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_spec9_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:34:44,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:34:44,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:34:44,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:34:44,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:34:44,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:34:44,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:34:44,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:34:44,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:34:44,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:34:44,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:34:44,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:34:44,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:34:44,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:34:44,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:34:44,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:34:44,153 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:34:44,154 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:34:44,156 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:34:44,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:34:44,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:34:44,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:34:44,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:34:44,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:34:44,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:34:44,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:34:44,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:34:44,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:34:44,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:34:44,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:34:44,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:34:44,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:34:44,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:34:44,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:34:44,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:34:44,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:34:44,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:34:44,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:34:44,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:34:44,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:34:44,173 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:34:44,173 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 14:34:44,187 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:34:44,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:34:44,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:34:44,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:34:44,189 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:34:44,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:34:44,190 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:34:44,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:34:44,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:34:44,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:34:44,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:34:44,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:34:44,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:34:44,191 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:34:44,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:34:44,192 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:34:44,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:34:44,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:34:44,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:34:44,192 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:34:44,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:34:44,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:34:44,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:34:44,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:34:44,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:34:44,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:34:44,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:34:44,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:34:44,194 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 14:34:44,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:34:44,488 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:34:44,492 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:34:44,493 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:34:44,493 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:34:44,494 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product27.cil.c [2019-10-07 14:34:44,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccd225861/0129decdc64244558f23583d979cf5a2/FLAG136b7cd74 [2019-10-07 14:34:45,239 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:34:45,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product27.cil.c [2019-10-07 14:34:45,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccd225861/0129decdc64244558f23583d979cf5a2/FLAG136b7cd74 [2019-10-07 14:34:45,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ccd225861/0129decdc64244558f23583d979cf5a2 [2019-10-07 14:34:45,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:34:45,413 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:34:45,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:34:45,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:34:45,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:34:45,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:34:45" (1/1) ... [2019-10-07 14:34:45,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37d6011a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:45, skipping insertion in model container [2019-10-07 14:34:45,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:34:45" (1/1) ... [2019-10-07 14:34:45,430 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:34:45,515 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:34:46,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:34:46,207 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:34:46,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:34:46,433 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:34:46,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:46 WrapperNode [2019-10-07 14:34:46,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:34:46,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:34:46,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:34:46,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:34:46,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:46" (1/1) ... [2019-10-07 14:34:46,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:46" (1/1) ... [2019-10-07 14:34:46,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:46" (1/1) ... [2019-10-07 14:34:46,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:46" (1/1) ... [2019-10-07 14:34:46,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:46" (1/1) ... [2019-10-07 14:34:46,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:46" (1/1) ... [2019-10-07 14:34:46,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:46" (1/1) ... [2019-10-07 14:34:46,606 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:34:46,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:34:46,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:34:46,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:34:46,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:46" (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 14:34:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:34:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:34:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:34:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:34:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:34:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:34:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:34:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:34:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:34:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:34:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:34:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:34:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:34:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:34:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:34:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:34:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:34:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:34:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:34:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:34:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:34:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:34:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:34:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:34:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:34:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:34:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:34:46,701 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:34:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:34:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:34:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:34:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:34:46,702 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:34:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:34:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:34:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:34:46,703 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:34:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:34:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:34:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:34:46,704 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:34:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:34:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:34:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:34:46,705 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:34:46,706 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:34:46,706 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:34:46,706 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:34:46,706 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:34:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:34:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:34:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:34:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:34:46,707 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:34:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:34:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:34:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:34:46,708 