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:19,056 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:20,602 WARN L191 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:20:21,427 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:21,587 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:22,448 WARN L191 SmtUtils]: Spent 859.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:23,267 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:24,099 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:24,226 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:25,046 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:25,930 WARN L191 SmtUtils]: Spent 844.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:26,774 WARN L191 SmtUtils]: Spent 840.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:26,913 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:20:27,744 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:28,628 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:29,479 WARN L191 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:29,627 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:20:30,478 WARN L191 SmtUtils]: Spent 849.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:31,314 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:32,151 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:32,285 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:20:33,137 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:34,008 WARN L191 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:20:34,808 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:20:34,946 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:20:35,763 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:36,592 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:37,395 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:37,528 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:20:38,373 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:20:39,399 WARN L191 SmtUtils]: Spent 992.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:40,218 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:40,355 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:20:41,195 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:20:42,765 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 14:20:43,589 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:43,735 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:20:44,562 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:20:45,374 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:46,164 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:46,293 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:20:47,122 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:20:48,696 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:20:49,519 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:49,664 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:50,482 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:52,708 WARN L191 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:20:53,512 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:53,645 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:54,449 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:55,259 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:56,049 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:56,179 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:20:56,986 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:20:58,881 WARN L191 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:59,736 WARN L191 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:20:59,879 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:00,723 WARN L191 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:02,304 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 14:21:03,128 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:03,271 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:04,076 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:05,578 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 14:21:06,414 WARN L191 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:06,549 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:07,343 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:08,763 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:21:09,559 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:21:09,719 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:10,514 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:11,889 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 14:21:12,706 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:12,843 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:13,644 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:21:15,128 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:21:15,920 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:16,055 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:21:16,860 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:18,319 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:21:19,116 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:19,249 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:21:20,064 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:20,859 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:21,676 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:21,806 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:21:22,596 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:24,068 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:21:24,874 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:25,010 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:21:25,811 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:27,253 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:21:28,085 WARN L191 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:28,218 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:21:29,019 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:29,829 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:30,619 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:30,746 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:21:31,545 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:32,944 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:21:33,735 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:21:33,885 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:34,683 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:36,192 WARN L191 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 14:21:37,003 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:37,142 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:37,971 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:39,351 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:21:40,148 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:21:40,276 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:41,089 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:42,561 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:21:43,364 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:21:43,499 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:44,314 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:45,747 WARN L191 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1292 DAG size of output: 1288 [2019-10-07 14:21:46,549 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:46,692 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:47,501 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:21:48,954 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:21:49,752 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:49,884 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:21:50,681 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:52,128 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:21:52,926 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:53,058 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:21:53,864 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:54,655 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:55,481 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:55,612 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:21:56,414 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:21:57,244 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:58,057 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:58,191 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:21:58,995 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:21:59,819 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:00,608 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:00,757 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:01,571 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:02,414 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:03,225 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:03,356 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:04,189 WARN L191 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:05,666 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1295 DAG size of output: 1288 [2019-10-07 14:22:06,481 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:06,622 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:07,441 WARN L191 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:08,834 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1297 DAG size of output: 1290 [2019-10-07 14:22:09,650 WARN L191 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:22:09,785 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:10,583 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:22:12,026 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1297 DAG size of output: 1290 [2019-10-07 14:22:12,844 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:22:12,983 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:13,820 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:22:15,202 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1297 DAG size of output: 1290 [2019-10-07 14:22:16,034 WARN L191 SmtUtils]: Spent 828.