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_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:32:17,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:32:17,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:32:18,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:32:18,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:32:18,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:32:18,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:32:18,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:32:18,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:32:18,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:32:18,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:32:18,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:32:18,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:32:18,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:32:18,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:32:18,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:32:18,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:32:18,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:32:18,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:32:18,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:32:18,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:32:18,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:32:18,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:32:18,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:32:18,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:32:18,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:32:18,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:32:18,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:32:18,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:32:18,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:32:18,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:32:18,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:32:18,052 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:32:18,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:32:18,055 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:32:18,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:32:18,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:32:18,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:32:18,056 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:32:18,057 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:32:18,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:32:18,058 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 14:32:18,073 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:32:18,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:32:18,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:32:18,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:32:18,076 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:32:18,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:32:18,076 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:32:18,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:32:18,077 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:32:18,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:32:18,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:32:18,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:32:18,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:32:18,077 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:32:18,078 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:32:18,078 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:32:18,078 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:32:18,078 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:32:18,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:32:18,079 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:32:18,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:32:18,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:32:18,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:32:18,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:32:18,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:32:18,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:32:18,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:32:18,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:32:18,081 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 14:32:18,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:32:18,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:32:18,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:32:18,422 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:32:18,422 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:32:18,423 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product09.cil.c [2019-10-07 14:32:18,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4669f7fc/39599c38324c49a7a0f8fa41319cab02/FLAGf319a39f8 [2019-10-07 14:32:19,121 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:32:19,122 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product09.cil.c [2019-10-07 14:32:19,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4669f7fc/39599c38324c49a7a0f8fa41319cab02/FLAGf319a39f8 [2019-10-07 14:32:19,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4669f7fc/39599c38324c49a7a0f8fa41319cab02 [2019-10-07 14:32:19,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:32:19,324 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:32:19,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:32:19,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:32:19,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:32:19,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:32:19" (1/1) ... [2019-10-07 14:32:19,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ef6259 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:19, skipping insertion in model container [2019-10-07 14:32:19,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:32:19" (1/1) ... [2019-10-07 14:32:19,337 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:32:19,433 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:32:20,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:32:20,081 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:32:20,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:32:20,290 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:32:20,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:20 WrapperNode [2019-10-07 14:32:20,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:32:20,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:32:20,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:32:20,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:32:20,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:20" (1/1) ... [2019-10-07 14:32:20,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:20" (1/1) ... [2019-10-07 14:32:20,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:20" (1/1) ... [2019-10-07 14:32:20,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:20" (1/1) ... [2019-10-07 14:32:20,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:20" (1/1) ... [2019-10-07 14:32:20,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:20" (1/1) ... [2019-10-07 14:32:20,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:20" (1/1) ... [2019-10-07 14:32:20,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:32:20,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:32:20,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:32:20,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:32:20,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:20" (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 14:32:20,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:32:20,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:32:20,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:32:20,561 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:32:20,562 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:32:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:32:20,563 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:32:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:32:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:32:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:32:20,564 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:32:20,565 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:32:20,566 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:32:20,566 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:32:20,566 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:32:20,566 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:32:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:32:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:32:20,569 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:32:20,570 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:32:20,570 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:32:20,570 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:32:20,570 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:32:20,570 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:32:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:32:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:32:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:32:20,571 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:32:20,572 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:32:20,572 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:32:20,572 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:32:20,572 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:32:20,573 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:32:20,573 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:32:20,573 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:32:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:32:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:32:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:32:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:32:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:32:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:32:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:32:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:32:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:32:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:32:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:32:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:32:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:32:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:32:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:32:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:32:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:32:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:32:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:32:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:32:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:32:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:32:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:32:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:32:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:32:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:32:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:32:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:32:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:32:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:32:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:32:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:32:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:32:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:32:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:32:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:32:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:32:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:32:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:32:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:32:20,582 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:32:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:32:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:32:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:32:20,583 