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:34:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:34:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:34:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:34:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:34:46,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:34:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:34:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:34:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:34:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:34:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:34:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:34:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:34:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:34:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:34:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:34:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:34:46,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:34:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:34:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:34:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:34:46,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:34:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:34:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:34:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:34:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:34:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:34:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:34:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:34:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:34:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:34:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:34:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:34:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:34:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:34:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:34:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:34:46,715 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:34:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:34:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:34:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:34:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:34:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:34:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:34:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:34:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:34:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:34:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:34:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:34:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:34:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:34:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:34:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:34:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:34:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:34:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:34:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:34:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:34:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:34:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:34:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:34:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:34:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:34:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:34:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:34:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:34:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:34:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:34:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:34:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:34:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:34:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:34:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:34:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:34:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:34:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:34:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:34:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:34:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:34:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:34:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:34:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:34:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:34:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:34:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:34:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:34:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:34:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:34:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:34:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:34:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:34:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:34:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:34:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:34:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:34:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:34:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:34:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:34:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:34:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:34:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:34:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:34:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:34:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:34:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:34:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:34:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:34:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:34:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:34:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:34:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:34:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:34:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:34:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:34:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:34:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:34:51,504 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:34:51,504 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:34:51,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:34:51 BoogieIcfgContainer [2019-10-07 14:34:51,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:34:51,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:34:51,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:34:51,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:34:51,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:34:45" (1/3) ... [2019-10-07 14:34:51,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b7021a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:34:51, skipping insertion in model container [2019-10-07 14:34:51,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:34:46" (2/3) ... [2019-10-07 14:34:51,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b7021a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:34:51, skipping insertion in model container [2019-10-07 14:34:51,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:34:51" (3/3) ... [2019-10-07 14:34:51,568 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product27.cil.c [2019-10-07 14:34:51,578 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:34:51,587 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:34:51,600 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:34:51,643 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:34:51,643 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:34:51,644 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:34:51,644 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:34:51,644 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:34:51,644 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:34:51,644 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:34:51,644 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:34:51,697 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states. [2019-10-07 14:34:51,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-07 14:34:51,734 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:34:51,735 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:34:51,737 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:34:51,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:34:51,742 INFO L82 PathProgramCache]: Analyzing trace with hash 770298132, now seen corresponding path program 1 times [2019-10-07 14:34:51,750 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:34:51,750 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:51,751 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:51,751 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:51,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:34:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:52,361 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:34:52,362 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:52,363 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:34:52,363 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:34:52,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:34:52,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:34:52,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:34:52,388 INFO L87 Difference]: Start difference. First operand 567 states. Second operand 2 states. [2019-10-07 14:34:52,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:34:52,504 INFO L93 Difference]: Finished difference Result 470 states and 694 transitions. [2019-10-07 14:34:52,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:34:52,506 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 112 [2019-10-07 14:34:52,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:34:52,540 INFO L225 Difference]: With dead ends: 470 [2019-10-07 14:34:52,540 INFO L226 Difference]: Without dead ends: 436 [2019-10-07 14:34:52,548 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 14:34:52,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2019-10-07 14:34:52,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2019-10-07 14:34:52,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2019-10-07 14:34:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 643 transitions. [2019-10-07 14:34:52,676 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 643 transitions. Word has length 112 [2019-10-07 14:34:52,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:34:52,678 INFO L462 AbstractCegarLoop]: Abstraction has 436 states and 643 transitions. [2019-10-07 14:34:52,679 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:34:52,679 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 643 transitions. [2019-10-07 14:34:52,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-10-07 14:34:52,685 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:34:52,685 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:34:52,686 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:34:52,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:34:52,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1750858834, now seen corresponding path program 1 times [2019-10-07 14:34:52,686 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:34:52,686 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:52,687 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:52,687 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:52,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:34:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:53,019 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:34:53,020 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:53,020 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:34:53,020 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:34:53,023 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:34:53,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:34:53,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:34:53,024 INFO L87 Difference]: