java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:18:50,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:18:50,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:18:50,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:18:50,264 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:18:50,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:18:50,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:18:50,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:18:50,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:18:50,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:18:50,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:18:50,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:18:50,288 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:18:50,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:18:50,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:18:50,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:18:50,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:18:50,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:18:50,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:18:50,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:18:50,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:18:50,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:18:50,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:18:50,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:18:50,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:18:50,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:18:50,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:18:50,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:18:50,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:18:50,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:18:50,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:18:50,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:18:50,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:18:50,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:18:50,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:18:50,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:18:50,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:18:50,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:18:50,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:18:50,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:18:50,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:18:50,326 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:18:50,360 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:18:50,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:18:50,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:18:50,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:18:50,365 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:18:50,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:18:50,365 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:18:50,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:18:50,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:18:50,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:18:50,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:18:50,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:18:50,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:18:50,367 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:18:50,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:18:50,367 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:18:50,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:18:50,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:18:50,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:18:50,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:18:50,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:18:50,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:18:50,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:18:50,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:18:50,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:18:50,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:18:50,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:18:50,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:18:50,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:18:50,656 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:18:50,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:18:50,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:18:50,681 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:18:50,681 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:18:50,682 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c [2019-10-07 14:18:50,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a254a60c8/b7b273cb70f44a10a2438200503de8f4/FLAGabd46253d [2019-10-07 14:18:51,413 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:18:51,414 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product25.cil.c [2019-10-07 14:18:51,441 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a254a60c8/b7b273cb70f44a10a2438200503de8f4/FLAGabd46253d [2019-10-07 14:18:51,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a254a60c8/b7b273cb70f44a10a2438200503de8f4 [2019-10-07 14:18:51,611 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:18:51,615 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:18:51,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:18:51,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:18:51,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:18:51,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:18:51" (1/1) ... [2019-10-07 14:18:51,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d7874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:51, skipping insertion in model container [2019-10-07 14:18:51,625 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:18:51" (1/1) ... [2019-10-07 14:18:51,633 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:18:51,707 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:18:52,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:18:52,457 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:18:52,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:18:52,723 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:18:52,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:52 WrapperNode [2019-10-07 14:18:52,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:18:52,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:18:52,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:18:52,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:18:52,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:52" (1/1) ... [2019-10-07 14:18:52,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:52" (1/1) ... [2019-10-07 14:18:52,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:52" (1/1) ... [2019-10-07 14:18:52,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:52" (1/1) ... [2019-10-07 14:18:52,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:52" (1/1) ... [2019-10-07 14:18:52,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:52" (1/1) ... [2019-10-07 14:18:52,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:52" (1/1) ... [2019-10-07 14:18:52,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:18:52,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:18:52,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:18:52,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:18:52,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:18:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:18:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:18:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:18:52,988 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:18:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:18:52,990 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:18:52,991 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:18:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:18:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:18:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:18:52,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:18:52,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:18:52,994 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:18:52,994 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:18:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:18:52,995 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:18:52,997 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:18:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:18:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:18:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:18:52,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:18:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:18:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:18:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:18:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:18:52,999 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:18:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:18:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:18:53,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:18:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:18:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:18:53,001 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:18:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:18:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:18:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:18:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:18:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:18:53,002 