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:32:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:32:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:32:20,584 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:32:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:32:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:32:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:32:20,585 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:32:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:32:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:32:20,586 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:32:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:32:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:32:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:32:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:32:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:32:20,587 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:32:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:32:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:32:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:32:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:32:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:32:20,588 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:32:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:32:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:32:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:32:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:32:20,589 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:32:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:32:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:32:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:32:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:32:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:32:20,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:32:20,591 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:32:20,591 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:32:20,591 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:32:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:32:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:32:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:32:20,592 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:32:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:32:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:32:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:32:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:32:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:32:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:32:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:32:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:32:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:32:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:32:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:32:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:32:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:32:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:32:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:32:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:32:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:32:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:32:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:32:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:32:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:32:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:32:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:32:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:32:20,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:32:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:32:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:32:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:32:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:32:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:32:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:32:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:32:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:32:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:32:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:32:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:32:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:32:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:32:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:32:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:32:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:32:25,258 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:32:25,259 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:32:25,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:32:25 BoogieIcfgContainer [2019-10-07 14:32:25,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:32:25,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:32:25,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:32:25,265 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:32:25,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:32:19" (1/3) ... [2019-10-07 14:32:25,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dc663f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:32:25, skipping insertion in model container [2019-10-07 14:32:25,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:20" (2/3) ... [2019-10-07 14:32:25,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17dc663f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:32:25, skipping insertion in model container [2019-10-07 14:32:25,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:32:25" (3/3) ... [2019-10-07 14:32:25,269 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product09.cil.c [2019-10-07 14:32:25,279 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:32:25,292 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:32:25,304 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:32:25,396 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:32:25,396 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:32:25,397 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:32:25,397 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:32:25,397 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:32:25,397 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:32:25,397 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:32:25,397 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:32:25,446 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states. [2019-10-07 14:32:25,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-07 14:32:25,467 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:25,468 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:25,471 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:25,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:25,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1257646830, now seen corresponding path program 1 times [2019-10-07 14:32:25,489 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:25,490 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:25,490 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:25,490 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:25,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:26,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:32:26,126 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:26,127 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:26,127 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:32:26,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:32:26,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:32:26,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:32:26,148 INFO L87 Difference]: Start difference. First operand 528 states. Second operand 8 states. [2019-10-07 14:32:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:26,384 INFO L93 Difference]: Finished difference Result 808 states and 1249 transitions. [2019-10-07 14:32:26,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:32:26,386 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-10-07 14:32:26,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:26,425 INFO L225 Difference]: With dead ends: 808 [2019-10-07 14:32:26,425 INFO L226 Difference]: Without dead ends: 436 [2019-10-07 14:32:26,439 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:32:26,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2019-10-07 14:32:26,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 401. [2019-10-07 14:32:26,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2019-10-07 14:32:26,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 599 transitions. [2019-10-07 14:32:26,584 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 599 transitions. Word has length 92 [2019-10-07 14:32:26,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:26,585 INFO L462 AbstractCegarLoop]: Abstraction has 401 states and 599 transitions. [2019-10-07 14:32:26,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:32:26,585 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 599 transitions. [2019-10-07 14:32:26,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-07 14:32:26,597 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:26,597 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:26,598 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:26,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:26,599 INFO L82 PathProgramCache]: Analyzing trace with hash -201394643, now seen corresponding path program 1 times [2019-10-07 14:32:26,599 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:26,599 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:26,599 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:26,600 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:26,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:26,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:32:26,944 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:26,944 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:26,945 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:32:26,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:32:26,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:32:26,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:32:26,955 INFO L87 Difference]: Start difference. First operand 401 states and 599 transitions. Second operand 7 states. [2019-10-07 14:32:30,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:30,248 INFO L93 Difference]: Finished difference Result 1234 states and 1906 transitions. [2019-10-07 14:32:30,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-07 14:32:30,249 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-10-07 14:32:30,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:30,256 INFO L225 Difference]: With dead ends: 1234 [2019-10-07 14:32:30,257 INFO L226 Difference]: Without dead ends: 875 [2019-10-07 14:32:30,259 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:32:30,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2019-10-07 14:32:30,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 848. [2019-10-07 14:32:30,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 848 states. [2019-10-07 14:32:30,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1313 transitions. [2019-10-07 14:32:30,377 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1313 transitions. Word has length 97 [2019-10-07 14:32:30,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:30,379 INFO L462 AbstractCegarLoop]: Abstraction has 848 states and 1313 transitions. [2019-10-07 14:32:30,379 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:32:30,379 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1313 transitions. [2019-10-07 14:32:30,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-07 14:32:30,383 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:30,384 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:30,384 