Start difference. First operand 436 states and 643 transitions. Second operand 7 states. [2019-10-07 14:34:56,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:34:56,594 INFO L93 Difference]: Finished difference Result 1235 states and 1866 transitions. [2019-10-07 14:34:56,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:34:56,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2019-10-07 14:34:56,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:34:56,602 INFO L225 Difference]: With dead ends: 1235 [2019-10-07 14:34:56,602 INFO L226 Difference]: Without dead ends: 841 [2019-10-07 14:34:56,609 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:34:56,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2019-10-07 14:34:56,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 816. [2019-10-07 14:34:56,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2019-10-07 14:34:56,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 1229 transitions. [2019-10-07 14:34:56,683 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 1229 transitions. Word has length 113 [2019-10-07 14:34:56,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:34:56,684 INFO L462 AbstractCegarLoop]: Abstraction has 816 states and 1229 transitions. [2019-10-07 14:34:56,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:34:56,685 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 1229 transitions. [2019-10-07 14:34:56,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:34:56,689 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:34:56,689 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:34:56,690 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:34:56,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:34:56,690 INFO L82 PathProgramCache]: Analyzing trace with hash -748436286, now seen corresponding path program 1 times [2019-10-07 14:34:56,690 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:34:56,690 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:56,691 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:56,691 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:56,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:34:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:56,984 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:34:56,984 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:56,985 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:34:56,985 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:34:56,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:34:56,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:34:56,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:34:56,986 INFO L87 Difference]: Start difference. First operand 816 states and 1229 transitions. Second operand 3 states. [2019-10-07 14:34:57,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:34:57,098 INFO L93 Difference]: Finished difference Result 2322 states and 3567 transitions. [2019-10-07 14:34:57,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:34:57,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-10-07 14:34:57,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:34:57,112 INFO L225 Difference]: With dead ends: 2322 [2019-10-07 14:34:57,113 INFO L226 Difference]: Without dead ends: 1548 [2019-10-07 14:34:57,117 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:34:57,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2019-10-07 14:34:57,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1516. [2019-10-07 14:34:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2019-10-07 14:34:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2325 transitions. [2019-10-07 14:34:57,209 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2325 transitions. Word has length 117 [2019-10-07 14:34:57,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:34:57,210 INFO L462 AbstractCegarLoop]: Abstraction has 1516 states and 2325 transitions. [2019-10-07 14:34:57,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:34:57,210 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2325 transitions. [2019-10-07 14:34:57,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:34:57,214 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:34:57,214 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:34:57,214 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:34:57,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:34:57,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1727988114, now seen corresponding path program 1 times [2019-10-07 14:34:57,215 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:34:57,215 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:57,215 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:57,216 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:57,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:34:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:57,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:34:57,364 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:57,364 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:34:57,365 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:34:57,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:34:57,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:34:57,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:34:57,366 INFO L87 Difference]: Start difference. First operand 1516 states and 2325 transitions. Second operand 3 states. [2019-10-07 14:34:57,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:34:57,519 INFO L93 Difference]: Finished difference Result 4423 states and 6892 transitions. [2019-10-07 14:34:57,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:34:57,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-07 14:34:57,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:34:57,541 INFO L225 Difference]: With dead ends: 4423 [2019-10-07 14:34:57,542 INFO L226 Difference]: Without dead ends: 2950 [2019-10-07 14:34:57,549 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:34:57,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2950 states. [2019-10-07 14:34:57,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2950 to 2917. [2019-10-07 14:34:57,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2917 states. [2019-10-07 14:34:57,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 4539 transitions. [2019-10-07 14:34:57,730 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 4539 transitions. Word has length 118 [2019-10-07 14:34:57,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:34:57,734 INFO L462 AbstractCegarLoop]: Abstraction has 2917 states and 4539 transitions. [2019-10-07 14:34:57,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:34:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 4539 transitions. [2019-10-07 14:34:57,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:34:57,740 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:34:57,741 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:34:57,741 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:34:57,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:34:57,741 INFO L82 PathProgramCache]: Analyzing trace with hash -2029319804, now seen corresponding path program 1 times [2019-10-07 14:34:57,742 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:34:57,742 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:57,742 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:57,742 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:57,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:34:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:34:57,963 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:57,963 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:34:57,964 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:34:57,964 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:34:57,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:34:57,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:34:57,965 INFO L87 Difference]: Start difference. First operand 2917 states and 4539 transitions. Second operand 3 states. [2019-10-07 14:34:58,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:34:58,393 INFO L93 Difference]: Finished difference Result 8626 states and 13653 transitions. [2019-10-07 14:34:58,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:34:58,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-07 14:34:58,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:34:58,442 INFO L225 Difference]: With dead ends: 8626 [2019-10-07 14:34:58,442 INFO L226 Difference]: Without dead ends: 5754 [2019-10-07 14:34:58,459 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:34:58,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2019-10-07 14:34:58,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5720. [2019-10-07 14:34:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5720 states. [2019-10-07 14:34:58,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5720 states to 5720 states and 9043 transitions. [2019-10-07 14:34:58,770 INFO L78 Accepts]: Start accepts. Automaton has 5720 states and 9043 transitions. Word has length 119 [2019-10-07 14:34:58,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:34:58,771 INFO L462 AbstractCegarLoop]: Abstraction has 5720 states and 9043 transitions. [2019-10-07 14:34:58,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:34:58,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5720 states and 9043 transitions. [2019-10-07 14:34:58,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:34:58,774 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:34:58,775 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:34:58,775 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:34:58,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:34:58,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1514303600, now seen corresponding path program 1 times [2019-10-07 14:34:58,776 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:34:58,776 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:58,776 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:58,776 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:58,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:34:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:58,920 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:34:58,920 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:58,921 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:34:58,921 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:34:58,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:34:58,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:34:58,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:34:58,922 INFO L87 Difference]: Start difference. First operand 5720 states and 9043 transitions. Second operand 3 states. [2019-10-07 14:34:59,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:34:59,447 INFO L93 Difference]: Finished difference Result 17033 states and 27568 transitions. [2019-10-07 14:34:59,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:34:59,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2019-10-07 14:34:59,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:34:59,562 INFO L225 Difference]: With dead ends: 17033 [2019-10-07 14:34:59,562 INFO L226 Difference]: Without dead ends: 11362 [2019-10-07 14:34:59,598 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:34:59,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11362 states. [2019-10-07 14:35:00,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11362 to 11327. [2019-10-07 14:35:00,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11327 states. [2019-10-07 14:35:00,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11327 