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:18:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:18:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:18:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:18:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:18:53,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:18:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:18:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:18:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:18:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:18:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:18:53,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:18:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:18:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:18:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:18:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:18:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:18:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:18:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:18:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:18:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:18:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:18:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:18:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:18:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:18:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:18:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:18:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:18:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:18:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:18:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:18:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:18:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:18:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:18:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:18:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:18:53,011 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:18:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:18:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:18:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:18:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:18:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:18:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:18:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:18:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:18:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:18:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:18:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:18:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:18:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:18:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:18:53,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:18:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:18:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:18:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:18:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:18:53,017 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:18:53,018 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:18:53,018 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:18:53,018 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:18:53,018 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:18:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:18:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:18:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:18:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:18:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:18:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:18:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:18:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:18:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:18:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:18:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:18:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:18:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:18:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:18:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:18:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:18:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:18:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:18:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:18:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:18:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:18:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:18:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:18:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:18:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:18:53,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:18:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:18:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:18:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:18:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:18:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:18:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:18:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:18:53,028 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:18:53,028 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:18:53,029 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:18:53,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:18:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:18:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:18:53,036 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:18:53,037 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:18:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:18:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:18:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:18:53,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:18:53,039 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:18:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:18:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:18:53,046 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:18:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:18:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:18:53,047 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:18:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:18:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:18:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:18:53,048 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:18:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:18:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:18:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:18:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:18:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:18:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:18:53,049 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:18:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:18:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:18:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:18:53,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:18:57,770 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:18:57,771 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:18:57,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:18:57 BoogieIcfgContainer [2019-10-07 14:18:57,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:18:57,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:18:57,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:18:57,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:18:57,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:18:51" (1/3) ... [2019-10-07 14:18:57,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd04da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:18:57, skipping insertion in model container [2019-10-07 14:18:57,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:18:52" (2/3) ... [2019-10-07 14:18:57,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd04da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:18:57, skipping insertion in model container [2019-10-07 14:18:57,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:18:57" (3/3) ... [2019-10-07 14:18:57,781 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product25.cil.c [2019-10-07 14:18:57,791 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:18:57,801 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:18:57,867 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:18:57,898 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:18:57,898 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:18:57,898 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:18:57,898 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:18:57,898 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:18:57,899 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:18:57,899 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:18:57,899 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:18:57,932 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states. [2019-10-07 14:18:57,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-07 14:18:57,952 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:57,953 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 14:18:57,955 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:57,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:57,962 