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:30,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:30,384 INFO L82 PathProgramCache]: Analyzing trace with hash -944067870, now seen corresponding path program 1 times [2019-10-07 14:32:30,385 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:30,385 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:30,385 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:30,385 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:30,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:30,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:32:30,597 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:30,597 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:30,597 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:32:30,598 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:32:30,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:32:30,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:32:30,598 INFO L87 Difference]: Start difference. First operand 848 states and 1313 transitions. Second operand 5 states. [2019-10-07 14:32:30,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:30,676 INFO L93 Difference]: Finished difference Result 1344 states and 2094 transitions. [2019-10-07 14:32:30,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:32:30,676 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-10-07 14:32:30,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:30,686 INFO L225 Difference]: With dead ends: 1344 [2019-10-07 14:32:30,686 INFO L226 Difference]: Without dead ends: 870 [2019-10-07 14:32:30,688 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 14:32:30,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-10-07 14:32:30,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 860. [2019-10-07 14:32:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 860 states. [2019-10-07 14:32:30,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 860 states to 860 states and 1328 transitions. [2019-10-07 14:32:30,768 INFO L78 Accepts]: Start accepts. Automaton has 860 states and 1328 transitions. Word has length 101 [2019-10-07 14:32:30,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:30,769 INFO L462 AbstractCegarLoop]: Abstraction has 860 states and 1328 transitions. [2019-10-07 14:32:30,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:32:30,769 INFO L276 IsEmpty]: Start isEmpty. Operand 860 states and 1328 transitions. [2019-10-07 14:32:30,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-07 14:32:30,772 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:30,772 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:32:30,772 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:30,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:30,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1733405498, now seen corresponding path program 1 times [2019-10-07 14:32:30,773 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:30,773 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:30,773 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:30,773 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:30,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:32:31,045 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:31,046 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:31,046 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:32:31,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:32:31,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:32:31,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:32:31,048 INFO L87 Difference]: Start difference. First operand 860 states and 1328 transitions. Second operand 8 states. [2019-10-07 14:32:34,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:34,099 INFO L93 Difference]: Finished difference Result 1825 states and 2823 transitions. [2019-10-07 14:32:34,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:32:34,100 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2019-10-07 14:32:34,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:34,109 INFO L225 Difference]: With dead ends: 1825 [2019-10-07 14:32:34,109 INFO L226 Difference]: Without dead ends: 1243 [2019-10-07 14:32:34,114 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:32:34,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2019-10-07 14:32:34,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 1193. [2019-10-07 14:32:34,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-10-07 14:32:34,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1800 transitions. [2019-10-07 14:32:34,190 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1800 transitions. Word has length 105 [2019-10-07 14:32:34,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:34,192 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1800 transitions. [2019-10-07 14:32:34,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:32:34,193 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1800 transitions. [2019-10-07 14:32:34,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-07 14:32:34,195 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:34,195 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:32:34,195 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:34,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:34,196 INFO L82 PathProgramCache]: Analyzing trace with hash 993846073, now seen corresponding path program 1 times [2019-10-07 14:32:34,196 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:34,196 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:34,196 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:34,196 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:34,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:34,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:32:34,349 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:34,349 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:34,349 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:32:34,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:32:34,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:32:34,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:32:34,351 INFO L87 Difference]: Start difference. First operand 1193 states and 1800 transitions. Second operand 7 states. [2019-10-07 14:32:34,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:34,538 INFO L93 Difference]: Finished difference Result 2252 states and 3483 transitions. [2019-10-07 14:32:34,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:32:34,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2019-10-07 14:32:34,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:34,551 INFO L225 Difference]: With dead ends: 2252 [2019-10-07 14:32:34,552 INFO L226 Difference]: Without dead ends: 1193 [2019-10-07 14:32:34,558 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:32:34,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2019-10-07 14:32:34,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1193. [2019-10-07 14:32:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1193 states. [2019-10-07 14:32:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1768 transitions. [2019-10-07 14:32:34,633 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1768 transitions. Word has length 108 [2019-10-07 14:32:34,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:34,634 INFO L462 AbstractCegarLoop]: Abstraction has 1193 states and 1768 transitions. [2019-10-07 14:32:34,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:32:34,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1768 transitions. [2019-10-07 14:32:34,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-07 14:32:34,641 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:34,641 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:32:34,642 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:34,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:34,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1760314651, now seen corresponding path program 1 times [2019-10-07 14:32:34,642 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:34,643 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:34,643 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:34,643 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:34,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 14:32:34,891 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:34,891 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:34,891 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:32:34,892 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:32:34,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:32:34,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:32:34,895 INFO L87 Difference]: Start difference. First operand 1193 states and 1768 transitions. Second operand 7 states. [2019-10-07 14:32:37,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:37,968 INFO L93 Difference]: Finished difference Result 2121 states and 3153 transitions. [2019-10-07 14:32:37,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:32:37,969 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2019-10-07 14:32:37,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:37,979 INFO L225 Difference]: With dead ends: 2121 [2019-10-07 14:32:37,979 INFO L226 Difference]: Without dead ends: 1263 [2019-10-07 14:32:37,986 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 14:32:37,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2019-10-07 14:32:38,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 1220. [2019-10-07 14:32:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1220 states. [2019-10-07 14:32:38,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1802 transitions. [2019-10-07 14:32:38,060 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1802 transitions. Word has length 110 [2019-10-07 14:32:38,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:38,061 INFO L462 AbstractCegarLoop]: Abstraction has 1220 states and 1802 transitions. [2019-10-07 14:32:38,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:32:38,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1802 transitions. [2019-10-07 14:32:38,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-07 14:32:38,065 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:38,065 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:32:38,065 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:38,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:38,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1070473477, now seen corresponding path program 1 times [2019-10-07 14:32:38,066 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:38,066 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:38,066 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:38,066 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:38,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 14:32:38,205 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:38,205 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:38,205 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:32:38,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:32:38,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:32:38,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:38,207 INFO L87 Difference]: Start difference. First operand 1220 states and 1802 transitions. Second operand 3 states. [2019-10-07 14:32:38,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:38,324 INFO L93 Difference]: Finished difference Result 3533 states and 5300 transitions. [2019-10-07 14:32:38,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:32:38,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2019-10-07 14:32:38,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:38,341 INFO L225 Difference]: With dead ends: 3533 [2019-10-07 14:32:38,341 INFO L226 Difference]: Without dead ends: 2355 [2019-10-07 14:32:38,347 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 14:32:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2019-10-07 14:32:38,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 2308. [2019-10-07 14:32:38,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2308 states. [2019-10-07 