states to 11327 states and 18327 transitions. [2019-10-07 14:35:00,292 INFO L78 Accepts]: Start accepts. Automaton has 11327 states and 18327 transitions. Word has length 120 [2019-10-07 14:35:00,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:00,293 INFO L462 AbstractCegarLoop]: Abstraction has 11327 states and 18327 transitions. [2019-10-07 14:35:00,293 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:35:00,293 INFO L276 IsEmpty]: Start isEmpty. Operand 11327 states and 18327 transitions. [2019-10-07 14:35:00,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:35:00,296 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:00,297 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:00,297 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:00,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:00,298 INFO L82 PathProgramCache]: Analyzing trace with hash -302516666, now seen corresponding path program 1 times [2019-10-07 14:35:00,298 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:00,298 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:00,298 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:00,298 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:00,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:35:00,441 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:00,442 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:00,442 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:35:00,442 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:35:00,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:35:00,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:00,443 INFO L87 Difference]: Start difference. First operand 11327 states and 18327 transitions. Second operand 3 states. [2019-10-07 14:35:00,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:00,907 INFO L93 Difference]: Finished difference Result 12064 states and 19602 transitions. [2019-10-07 14:35:00,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:35:00,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-10-07 14:35:00,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:01,059 INFO L225 Difference]: With dead ends: 12064 [2019-10-07 14:35:01,059 INFO L226 Difference]: Without dead ends: 12051 [2019-10-07 14:35:01,068 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:35:01,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12051 states. [2019-10-07 14:35:01,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12051 to 12021. [2019-10-07 14:35:01,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12021 states. [2019-10-07 14:35:01,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12021 states to 12021 states and 19540 transitions. [2019-10-07 14:35:01,704 INFO L78 Accepts]: Start accepts. Automaton has 12021 states and 19540 transitions. Word has length 121 [2019-10-07 14:35:01,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:01,707 INFO L462 AbstractCegarLoop]: Abstraction has 12021 states and 19540 transitions. [2019-10-07 14:35:01,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:35:01,707 INFO L276 IsEmpty]: Start isEmpty. Operand 12021 states and 19540 transitions. [2019-10-07 14:35:01,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-07 14:35:01,714 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:01,714 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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 14:35:01,715 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:01,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:01,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1945526170, now seen corresponding path program 1 times [2019-10-07 14:35:01,715 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:01,716 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:01,716 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:01,716 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:01,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:01,888 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:35:01,889 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:01,889 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:35:01,889 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:35:01,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:35:01,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:35:01,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:35:01,891 INFO L87 Difference]: Start difference. First operand 12021 states and 19540 transitions. Second operand 5 states. [2019-10-07 14:35:02,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:02,396 INFO L93 Difference]: Finished difference Result 24186 states and 40014 transitions. [2019-10-07 14:35:02,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:35:02,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2019-10-07 14:35:02,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:02,470 INFO L225 Difference]: With dead ends: 24186 [2019-10-07 14:35:02,470 INFO L226 Difference]: Without dead ends: 12208 [2019-10-07 14:35:02,528 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:35:02,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12208 states. [2019-10-07 14:35:03,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12208 to 12205. [2019-10-07 14:35:03,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12205 states. [2019-10-07 14:35:03,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12205 states to 12205 states and 19886 transitions. [2019-10-07 14:35:03,098 INFO L78 Accepts]: Start accepts. Automaton has 12205 states and 19886 transitions. Word has length 186 [2019-10-07 14:35:03,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:03,099 INFO L462 AbstractCegarLoop]: Abstraction has 12205 states and 19886 transitions. [2019-10-07 14:35:03,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:35:03,099 INFO L276 IsEmpty]: Start isEmpty. Operand 12205 states and 19886 transitions. [2019-10-07 14:35:03,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 14:35:03,106 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:03,106 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:03,106 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:03,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:03,107 INFO L82 PathProgramCache]: Analyzing trace with hash -690902680, now seen corresponding path program 1 times [2019-10-07 14:35:03,107 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:03,107 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:03,107 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:03,107 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:03,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:03,369 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:35:03,369 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:03,370 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:03,370 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 14:35:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:04,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 3443 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:35:04,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-07 14:35:04,976 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:05,553 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:35:05,554 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:35:05,555 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:35:05,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:35:05,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:35:05,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:35:05,557 INFO L87 Difference]: Start difference. First operand 12205 states and 19886 transitions. Second operand 4 states. [2019-10-07 14:35:06,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:06,363 INFO L93 Difference]: Finished difference Result 25693 states and 43024 transitions. [2019-10-07 14:35:06,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:35:06,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2019-10-07 14:35:06,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:06,470 INFO L225 Difference]: With dead ends: 25693 [2019-10-07 14:35:06,470 INFO L226 Difference]: Without dead ends: 13531 [2019-10-07 14:35:06,515 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 381 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-10-07 14:35:06,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13531 states. [2019-10-07 14:35:07,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13531 to 13531. [2019-10-07 14:35:07,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13531 states. [2019-10-07 14:35:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13531 states to 13531 states and 22368 transitions. [2019-10-07 14:35:07,356 INFO L78 Accepts]: Start accepts. Automaton has 13531 states and 22368 transitions. Word has length 191 [2019-10-07 14:35:07,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:07,356 INFO L462 AbstractCegarLoop]: Abstraction has 13531 states and 22368 transitions. [2019-10-07 14:35:07,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:35:07,357 INFO L276 IsEmpty]: Start isEmpty. Operand 13531 states and 22368 transitions. [2019-10-07 14:35:07,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-07 14:35:07,369 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:07,369 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:07,586 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:07,587 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:07,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:07,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1861989226, now seen corresponding path program 1 times [2019-10-07 14:35:07,588 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:07,588 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:07,588 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:07,588 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:07,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:07,824 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:35:07,824 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:07,824 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:08,537 INFO L256 TraceCheckSpWp]: Trace formula consists of 3448 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:35:08,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:08,609 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-07 14:35:08,609 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:09,007 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:35:09,203 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-10-07 14:35:09,204 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:35:09,204 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:35:09,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:35:09,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:35:09,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:09,205 INFO L87 Difference]: Start difference. First operand 13531 states and 22368 transitions. Second operand 4 states. [2019-10-07 14:35:09,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:09,778 INFO L93 Difference]: Finished difference Result 28345 states and 47954 transitions. [2019-10-07 14:35:09,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:35:09,779 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2019-10-07 14:35:09,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:09,851 INFO L225 Difference]: With dead ends: 28345 [2019-10-07 14:35:09,851 INFO L226 Difference]: Without dead ends: 14857 [2019-10-07 14:35:09,887 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 389 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:35:09,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14857 