INFO L82 PathProgramCache]: Analyzing trace with hash -450326218, now seen corresponding path program 1 times [2019-10-07 14:18:57,971 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:57,971 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:57,972 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:57,972 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:57,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:58,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:18:58,569 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:58,570 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:58,570 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:18:58,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:18:58,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:18:58,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:18:58,591 INFO L87 Difference]: Start difference. First operand 549 states. Second operand 2 states. [2019-10-07 14:18:58,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:58,680 INFO L93 Difference]: Finished difference Result 452 states and 675 transitions. [2019-10-07 14:18:58,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:18:58,682 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 92 [2019-10-07 14:18:58,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:58,703 INFO L225 Difference]: With dead ends: 452 [2019-10-07 14:18:58,703 INFO L226 Difference]: Without dead ends: 418 [2019-10-07 14:18:58,708 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:18:58,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2019-10-07 14:18:58,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2019-10-07 14:18:58,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2019-10-07 14:18:58,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 624 transitions. [2019-10-07 14:18:58,799 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 624 transitions. Word has length 92 [2019-10-07 14:18:58,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:58,802 INFO L462 AbstractCegarLoop]: Abstraction has 418 states and 624 transitions. [2019-10-07 14:18:58,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:18:58,802 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 624 transitions. [2019-10-07 14:18:58,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-07 14:18:58,810 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:58,810 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] [2019-10-07 14:18:58,810 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:58,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:58,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1835436988, now seen corresponding path program 1 times [2019-10-07 14:18:58,811 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:58,811 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:58,811 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:58,812 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:58,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:59,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:18:59,175 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:59,176 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:59,176 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:18:59,178 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:18:59,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:18:59,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:18:59,179 INFO L87 Difference]: Start difference. First operand 418 states and 624 transitions. Second operand 8 states. [2019-10-07 14:18:59,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:59,318 INFO L93 Difference]: Finished difference Result 833 states and 1275 transitions. [2019-10-07 14:18:59,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:18:59,319 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2019-10-07 14:18:59,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:59,325 INFO L225 Difference]: With dead ends: 833 [2019-10-07 14:18:59,326 INFO L226 Difference]: Without dead ends: 457 [2019-10-07 14:18:59,337 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 14:18:59,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-10-07 14:18:59,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 422. [2019-10-07 14:18:59,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-10-07 14:18:59,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 628 transitions. [2019-10-07 14:18:59,399 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 628 transitions. Word has length 93 [2019-10-07 14:18:59,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:59,399 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 628 transitions. [2019-10-07 14:18:59,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:18:59,400 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 628 transitions. [2019-10-07 14:18:59,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-07 14:18:59,410 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:59,411 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 14:18:59,411 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:59,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:59,412 INFO L82 PathProgramCache]: Analyzing trace with hash -970020071, now seen corresponding path program 1 times [2019-10-07 14:18:59,412 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:59,412 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:59,412 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:59,412 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:59,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:59,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:59,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 14:18:59,652 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:59,652 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:18:59,652 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:18:59,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:18:59,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:18:59,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:18:59,654 INFO L87 Difference]: Start difference. First operand 422 states and 628 transitions. Second operand 7 states. [2019-10-07 14:19:03,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:03,323 INFO L93 Difference]: Finished difference Result 1297 states and 1993 transitions. [2019-10-07 14:19:03,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-07 14:19:03,323 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-10-07 14:19:03,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:03,336 INFO L225 Difference]: With dead ends: 1297 [2019-10-07 14:19:03,336 INFO L226 Difference]: Without dead ends: 917 [2019-10-07 14:19:03,340 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:19:03,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2019-10-07 14:19:03,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 890. [2019-10-07 14:19:03,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2019-10-07 14:19:03,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1371 transitions. [2019-10-07 14:19:03,432 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1371 transitions. Word has length 97 [2019-10-07 14:19:03,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:03,433 INFO L462 AbstractCegarLoop]: Abstraction has 890 states and 1371 transitions. [2019-10-07 14:19:03,433 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:19:03,433 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1371 transitions. [2019-10-07 14:19:03,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-07 14:19:03,444 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:03,444 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 14:19:03,444 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:03,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:03,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1294264599, now seen corresponding path program 1 times [2019-10-07 14:19:03,445 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:03,445 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:03,446 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:03,446 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:03,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:03,642 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 14:19:03,642 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:03,643 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:03,643 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:19:03,644 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:19:03,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:19:03,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:03,645 INFO L87 Difference]: Start difference. First operand 890 states and 1371 transitions. Second operand 5 states. [2019-10-07 14:19:03,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:03,723 INFO L93 Difference]: Finished difference Result 1407 states and 2181 transitions. [2019-10-07 14:19:03,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:03,724 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-10-07 14:19:03,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:03,733 INFO L225 Difference]: With dead ends: 1407 [2019-10-07 14:19:03,733 INFO L226 Difference]: Without dead ends: 912 [2019-10-07 14:19:03,742 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 14:19:03,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2019-10-07 14:19:03,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 902. [2019-10-07 14:19:03,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 