14:32:38,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2308 states to 2308 states and 3455 transitions. [2019-10-07 14:32:38,468 INFO L78 Accepts]: Start accepts. Automaton has 2308 states and 3455 transitions. Word has length 114 [2019-10-07 14:32:38,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:38,470 INFO L462 AbstractCegarLoop]: Abstraction has 2308 states and 3455 transitions. [2019-10-07 14:32:38,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:32:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 2308 states and 3455 transitions. [2019-10-07 14:32:38,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:32:38,473 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:38,473 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:38,474 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:38,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:38,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1269557317, now seen corresponding path program 1 times [2019-10-07 14:32:38,474 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:38,474 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:38,474 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:38,475 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:38,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-07 14:32:38,621 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:38,621 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:38,622 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:32:38,623 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:32:38,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:32:38,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:38,624 INFO L87 Difference]: Start difference. First operand 2308 states and 3455 transitions. Second operand 3 states. [2019-10-07 14:32:38,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:38,839 INFO L93 Difference]: Finished difference Result 6798 states and 10328 transitions. [2019-10-07 14:32:38,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:32:38,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-07 14:32:38,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:38,885 INFO L225 Difference]: With dead ends: 6798 [2019-10-07 14:32:38,886 INFO L226 Difference]: Without dead ends: 4533 [2019-10-07 14:32:38,903 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 14:32:38,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4533 states. [2019-10-07 14:32:39,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4533 to 4485. [2019-10-07 14:32:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4485 states. [2019-10-07 14:32:39,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4485 states to 4485 states and 6800 transitions. [2019-10-07 14:32:39,131 INFO L78 Accepts]: Start accepts. Automaton has 4485 states and 6800 transitions. Word has length 118 [2019-10-07 14:32:39,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:39,133 INFO L462 AbstractCegarLoop]: Abstraction has 4485 states and 6800 transitions. [2019-10-07 14:32:39,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:32:39,134 INFO L276 IsEmpty]: Start isEmpty. Operand 4485 states and 6800 transitions. [2019-10-07 14:32:39,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-07 14:32:39,137 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:39,138 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:39,138 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:39,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:39,138 INFO L82 PathProgramCache]: Analyzing trace with hash -2107656505, now seen corresponding path program 1 times [2019-10-07 14:32:39,139 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:39,139 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:39,139 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:39,139 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:39,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:39,377 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 14:32:39,377 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:39,377 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:39,377 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:32:39,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:32:39,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:32:39,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:39,378 INFO L87 Difference]: Start difference. First operand 4485 states and 6800 transitions. Second operand 3 states. [2019-10-07 14:32:39,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:39,645 INFO L93 Difference]: Finished difference Result 13329 states and 20584 transitions. [2019-10-07 14:32:39,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:32:39,645 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2019-10-07 14:32:39,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:39,718 INFO L225 Difference]: With dead ends: 13329 [2019-10-07 14:32:39,718 INFO L226 Difference]: Without dead ends: 8889 [2019-10-07 14:32:39,746 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 14:32:39,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8889 states. [2019-10-07 14:32:40,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8889 to 8840. [2019-10-07 14:32:40,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8840 states. [2019-10-07 14:32:40,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8840 states to 8840 states and 13624 transitions. [2019-10-07 14:32:40,187 INFO L78 Accepts]: Start accepts. Automaton has 8840 states and 13624 transitions. Word has length 116 [2019-10-07 14:32:40,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:40,188 INFO L462 AbstractCegarLoop]: Abstraction has 8840 states and 13624 transitions. [2019-10-07 14:32:40,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:32:40,188 INFO L276 IsEmpty]: Start isEmpty. Operand 8840 states and 13624 transitions. [2019-10-07 14:32:40,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:32:40,192 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:40,192 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 14:32:40,192 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:40,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:40,193 INFO L82 PathProgramCache]: Analyzing trace with hash -914100677, now seen corresponding path program 1 times [2019-10-07 14:32:40,193 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:40,193 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:40,193 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:40,193 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:40,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 14:32:40,309 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:40,310 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:40,310 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:32:40,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:32:40,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:32:40,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:40,311 INFO L87 Difference]: Start difference. First operand 8840 states and 13624 transitions. Second operand 3 states. [2019-10-07 14:32:40,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:40,915 INFO L93 Difference]: Finished difference Result 26392 states and 41789 transitions. [2019-10-07 14:32:40,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:32:40,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-10-07 14:32:40,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:41,029 INFO L225 Difference]: With dead ends: 26392 [2019-10-07 14:32:41,029 INFO L226 Difference]: Without dead ends: 17601 [2019-10-07 14:32:41,077 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 14:32:41,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17601 states. [2019-10-07 14:32:42,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17601 to 17551. [2019-10-07 14:32:42,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17551 states. [2019-10-07 14:32:43,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17551 states to 17551 states and 27748 transitions. [2019-10-07 14:32:43,018 INFO L78 Accepts]: Start accepts. Automaton has 17551 states and 27748 transitions. Word has length 117 [2019-10-07 14:32:43,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:43,019 INFO L462 AbstractCegarLoop]: Abstraction has 17551 states and 27748 transitions. [2019-10-07 14:32:43,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:32:43,019 INFO L276 IsEmpty]: Start isEmpty. Operand 17551 states and 27748 transitions. [2019-10-07 14:32:43,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:32:43,022 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:43,022 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:43,023 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:43,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:43,023 INFO L82 PathProgramCache]: Analyzing trace with hash 1726395529, now seen corresponding path program 1 times [2019-10-07 14:32:43,023 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:43,023 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:43,024 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:43,024 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:43,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:43,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-07 14:32:43,148 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:43,148 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:32:43,149 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:32:43,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:32:43,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:32:43,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:32:43,150 INFO L87 Difference]: Start difference. First operand 17551 states and 27748 transitions. Second operand 3 states. [2019-10-07 14:32:43,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:43,599 INFO L93 Difference]: Finished difference Result 18691 states and 29719 transitions. [2019-10-07 14:32:43,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:32:43,600 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-07 14:32:43,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:43,727 INFO L225 Difference]: With dead ends: 18691 [2019-10-07 14:32:43,727 INFO L226 Difference]: Without dead ends: 18678 [2019-10-07 14:32:43,741 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 14:32:43,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18678 states. [2019-10-07 14:32:44,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18678 to 18633. [2019-10-07 14:32:44,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18633 states. [2019-10-07 14:32:44,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18633 states to 18633 states and 29632 transitions. [2019-10-07 14:32:44,945 INFO L78 Accepts]: Start accepts. Automaton has 18633 states and 29632 transitions. Word has length 118 [2019-10-07 14:32:44,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:44,945 INFO L462 AbstractCegarLoop]: Abstraction has 18633 states and 29632 transitions. [2019-10-07 14:32:44,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:32:44,946 INFO L276 IsEmpty]: Start isEmpty. Operand 18633 states and 29632 transitions. [2019-10-07 14:32:44,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-07 14:32:44,954 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:44,954 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2019-10-07 14:32:44,954 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:44,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:44,955 INFO L82 PathProgramCache]: Analyzing trace with hash -906046504, now seen corresponding path program 1 times [2019-10-07 14:32:44,955 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:44,955 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:44,955 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:44,956 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:44,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:32:45,149 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:45,149 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:32:45,150 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 