states. [2019-10-07 14:35:10,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14857 to 14857. [2019-10-07 14:35:10,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14857 states. [2019-10-07 14:35:10,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14857 states to 14857 states and 24850 transitions. [2019-10-07 14:35:10,536 INFO L78 Accepts]: Start accepts. Automaton has 14857 states and 24850 transitions. Word has length 196 [2019-10-07 14:35:10,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:10,538 INFO L462 AbstractCegarLoop]: Abstraction has 14857 states and 24850 transitions. [2019-10-07 14:35:10,539 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:35:10,539 INFO L276 IsEmpty]: Start isEmpty. Operand 14857 states and 24850 transitions. [2019-10-07 14:35:10,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-07 14:35:10,551 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:10,551 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:10,764 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:10,765 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:10,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:10,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1726833670, now seen corresponding path program 1 times [2019-10-07 14:35:10,766 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:10,766 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:10,766 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:10,767 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:10,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:35:11,385 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:11,385 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:11,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:12,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 3452 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:35:12,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-07 14:35:12,129 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:12,522 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2019-10-07 14:35:12,523 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:35:12,523 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:35:12,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:35:12,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:35:12,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:12,524 INFO L87 Difference]: Start difference. First operand 14857 states and 24850 transitions. Second operand 4 states. [2019-10-07 14:35:13,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:13,052 INFO L93 Difference]: Finished difference Result 30997 states and 52884 transitions. [2019-10-07 14:35:13,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:35:13,052 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 200 [2019-10-07 14:35:13,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:13,141 INFO L225 Difference]: With dead ends: 30997 [2019-10-07 14:35:13,141 INFO L226 Difference]: Without dead ends: 16183 [2019-10-07 14:35:13,186 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 397 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:35:13,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16183 states. [2019-10-07 14:35:14,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16183 to 16183. [2019-10-07 14:35:14,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16183 states. [2019-10-07 14:35:14,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16183 states to 16183 states and 27332 transitions. [2019-10-07 14:35:14,776 INFO L78 Accepts]: Start accepts. Automaton has 16183 states and 27332 transitions. Word has length 200 [2019-10-07 14:35:14,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:14,776 INFO L462 AbstractCegarLoop]: Abstraction has 16183 states and 27332 transitions. [2019-10-07 14:35:14,777 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:35:14,777 INFO L276 IsEmpty]: Start isEmpty. Operand 16183 states and 27332 transitions. [2019-10-07 14:35:14,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-10-07 14:35:14,785 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:14,785 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:14,994 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:14,995 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:14,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:14,996 INFO L82 PathProgramCache]: Analyzing trace with hash 2072407624, now seen corresponding path program 1 times [2019-10-07 14:35:14,996 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:14,996 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:14,997 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:14,997 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:14,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:15,201 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:35:15,201 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:15,201 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:15,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 3455 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:35:15,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:16,029 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-07 14:35:16,029 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:16,431 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:35:16,432 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:35:16,432 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:35:16,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:35:16,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:35:16,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:35:16,433 INFO L87 Difference]: Start difference. First operand 16183 states and 27332 transitions. Second operand 4 states. [2019-10-07 14:35:16,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:16,954 INFO L93 Difference]: Finished difference Result 33649 states and 57814 transitions. [2019-10-07 14:35:16,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:35:16,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2019-10-07 14:35:16,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:17,025 INFO L225 Difference]: With dead ends: 33649 [2019-10-07 14:35:17,025 INFO L226 Difference]: Without dead ends: 17509 [2019-10-07 14:35:17,061 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 403 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:35:17,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17509 states. [2019-10-07 14:35:17,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17509 to 17509. [2019-10-07 14:35:17,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17509 states. [2019-10-07 14:35:17,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17509 states to 17509 states and 29814 transitions. [2019-10-07 14:35:17,728 INFO L78 Accepts]: Start accepts. Automaton has 17509 states and 29814 transitions. Word has length 203 [2019-10-07 14:35:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:17,728 INFO L462 AbstractCegarLoop]: Abstraction has 17509 states and 29814 transitions. [2019-10-07 14:35:17,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:35:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 17509 states and 29814 transitions. [2019-10-07 14:35:17,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-07 14:35:17,735 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:17,736 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:17,953 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:17,953 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:17,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:17,953 INFO L82 PathProgramCache]: Analyzing trace with hash -549228426, now seen corresponding path program 1 times [2019-10-07 14:35:17,954 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:17,954 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:17,954 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:17,954 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:17,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:18,183 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:35:18,183 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:18,184 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:18,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:18,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 3451 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-07 14:35:18,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:18,908 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:35:18,909 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:35:19,559 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:35:19,559 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [9] total 17 [2019-10-07 14:35:19,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:35:19,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:35:19,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:35:19,561 INFO L87 Difference]: Start difference. First operand 17509 states and 29814 transitions. Second operand 10 states. [2019-10-07 14:35:22,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:22,164 INFO L93 Difference]: Finished difference Result 40969 states and 69346 transitions. [2019-10-07 14:35:22,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:35:22,165 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2019-10-07 14:35:22,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:22,246 INFO L225 Difference]: With dead ends: 40969 [2019-10-07 14:35:22,246 INFO L226 Difference]: Without dead ends: 23518 [2019-10-07 14:35:22,281 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 405 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:35:22,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23518 states. [2019-10-07 14:35:23,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23518 to 23214. [2019-10-07 14:35:23,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23214 states. [2019-10-07 14:35:23,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23214 states to 23214 states and 39057 transitions. [2019-10-07 14:35:23,173 INFO L78 Accepts]: Start accepts. Automaton has 23214 states and 39057 transitions. Word has length 205 [2019-10-07 14:35:23,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:23,174 INFO L462 AbstractCegarLoop]: Abstraction has 23214 states and 39057 transitions. [2019-10-07 14:35:23,174 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:35:23,174 INFO L276 IsEmpty]: Start isEmpty. Operand 23214 states and 39057 transitions. [2019-10-07 14:35:23,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-07 14:35:23,184 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:23,185 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:23,407 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:23,407 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:23,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:23,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1804145742, now seen corresponding path program 1 times [2019-10-07 14:35:23,408 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:23,408 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:23,408 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:23,408 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:23,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:23,788 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:35:23,788 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:23,788 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:23,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:24,652 INFO L256 TraceCheckSpWp]: Trace formula consists of 3456 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-07 