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:22:16,322 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:17,163 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1290 [2019-10-07 14:22:18,931 WARN L191 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:22:19,749 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:19,885 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:22:20,698 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:22,173 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:22:22,976 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:23,113 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:22:23,936 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:24,740 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:25,576 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:25,704 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:22:26,516 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:28,064 WARN L191 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 14:22:28,881 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:29,025 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:29,860 WARN L191 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:31,353 WARN L191 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1288 [2019-10-07 14:22:32,188 WARN L191 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:32,328 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:33,150 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:33,993 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:34,835 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:34,970 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:35,808 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:37,191 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:22:38,032 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:22:38,169 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:38,982 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:40,472 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:22:41,273 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:41,422 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:22:42,207 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:43,624 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:22:44,435 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:44,589 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:22:45,384 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:46,192 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:46,987 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:47,123 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:22:47,915 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:49,288 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:22:50,093 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:22:50,237 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:51,038 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:52,683 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1290 DAG size of output: 1286 [2019-10-07 14:22:53,489 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1286 [2019-10-07 14:22:53,623 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-07 14:22:54,423 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1288 [2019-10-07 14:22:55,923 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:22:56,759 WARN L191 SmtUtils]: Spent 833.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:56,917 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:22:57,730 WARN L191 SmtUtils]: Spent 811.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:22:59,196 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1286 DAG size of output: 1284 [2019-10-07 14:23:00,018 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:23:00,158 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:23:00,975 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:23:00,982 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1134 for LOIs [2019-10-07 14:23:01,504 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 14:23:02,022 WARN L191 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 1134 [2019-10-07 14:23:02,152 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:23:02,985 WARN L191 SmtUtils]: Spent 831.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:23:03,559 WARN L191 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:23:04,110 WARN L191 SmtUtils]: Spent 548.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:23:04,238 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:23:05,050 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:23:06,034 WARN L191 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 1286 DAG size of output: 1144 [2019-10-07 14:23:06,575 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:23:06,709 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:23:07,515 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:23:08,061 WARN L191 SmtUtils]: Spent 530.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:23:08,599 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:23:08,730 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:23:09,537 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:23:10,079 WARN L191 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:23:10,616 WARN L191 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:23:10,744 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:23:11,548 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:23:12,082 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:23:12,625 WARN L191 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 1144 [2019-10-07 14:23:12,753 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 461 [2019-10-07 14:23:13,563 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1284 [2019-10-07 14:23:13,850 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:23:13,852 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 14:23:13,858 INFO L168 Benchmark]: Toolchain (without parser) took 311480.42 ms. Allocated memory was 145.2 MB in the beginning and 2.8 GB in the end (delta: 2.7 GB). Free memory was 100.3 MB in the beginning and 2.2 GB in the end (delta: -2.1 GB). Peak memory consumption was 611.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:23:13,859 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 14:23:13,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1161.22 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.0 MB in the beginning and 142.1 MB in the end (delta: -42.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2019-10-07 14:23:13,859 INFO L168 Benchmark]: Boogie Preprocessor took 253.24 ms. Allocated memory is still 203.4 MB. Free memory was 142.1 MB in the beginning and 133.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:23:13,859 INFO L168 Benchmark]: RCFGBuilder took 4959.03 ms. Allocated memory was 203.4 MB in the beginning and 298.8 MB in the end (delta: 95.4 MB). Free memory was 133.0 MB in the beginning and 201.5 MB in the end (delta: -68.4 MB). Peak memory consumption was 154.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:23:13,860 INFO L168 Benchmark]: TraceAbstraction took 305102.13 ms. Allocated memory was 298.8 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 201.5 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 559.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:23:13,862 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1161.22 ms. Allocated memory was 145.2 MB in the beginning and 203.4 MB in the end (delta: 58.2 MB). Free memory was 100.0 MB in the beginning and 142.1 MB in the end (delta: -42.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 253.24 ms. Allocated memory is still 203.4 MB. Free memory was 142.1 MB in the beginning and 133.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4959.03 ms. Allocated memory was 203.4 MB in the beginning and 298.8 MB in the end (delta: 95.4 MB). Free memory was 133.0 MB in the beginning and 201.5 MB in the end (delta: -68.4 MB). Peak memory consumption was 154.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 305102.13 ms. Allocated memory was 298.8 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 201.5 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 559.5 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...