14:32:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:45,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 3313 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:32:45,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:32:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2019-10-07 14:32:46,068 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:32:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:32:46,526 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:32:46,527 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:32:46,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:32:46,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:32:46,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:32:46,529 INFO L87 Difference]: Start difference. First operand 18633 states and 29632 transitions. Second operand 4 states. [2019-10-07 14:32:47,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:47,622 INFO L93 Difference]: Finished difference Result 39212 states and 64164 transitions. [2019-10-07 14:32:47,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:32:47,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 170 [2019-10-07 14:32:47,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:47,803 INFO L225 Difference]: With dead ends: 39212 [2019-10-07 14:32:47,803 INFO L226 Difference]: Without dead ends: 20622 [2019-10-07 14:32:47,875 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 339 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 14:32:47,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20622 states. [2019-10-07 14:32:49,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20622 to 20622. [2019-10-07 14:32:49,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20622 states. [2019-10-07 14:32:49,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20622 states to 20622 states and 33355 transitions. [2019-10-07 14:32:49,450 INFO L78 Accepts]: Start accepts. Automaton has 20622 states and 33355 transitions. Word has length 170 [2019-10-07 14:32:49,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:49,450 INFO L462 AbstractCegarLoop]: Abstraction has 20622 states and 33355 transitions. [2019-10-07 14:32:49,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:32:49,451 INFO L276 IsEmpty]: Start isEmpty. Operand 20622 states and 33355 transitions. [2019-10-07 14:32:49,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2019-10-07 14:32:49,457 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:49,457 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:32:49,666 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:32:49,666 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:49,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:49,667 INFO L82 PathProgramCache]: Analyzing trace with hash -2053705712, now seen corresponding path program 1 times [2019-10-07 14:32:49,667 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:49,667 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:49,668 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:49,668 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:49,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:49,894 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:32:49,894 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:49,894 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:32:49,895 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 14:32:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:50,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 3318 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:32:50,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:32:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 14:32:50,606 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:32:50,897 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:32:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:32:51,282 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:32:51,282 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:32:51,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:32:51,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:32:51,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:32:51,283 INFO L87 Difference]: Start difference. First operand 20622 states and 33355 transitions. Second operand 4 states. [2019-10-07 14:32:52,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:52,093 INFO L93 Difference]: Finished difference Result 43190 states and 71559 transitions. [2019-10-07 14:32:52,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:32:52,094 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2019-10-07 14:32:52,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:52,293 INFO L225 Difference]: With dead ends: 43190 [2019-10-07 14:32:52,294 INFO L226 Difference]: Without dead ends: 22611 [2019-10-07 14:32:52,370 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 347 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 14:32:52,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22611 states. [2019-10-07 14:32:54,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22611 to 22611. [2019-10-07 14:32:54,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22611 states. [2019-10-07 14:32:54,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22611 states to 22611 states and 37078 transitions. [2019-10-07 14:32:54,522 INFO L78 Accepts]: Start accepts. Automaton has 22611 states and 37078 transitions. Word has length 175 [2019-10-07 14:32:54,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:54,522 INFO L462 AbstractCegarLoop]: Abstraction has 22611 states and 37078 transitions. [2019-10-07 14:32:54,522 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:32:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 22611 states and 37078 transitions. [2019-10-07 14:32:54,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 14:32:54,530 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:54,530 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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] [2019-10-07 14:32:54,749 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:32:54,750 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:54,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:54,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1135243248, now seen corresponding path program 1 times [2019-10-07 14:32:54,751 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:54,752 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:54,752 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:54,752 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:54,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-07 14:32:54,950 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:54,951 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:32:54,951 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 14:32:55,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:55,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 3322 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:32:55,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:32:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:32:55,648 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:32:55,973 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-10-07 14:32:55,973 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:32:55,973 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:32:55,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:32:55,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:32:55,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:32:55,977 INFO L87 Difference]: Start difference. First operand 22611 states and 37078 transitions. Second operand 4 states. [2019-10-07 14:32:56,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:32:56,756 INFO L93 Difference]: Finished difference Result 47168 states and 78954 transitions. [2019-10-07 14:32:56,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:32:56,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 179 [2019-10-07 14:32:56,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:32:56,868 INFO L225 Difference]: With dead ends: 47168 [2019-10-07 14:32:56,869 INFO L226 Difference]: Without dead ends: 24600 [2019-10-07 14:32:56,921 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 355 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 14:32:56,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24600 states. [2019-10-07 14:32:57,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24600 to 24600. [2019-10-07 14:32:57,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24600 states. [2019-10-07 14:32:57,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24600 states to 24600 states and 40801 transitions. [2019-10-07 14:32:57,977 INFO L78 Accepts]: Start accepts. Automaton has 24600 states and 40801 transitions. Word has length 179 [2019-10-07 14:32:57,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:32:57,978 INFO L462 AbstractCegarLoop]: Abstraction has 24600 states and 40801 transitions. [2019-10-07 14:32:57,978 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:32:57,978 INFO L276 IsEmpty]: Start isEmpty. Operand 24600 states and 40801 transitions. [2019-10-07 14:32:57,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-07 14:32:57,985 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:32:57,985 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 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] [2019-10-07 14:32:58,194 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:32:58,194 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:32:58,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:32:58,194 INFO L82 PathProgramCache]: Analyzing trace with hash 582492536, now seen corresponding path program 1 times [2019-10-07 14:32:58,195 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:32:58,195 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:58,195 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:58,195 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:32:58,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:32:58,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-07 14:32:58,362 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:32:58,362 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:32:58,362 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 14:32:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:32:58,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 3325 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:32:58,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:32:59,213 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-07 14:32:59,214 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:32:59,593 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-10-07 14:32:59,594 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:32:59,594 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:32:59,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:32:59,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:32:59,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:32:59,595 INFO L87 Difference]: Start difference. First operand 24600 states and 40801 transitions. Second operand 4 states. [2019-10-07 14:33:00,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:00,156 INFO L93 Difference]: Finished difference Result 51146 states and 86349 transitions. [2019-10-07 14:33:00,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:00,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2019-10-07 14:33:00,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:00,269 INFO L225 Difference]: With dead ends: 51146 [2019-10-07 14:33:00,270 INFO L226 Difference]: Without dead ends: 26589 [2019-10-07 14:33:00,327 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 361 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 14:33:00,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26589 states. [2019-10-07 14:33:01,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26589 to 26589. [2019-10-07 14:33:01,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26589 states. [2019-10-07 