14:35:24,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:24,823 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:35:24,823 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:25,060 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:35:25,798 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:26,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:26,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:26,112 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:26,116 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:26,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:26,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:26,268 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:26,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:26,369 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:35:26,370 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:35:26,370 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [9] total 21 [2019-10-07 14:35:26,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 14:35:26,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 14:35:26,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2019-10-07 14:35:26,373 INFO L87 Difference]: Start difference. First operand 23214 states and 39057 transitions. Second operand 14 states. [2019-10-07 14:35:34,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:34,790 INFO L93 Difference]: Finished difference Result 53583 states and 92048 transitions. [2019-10-07 14:35:34,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-07 14:35:34,793 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 208 [2019-10-07 14:35:34,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:34,903 INFO L225 Difference]: With dead ends: 53583 [2019-10-07 14:35:34,903 INFO L226 Difference]: Without dead ends: 30413 [2019-10-07 14:35:34,962 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 407 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=829, Unknown=0, NotChecked=0, Total=992 [2019-10-07 14:35:34,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30413 states. [2019-10-07 14:35:36,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30413 to 29547. [2019-10-07 14:35:36,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29547 states. [2019-10-07 14:35:36,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29547 states to 29547 states and 48434 transitions. [2019-10-07 14:35:36,218 INFO L78 Accepts]: Start accepts. Automaton has 29547 states and 48434 transitions. Word has length 208 [2019-10-07 14:35:36,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:36,219 INFO L462 AbstractCegarLoop]: Abstraction has 29547 states and 48434 transitions. [2019-10-07 14:35:36,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 14:35:36,219 INFO L276 IsEmpty]: Start isEmpty. Operand 29547 states and 48434 transitions. [2019-10-07 14:35:36,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-07 14:35:36,228 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:36,228 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:36,438 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:36,439 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:36,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:36,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1621509727, now seen corresponding path program 1 times [2019-10-07 14:35:36,440 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:36,440 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:36,440 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:36,440 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:36,680 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:35:36,681 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:36,681 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:36,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:37,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 3457 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:35:37,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:37,748 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:35:37,749 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:35:38,189 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:35:38,189 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [9] total 16 [2019-10-07 14:35:38,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:35:38,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:35:38,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:35:38,191 INFO L87 Difference]: Start difference. First operand 29547 states and 48434 transitions. Second operand 9 states. [2019-10-07 14:35:39,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:39,782 INFO L93 Difference]: Finished difference Result 30324 states and 50810 transitions. [2019-10-07 14:35:39,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:35:39,783 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 208 [2019-10-07 14:35:39,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:39,918 INFO L225 Difference]: With dead ends: 30324 [2019-10-07 14:35:39,918 INFO L226 Difference]: Without dead ends: 30206 [2019-10-07 14:35:39,937 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 413 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:35:39,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30206 states. [2019-10-07 14:35:42,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30206 to 29715. [2019-10-07 14:35:42,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29715 states. [2019-10-07 14:35:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29715 states to 29715 states and 48728 transitions. [2019-10-07 14:35:42,258 INFO L78 Accepts]: Start accepts. Automaton has 29715 states and 48728 transitions. Word has length 208 [2019-10-07 14:35:42,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:42,258 INFO L462 AbstractCegarLoop]: Abstraction has 29715 states and 48728 transitions. [2019-10-07 14:35:42,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:35:42,259 INFO L276 IsEmpty]: Start isEmpty. Operand 29715 states and 48728 transitions. [2019-10-07 14:35:42,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-07 14:35:42,267 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:42,268 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:42,484 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:42,485 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:42,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:42,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1455107570, now seen corresponding path program 1 times [2019-10-07 14:35:42,485 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:42,485 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:42,485 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:42,486 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:42,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:42,735 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:35:42,735 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:42,736 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:42,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:43,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 3472 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:35:43,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:43,571 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:35:43,571 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:43,953 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2019-10-07 14:35:43,954 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:35:43,954 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [9] total 12 [2019-10-07 14:35:43,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:35:43,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:35:43,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:35:43,955 INFO L87 Difference]: Start difference. First operand 29715 states and 48728 transitions. Second operand 5 states. [2019-10-07 14:35:44,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:35:44,361 INFO L93 Difference]: Finished difference Result 29833 states and 48860 transitions. [2019-10-07 14:35:44,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:35:44,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2019-10-07 14:35:44,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:35:44,452 INFO L225 Difference]: With dead ends: 29833 [2019-10-07 14:35:44,452 INFO L226 Difference]: Without dead ends: 29715 [2019-10-07 14:35:44,467 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 427 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:35:44,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29715 states. [2019-10-07 14:35:45,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29715 to 29715. [2019-10-07 14:35:45,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29715 states. [2019-10-07 14:35:45,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29715 states to 29715 states and 48632 transitions. [2019-10-07 14:35:45,486 INFO L78 Accepts]: Start accepts. Automaton has 29715 states and 48632 transitions. Word has length 213 [2019-10-07 14:35:45,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:35:45,487 INFO L462 AbstractCegarLoop]: Abstraction has 29715 states and 48632 transitions. [2019-10-07 14:35:45,487 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:35:45,487 INFO L276 IsEmpty]: Start isEmpty. Operand 29715 states and 48632 transitions. [2019-10-07 14:35:45,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2019-10-07 14:35:45,501 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:35:45,501 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:35:45,711 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:45,712 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:35:45,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:35:45,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1473748151, now seen corresponding path program 1 times [2019-10-07 14:35:45,713 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:35:45,713 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:45,713 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:45,714 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:35:45,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:35:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:46,017 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:35:46,018 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:35:46,018 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:35:46,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:35:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:35:46,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 3515 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:35:46,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:35:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:35:46,985 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:35:47,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:47,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:47,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:47,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:47,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:47,705 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:47,708 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:47,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:35:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:35:47,833 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:35:47,881 INFO L162 IcfgInterpreter]: Started Sifa with 192 locations of interest [2019-10-07 14:35:47,881 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:35:47,892 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:35:47,915 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:35:47,915 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:36:35,164 WARN L191 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 764 [2019-10-07 14:36:40,021 WARN L191 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:36:40,514 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:36:40,899 WARN L191 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:36:41,284 WARN L191 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 850 [2019-10-07 14:36:41,924 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:36:42,424 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:36:43,014 WARN L191 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:36:43,570 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:36:44,586 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 1042 DAG size of output: 1040 [2019-10-07 14:36:45,079 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:36:45,723 WARN L191 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:36:46,188 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:36:46,665 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:36:47,180 WARN L191 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 1040 [2019-10-07 14:36:47,200 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 391 for LOIs [2019-10-07 14:36:47,502 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:36:47,615 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 733 [2019-10-07 14:36:47,977 WARN L191 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 923 [2019-10-07 14:36:47,978 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1088 for LOIs [2019-10-07 14:36:48,537 WARN L191 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:48,993 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:49,128 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:36:49,934 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:50,410 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:50,878 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:51,125 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:36:51,909 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:52,397 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:52,857 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:53,133 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:36:54,174 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:55,206 WARN L191 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1088 [2019-10-07 14:36:55,669 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:55,825 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:36:56,615 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:57,078 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:57,629 WARN L191 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:57,751 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:36:58,529 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:58,974 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:59,453 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:36:59,578 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:00,374 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:00,920 WARN L191 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:01,364 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:01,490 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:02,250 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:02,706 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:03,161 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:03,285 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:04,173 WARN L191 SmtUtils]: Spent 886.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:04,641 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:05,097 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:05,228 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:06,013 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:06,479 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:06,946 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:07,070 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:07,943 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:08,412 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:08,874 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:09,000 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:09,786 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:10,240 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:10,777 WARN L191 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:10,902 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:11,699 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:12,153 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:12,600 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1088 [2019-10-07 14:37:12,724 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:13,504 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:14,708 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:15,488 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:15,620 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:16,402 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:17,918 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:37:18,713 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:18,854 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:19,646 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:20,439 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:21,307 WARN L191 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:21,430 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:22,192 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:23,265 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:37:24,058 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:37:24,193 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:37:25,051 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:37:26,400 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:37:27,201 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:37:27,337 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:37:28,216 WARN L191 SmtUtils]: Spent 877.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:37:29,573 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:37:30,383 WARN L191 SmtUtils]: Spent 805.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:37:30,519 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:37:31,317 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:37:32,121 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:37:32,948 WARN L191 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:37:33,117 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:37:33,912 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1269 [2019-10-07 14:37:34,710 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:35,509 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:35,642 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:37:36,425 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:37,259 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:38,058 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:38,185 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:37:38,961 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:39,782 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:40,563 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:40,852 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:37:41,889 WARN L191 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:42,674 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:43,443 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:43,570 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:37:44,384 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 1271 [2019-10-07 14:37:45,949 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:37:46,718 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:46,866 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:47,649 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:49,059 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:37:49,845 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:49,974 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:50,764 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:51,540 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:52,318 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:52,440 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:37:53,208 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:54,625 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:37:55,414 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:37:55,545 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:37:56,328 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:37:57,727 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:37:58,535 WARN L191 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:37:58,666 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:37:59,460 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:00,887 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:38:01,687 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:01,816 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:02,608 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:04,019 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1271 DAG size of output: 1262 [2019-10-07 14:38:04,806 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:38:04,939 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:05,757 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:07,177 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1264 [2019-10-07 14:38:07,978 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:08,114 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:08,907 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:38:10,355 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:11,141 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:11,273 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:12,103 WARN L191 SmtUtils]: Spent 827.