14:33:01,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26589 states to 26589 states and 44524 transitions. [2019-10-07 14:33:01,201 INFO L78 Accepts]: Start accepts. Automaton has 26589 states and 44524 transitions. Word has length 182 [2019-10-07 14:33:01,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:01,202 INFO L462 AbstractCegarLoop]: Abstraction has 26589 states and 44524 transitions. [2019-10-07 14:33:01,202 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:33:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 26589 states and 44524 transitions. [2019-10-07 14:33:01,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-07 14:33:01,210 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:01,210 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 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] [2019-10-07 14:33:01,417 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:01,424 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:01,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:01,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1741787046, now seen corresponding path program 1 times [2019-10-07 14:33:01,425 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:01,425 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:01,425 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:01,425 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:01,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:01,952 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:33:01,952 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:01,952 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:01,952 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 14:33:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:02,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 3321 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-07 14:33:02,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:02,673 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:33:02,673 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:03,239 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:33:03,240 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:33:03,240 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [9] total 17 [2019-10-07 14:33:03,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:33:03,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:33:03,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2019-10-07 14:33:03,243 INFO L87 Difference]: Start difference. First operand 26589 states and 44524 transitions. Second operand 10 states. [2019-10-07 14:33:05,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:05,649 INFO L93 Difference]: Finished difference Result 65879 states and 109850 transitions. [2019-10-07 14:33:05,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:33:05,650 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 184 [2019-10-07 14:33:05,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:05,789 INFO L225 Difference]: With dead ends: 65879 [2019-10-07 14:33:05,789 INFO L226 Difference]: Without dead ends: 39348 [2019-10-07 14:33:05,871 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 363 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 14:33:05,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39348 states. [2019-10-07 14:33:07,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39348 to 38908. [2019-10-07 14:33:07,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38908 states. [2019-10-07 14:33:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38908 states to 38908 states and 64565 transitions. [2019-10-07 14:33:07,600 INFO L78 Accepts]: Start accepts. Automaton has 38908 states and 64565 transitions. Word has length 184 [2019-10-07 14:33:07,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:07,602 INFO L462 AbstractCegarLoop]: Abstraction has 38908 states and 64565 transitions. [2019-10-07 14:33:07,602 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:33:07,602 INFO L276 IsEmpty]: Start isEmpty. Operand 38908 states and 64565 transitions. [2019-10-07 14:33:07,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-10-07 14:33:07,614 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:07,615 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 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] [2019-10-07 14:33:07,827 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:07,828 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:07,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:07,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1494836509, now seen corresponding path program 1 times [2019-10-07 14:33:07,829 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:07,829 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:07,829 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:07,830 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:07,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:08,101 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:33:08,102 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:08,102 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:08,102 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 14:33:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:08,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 3327 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:33:08,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:08,939 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:33:08,939 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:10,570 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:33:10,837 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:33:10,838 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:33:10,838 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [9] total 16 [2019-10-07 14:33:10,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:33:10,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:33:10,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:33:10,839 INFO L87 Difference]: Start difference. First operand 38908 states and 64565 transitions. Second operand 9 states. [2019-10-07 14:33:12,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:12,295 INFO L93 Difference]: Finished difference Result 40112 states and 68287 transitions. [2019-10-07 14:33:12,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:33:12,295 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 187 [2019-10-07 14:33:12,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:12,473 INFO L225 Difference]: With dead ends: 40112 [2019-10-07 14:33:12,473 INFO L226 Difference]: Without dead ends: 39994 [2019-10-07 14:33:12,498 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 371 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:33:12,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39994 states. [2019-10-07 14:33:14,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39994 to 39271. [2019-10-07 14:33:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39271 states. [2019-10-07 14:33:14,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39271 states to 39271 states and 65439 transitions. [2019-10-07 14:33:14,239 INFO L78 Accepts]: Start accepts. Automaton has 39271 states and 65439 transitions. Word has length 187 [2019-10-07 14:33:14,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:14,240 INFO L462 AbstractCegarLoop]: Abstraction has 39271 states and 65439 transitions. [2019-10-07 14:33:14,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:33:14,240 INFO L276 IsEmpty]: Start isEmpty. Operand 39271 states and 65439 transitions. [2019-10-07 14:33:14,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-07 14:33:14,248 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:14,249 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 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] [2019-10-07 14:33:14,457 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:14,457 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:14,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:14,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1468357057, now seen corresponding path program 1 times [2019-10-07 14:33:14,458 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:14,458 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:14,458 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:14,458 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:14,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:14,663 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:33:14,663 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:14,663 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:14,664 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 14:33:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:15,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 3342 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:33:15,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:15,450 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:33:15,450 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:33:15,866 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:33:15,866 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [9] total 12 [2019-10-07 14:33:15,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:33:15,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:33:15,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:33:15,869 INFO L87 Difference]: Start difference. First operand 39271 states and 65439 transitions. Second operand 5 states. [2019-10-07 14:33:16,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:16,612 INFO L93 Difference]: Finished difference Result 39389 states and 65571 transitions. [2019-10-07 14:33:16,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:33:16,612 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 192 [2019-10-07 14:33:16,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:16,729 INFO L225 Difference]: With dead ends: 39389 [2019-10-07 14:33:16,730 INFO L226 Difference]: Without dead ends: 39271 [2019-10-07 14:33:16,752 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 385 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 14:33:16,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39271 states. [2019-10-07 14:33:18,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39271 to 39271. [2019-10-07 14:33:18,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39271 states. [2019-10-07 14:33:18,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39271 states to 39271 states and 65311 transitions. [2019-10-07 14:33:18,525 INFO L78 Accepts]: Start accepts. Automaton has 39271 states and 65311 transitions. Word has length 192 [2019-10-07 14:33:18,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:18,526 INFO L462 AbstractCegarLoop]: Abstraction has 39271 states and 65311 transitions. [2019-10-07 14:33:18,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:33:18,526 INFO L276 IsEmpty]: Start isEmpty. Operand 39271 states and 65311 transitions. [2019-10-07 14:33:18,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-07 14:33:18,536 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:18,536 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] [2019-10-07 14:33:18,754 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:18,754 INFO L410 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:18,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:18,755 INFO L82 PathProgramCache]: Analyzing trace with hash 736614273, now seen corresponding path program 1 times [2019-10-07 14:33:18,755 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:18,755 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:18,755 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:18,755 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:18,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:18,951 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 14:33:18,951 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:18,951 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:18,951 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 14:33:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:19,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 3385 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:33:19,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:19,761 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:33:19,762 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:20,486 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:20,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:20,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:20,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:20,513 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:20,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:20,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:20,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:20,620 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 14:33:20,621 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:33:20,677 INFO L162 IcfgInterpreter]: Started Sifa with 173 locations of interest [2019-10-07 14:33:20,677 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:33:20,686 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:33:20,704 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:33:20,704 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:33:58,419 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 758 [2019-10-07 14:34:02,918 WARN L191 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:34:03,349 WARN L191 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 844 [2019-10-07 14:34:03,831 WARN L191 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 844 [2019-10-07 14:34:04,172 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 844 [2019-10-07 14:34:05,289 WARN L191 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:34:05,867 WARN L191 SmtUtils]: Spent 556.