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:13,568 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:14,381 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:14,513 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:15,329 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:16,128 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:16,909 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:17,034 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:17,805 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:19,207 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:19,981 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:20,108 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:20,896 WARN L191 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:22,278 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:23,067 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:23,195 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:23,970 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:24,746 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:25,509 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:25,630 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:26,404 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:27,816 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:38:28,629 WARN L191 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:28,760 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:29,558 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:30,830 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:38:31,617 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:38:31,764 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:32,561 WARN L191 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:33,914 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:38:34,737 WARN L191 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:38:34,864 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:35,635 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:37,042 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:38:37,811 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:38:37,945 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:38,736 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:40,105 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:40,862 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:40,986 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:41,742 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:43,111 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:43,872 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:43,998 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:44,776 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:45,536 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:46,315 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:46,437 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:38:47,219 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:48,644 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:38:49,423 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:49,558 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:50,331 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:51,123 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:51,914 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:52,075 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:52,862 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:53,648 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:54,434 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:54,559 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:55,359 WARN L191 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:56,744 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:38:57,549 WARN L191 SmtUtils]: Spent 802.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:38:57,679 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:38:58,487 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:38:59,868 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1264 [2019-10-07 14:39:00,651 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:00,783 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:01,561 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:39:02,999 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1273 DAG size of output: 1264 [2019-10-07 14:39:03,782 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:03,911 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:04,692 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:39:06,089 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1264 [2019-10-07 14:39:06,867 WARN L191 SmtUtils]: Spent 774.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:06,998 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:07,784 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:39:09,227 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:10,020 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:10,148 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:10,949 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:12,368 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:13,173 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:13,308 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:14,088 WARN L191 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:14,886 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:15,672 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:15,800 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:16,585 WARN L191 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:17,941 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:39:18,750 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:18,882 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:19,683 WARN L191 SmtUtils]: Spent 799.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:21,058 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:39:21,855 WARN L191 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:21,987 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:22,804 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:23,595 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:24,412 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:24,541 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:25,381 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:26,829 WARN L191 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1262 [2019-10-07 14:39:27,643 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:39:27,797 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:28,613 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:30,065 WARN L191 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1268 DAG size of output: 1264 [2019-10-07 14:39:30,877 WARN L191 SmtUtils]: Spent 808.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:31,007 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:31,789 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1266 [2019-10-07 14:39:33,194 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:33,979 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:34,105 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:34,874 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:36,292 WARN L191 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:37,071 WARN L191 SmtUtils]: Spent 776.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:37,207 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:37,988 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:39,470 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:40,268 WARN L191 SmtUtils]: Spent 794.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:40,415 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:41,199 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:42,614 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:39:43,407 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:43,535 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:44,325 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:45,134 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:45,944 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:46,070 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:46,903 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:48,397 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 1266 DAG size of output: 1264 [2019-10-07 14:39:49,208 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:49,343 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:50,128 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:50,969 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:51,811 WARN L191 SmtUtils]: Spent 839.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:51,959 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 459 [2019-10-07 14:39:52,750 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1264 [2019-10-07 14:39:52,757 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1114 for LOIs [2019-10-07 14:39:53,285 WARN L191 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:39:53,820 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1114 [2019-10-07 14:39:53,955 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:54,745 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:55,314 WARN L191 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:39:55,853 WARN L191 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:39:55,981 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:56,772 WARN L191 SmtUtils]: Spent 789.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:57,674 WARN L191 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 1262 DAG size of output: 1124 [2019-10-07 14:39:58,341 WARN L191 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:39:58,474 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:39:59,274 WARN L191 SmtUtils]: Spent 798.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:39:59,832 WARN L191 SmtUtils]: Spent 540.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:00,368 WARN L191 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:00,493 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:01,302 WARN L191 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:01,846 WARN L191 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:02,403 WARN L191 SmtUtils]: Spent 554.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:02,529 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:03,318 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:03,853 WARN L191 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:04,375 WARN L191 SmtUtils]: Spent 520.00 ms on a formula simplification that was a NOOP. DAG size: 1124 [2019-10-07 14:40:04,505 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2019-10-07 14:40:05,286 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:40:05,560 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:40:05,562 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 14:40:05,569 INFO L168 Benchmark]: Toolchain (without parser) took 320155.92 ms. Allocated memory was 136.8 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 97.9 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2019-10-07 14:40:05,569 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 14:40:05,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1019.69 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 97.7 MB in the beginning and 142.4 MB in the end (delta: -44.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:05,570 INFO L168 Benchmark]: Boogie Preprocessor took 171.28 ms. Allocated memory is still 202.4 MB. Free memory was 142.4 MB in the beginning and 132.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:05,570 INFO L168 Benchmark]: RCFGBuilder took 4899.30 ms. Allocated memory was 202.4 MB in the beginning and 313.0 MB in the end (delta: 110.6 MB). Free memory was 132.9 MB in the beginning and 73.9 MB in the end (delta: 59.0 MB). Peak memory consumption was 169.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:40:05,570 INFO L168 Benchmark]: TraceAbstraction took 314060.12 ms. Allocated memory was 313.0 MB in the beginning and 3.2 GB in the end (delta: 2.8 GB). Free memory was 73.9 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2019-10-07 14:40:05,572 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1019.69 ms. Allocated memory was 136.8 MB in the beginning and 202.4 MB in the end (delta: 65.5 MB). Free memory was 97.7 MB in the beginning and 142.4 MB in the end (delta: -44.7 MB). Peak memory consumption was 33.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 171.28 ms. Allocated memory is still 202.4 MB. Free memory was 142.4 MB in the beginning and 132.9 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4899.30 ms. Allocated memory was 202.4 MB in the beginning and 313.0 MB in the end (delta: 110.6 MB). Free memory was 132.9 MB in the beginning and 73.9 MB in the end (delta: 59.0 MB). Peak memory consumption was 169.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 314060.12 ms. Allocated memory was 313.0 MB in the beginning and 3.2 GB in the end (delta: 2.8 GB). Free memory was 73.9 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.3 GB. 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...