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:34:06,316 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:34:06,810 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:34:07,711 WARN L191 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 1030 DAG size of output: 1028 [2019-10-07 14:34:08,163 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:34:08,657 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:34:09,119 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:34:09,569 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:34:10,054 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:34:10,072 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 382 for LOIs [2019-10-07 14:34:10,368 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 727 [2019-10-07 14:34:10,508 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 727 [2019-10-07 14:34:10,881 WARN L191 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 911 [2019-10-07 14:34:10,882 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1076 for LOIs [2019-10-07 14:34:11,309 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:11,735 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:11,853 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:12,573 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:13,009 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:13,443 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:13,567 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:14,292 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:14,754 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:15,181 WARN L191 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:15,318 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:16,062 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:16,915 WARN L191 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 1246 DAG size of output: 1076 [2019-10-07 14:34:17,341 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:17,595 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:18,454 WARN L191 SmtUtils]: Spent 856.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:18,897 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:19,325 WARN L191 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:19,440 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:20,171 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:20,594 WARN L191 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:21,020 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:21,134 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:21,876 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:22,304 WARN L191 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:22,728 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:22,841 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:23,562 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:23,980 WARN L191 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:24,400 WARN L191 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:24,513 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:25,228 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:25,649 WARN L191 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:26,080 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:26,196 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:26,911 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:27,332 WARN L191 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:27,764 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:27,879 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:28,597 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:29,022 WARN L191 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:29,448 WARN L191 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:29,561 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:30,288 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:30,711 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:31,143 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:31,257 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:31,985 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:32,405 WARN L191 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:32,836 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1076 [2019-10-07 14:34:32,951 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:33,682 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:34,480 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:35,210 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:35,343 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:36,083 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:37,413 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:34:38,157 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:38,286 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:39,010 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:39,739 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:40,478 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:40,592 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:34:41,324 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:34:42,168 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:34:42,894 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:34:43,024 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:34:43,770 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:45,104 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:34:45,855 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:45,982 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:34:46,727 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:47,965 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:34:48,697 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:34:48,813 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:34:49,535 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:50,461 WARN L191 SmtUtils]: Spent 917.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:34:51,185 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:34:51,302 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:34:52,032 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:52,752 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:53,483 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:53,603 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:34:54,330 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:34:55,084 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:55,823 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:55,945 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:34:56,681 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:34:57,989 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1248 [2019-10-07 14:34:58,716 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:34:58,840 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:34:59,565 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:35:00,285 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:01,010 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:01,124 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:35:01,872 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:35:04,427 WARN L191 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:35:05,162 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:05,289 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:06,026 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:07,417 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:35:08,151 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:08,273 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:09,009 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:09,751 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:10,488 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:10,601 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:11,327 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:12,093 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:12,826 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:12,947 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:35:13,696 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:14,429 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:15,157 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:15,277 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:35:16,000 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:16,719 WARN L191 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:17,452 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:17,567 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:35:18,286 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:19,578 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:35:20,300 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:35:20,457 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:35:21,183 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:22,476 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1252 DAG size of output: 1248 [2019-10-07 14:35:23,205 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:23,326 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:35:24,055 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:35:25,367 WARN L191 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:35:26,087 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:26,206 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:26,922 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:28,227 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:35:28,951 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:29,084 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:29,808 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:30,567 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:31,291 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:31,404 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:32,125 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:33,468 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:35:34,196 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:34,323 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:35,047 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:36,364 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:35:37,102 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:37,222 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:37,953 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:38,678 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:39,402 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:39,515 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:40,242 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:41,595 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:35:42,329 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:42,450 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:35:43,192 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:43,937 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:44,665 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:44,790 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:35:45,533 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:46,862 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:35:47,597 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:47,725 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:48,459 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:49,769 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:35:50,502 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:50,622 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:51,354 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:52,077 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:52,813 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:52,927 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:35:53,651 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:35:54,434 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:55,169 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:55,290 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:35:56,023 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:56,768 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:57,507 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:57,633 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:35:58,377 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:59,107 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:59,840 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:35:59,955 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:00,682 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:02,017 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1248 [2019-10-07 14:36:02,754 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:02,891 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:03,634 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:04,966 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:36:05,707 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:05,845 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:36:06,577 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:07,885 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:36:08,622 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:08,741 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:36:09,466 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:10,207 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:10,933 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:11,049 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:36:11,783 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:12,549 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:13,282 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:13,406 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:14,154 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:14,906 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:15,643 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:15,767 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:16,495 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:17,225 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:17,952 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:18,069 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:18,803 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:20,115 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1248 [2019-10-07 14:36:20,843 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:20,965 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:21,691 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:22,945 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1250 [2019-10-07 14:36:23,684 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:36:23,809 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:24,546 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:36:25,826 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1250 [2019-10-07 14:36:26,554 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:36:26,800 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:27,684 WARN L191 SmtUtils]: Spent 881.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:36:28,953 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1250 [2019-10-07 14:36:29,683 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:36:29,803 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:30,528 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:36:31,913 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:36:32,640 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:32,757 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:36:33,480 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:34,817 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:36:35,560 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:35,682 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:36:36,404 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:37,125 WARN L191 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:37,850 WARN L191 SmtUtils]: Spent 722.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:37,965 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:36:38,694 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:39,991 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:36:40,721 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:36:40,846 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:41,573 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:42,991 WARN L191 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:36:43,718 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:43,843 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:44,574 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:45,794 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:36:46,523 WARN L191 SmtUtils]: Spent 726.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:36:46,642 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:47,368 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:48,685 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1248 [2019-10-07 14:36:49,419 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:49,559 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:50,281 WARN L191 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:36:51,528 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1250 [2019-10-07 14:36:52,257 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:36:52,376 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:36:53,101 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:36:54,426 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:36:55,146 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:55,262 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:36:55,979 WARN L191 SmtUtils]: Spent 715.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:57,279 WARN L191 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:36:58,003 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:58,120 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:36:58,843 WARN L191 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:36:58,850 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1102 for LOIs [2019-10-07 14:36:59,309 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 1102 [2019-10-07 14:36:59,779 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1102 [2019-10-07 14:36:59,894 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:37:00,609 WARN L191 SmtUtils]: Spent 714.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:37:01,117 WARN L191 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:37:01,629 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:37:01,743 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:37:02,462 WARN L191 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:37:03,359 WARN L191 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 1246 DAG size of output: 1112 [2019-10-07 14:37:03,844 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:37:03,962 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:37:04,688 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:37:05,184 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:37:05,664 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:37:05,778 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:37:06,493 WARN L191 SmtUtils]: Spent 713.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:37:06,975 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:37:07,455 WARN L191 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:37:07,571 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:37:08,293 WARN L191 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:37:08,769 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:37:09,248 WARN L191 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 1112 [2019-10-07 14:37:09,363 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:37:10,091 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:37:10,357 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:37:10,358 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 14:37:10,364 INFO L168 Benchmark]: Toolchain (without parser) took 291040.48 ms. Allocated memory was 142.1 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 97.2 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 324.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:37:10,365 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.1 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 14:37:10,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 966.46 ms. Allocated memory was 142.1 MB in the beginning and 200.3 MB in the end (delta: 58.2 MB). Free memory was 97.0 MB in the beginning and 142.8 MB in the end (delta: -45.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:37:10,365 INFO L168 Benchmark]: Boogie Preprocessor took 185.99 ms. Allocated memory is still 200.3 MB. Free memory was 142.8 MB in the beginning and 133.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:37:10,366 INFO L168 Benchmark]: RCFGBuilder took 4782.56 ms. Allocated memory was 200.3 MB in the beginning and 304.6 MB in the end (delta: 104.3 MB). Free memory was 133.4 MB in the beginning and 74.4 MB in the end (delta: 59.0 MB). Peak memory consumption was 163.4 MB. Max. memory is 7.1 GB. [2019-10-07 14:37:10,366 INFO L168 Benchmark]: TraceAbstraction took 285101.08 ms. Allocated memory was 304.6 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 74.4 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 139.5 MB. Max. memory is 7.1 GB. [2019-10-07 14:37:10,367 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.1 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 966.46 ms. Allocated memory was 142.1 MB in the beginning and 200.3 MB in the end (delta: 58.2 MB). Free memory was 97.0 MB in the beginning and 142.8 MB in the end (delta: -45.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 185.99 ms. Allocated memory is still 200.3 MB. Free memory was 142.8 MB in the beginning and 133.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4782.56 ms. Allocated memory was 200.3 MB in the beginning and 304.6 MB in the end (delta: 104.3 MB). Free memory was 133.4 MB in the beginning and 74.4 MB in the end (delta: 59.0 MB). Peak memory consumption was 163.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 285101.08 ms. Allocated memory was 304.6 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 74.4 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 139.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...