902 states. [2019-10-07 14:19:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 902 states to 902 states and 1386 transitions. [2019-10-07 14:19:03,804 INFO L78 Accepts]: Start accepts. Automaton has 902 states and 1386 transitions. Word has length 101 [2019-10-07 14:19:03,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:03,804 INFO L462 AbstractCegarLoop]: Abstraction has 902 states and 1386 transitions. [2019-10-07 14:19:03,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:19:03,804 INFO L276 IsEmpty]: Start isEmpty. Operand 902 states and 1386 transitions. [2019-10-07 14:19:03,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-07 14:19:03,808 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:03,808 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 14:19:03,809 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:03,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:03,809 INFO L82 PathProgramCache]: Analyzing trace with hash -12595921, now seen corresponding path program 1 times [2019-10-07 14:19:03,809 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:03,809 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:03,810 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:03,810 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:03,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:04,066 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 14:19:04,067 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:04,067 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:04,067 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:19:04,068 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:19:04,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:19:04,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:19:04,069 INFO L87 Difference]: Start difference. First operand 902 states and 1386 transitions. Second operand 8 states. [2019-10-07 14:19:07,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:07,548 INFO L93 Difference]: Finished difference Result 1909 states and 2939 transitions. [2019-10-07 14:19:07,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:19:07,550 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2019-10-07 14:19:07,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:07,560 INFO L225 Difference]: With dead ends: 1909 [2019-10-07 14:19:07,560 INFO L226 Difference]: Without dead ends: 1306 [2019-10-07 14:19:07,563 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 14:19:07,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2019-10-07 14:19:07,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1256. [2019-10-07 14:19:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2019-10-07 14:19:07,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1887 transitions. [2019-10-07 14:19:07,625 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1887 transitions. Word has length 105 [2019-10-07 14:19:07,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:07,626 INFO L462 AbstractCegarLoop]: Abstraction has 1256 states and 1887 transitions. [2019-10-07 14:19:07,626 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:19:07,626 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1887 transitions. [2019-10-07 14:19:07,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-07 14:19:07,629 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:07,629 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 14:19:07,629 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:07,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:07,630 INFO L82 PathProgramCache]: Analyzing trace with hash -648768707, now seen corresponding path program 1 times [2019-10-07 14:19:07,630 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:07,630 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:07,631 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:07,631 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:07,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:07,776 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 14:19:07,776 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:07,777 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:07,777 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:19:07,777 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:19:07,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:19:07,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:19:07,778 INFO L87 Difference]: Start difference. First operand 1256 states and 1887 transitions. Second operand 7 states. [2019-10-07 14:19:07,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:07,976 INFO L93 Difference]: Finished difference Result 2357 states and 3628 transitions. [2019-10-07 14:19:07,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:19:07,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2019-10-07 14:19:07,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:07,990 INFO L225 Difference]: With dead ends: 2357 [2019-10-07 14:19:07,990 INFO L226 Difference]: Without dead ends: 1256 [2019-10-07 14:19:07,996 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 14:19:07,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2019-10-07 14:19:08,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1256. [2019-10-07 14:19:08,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2019-10-07 14:19:08,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1855 transitions. [2019-10-07 14:19:08,092 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1855 transitions. Word has length 108 [2019-10-07 14:19:08,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:08,095 INFO L462 AbstractCegarLoop]: Abstraction has 1256 states and 1855 transitions. [2019-10-07 14:19:08,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:19:08,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1855 transitions. [2019-10-07 14:19:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-07 14:19:08,098 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:08,099 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 14:19:08,099 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:08,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:08,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1459666528, now seen corresponding path program 1 times [2019-10-07 14:19:08,099 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:08,100 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:08,100 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:08,100 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:08,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:08,335 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 14:19:08,335 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:08,336 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:08,336 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:19:08,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:19:08,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:19:08,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:19:08,338 INFO L87 Difference]: Start difference. First operand 1256 states and 1855 transitions. Second operand 7 states. [2019-10-07 14:19:11,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:11,524 INFO L93 Difference]: Finished difference Result 2226 states and 3298 transitions. [2019-10-07 14:19:11,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:19:11,524 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2019-10-07 14:19:11,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:11,536 INFO L225 Difference]: With dead ends: 2226 [2019-10-07 14:19:11,536 INFO L226 Difference]: Without dead ends: 1326 [2019-10-07 14:19:11,541 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 14:19:11,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2019-10-07 14:19:11,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1283. [2019-10-07 14:19:11,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2019-10-07 14:19:11,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1889 transitions. [2019-10-07 14:19:11,616 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1889 transitions. Word has length 110 [2019-10-07 14:19:11,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:11,616 INFO L462 AbstractCegarLoop]: Abstraction has 1283 states and 1889 transitions. [2019-10-07 14:19:11,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:19:11,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1889 transitions. [2019-10-07 14:19:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:19:11,619 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:11,619 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] [2019-10-07 14:19:11,619 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:11,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:11,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1308212542, now seen corresponding path program 1 times [2019-10-07 14:19:11,620 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:11,620 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:11,620 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:11,620 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:11,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:11,843 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 14:19:11,843 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:11,844 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:11,844 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:11,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:11,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:11,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:11,845 INFO L87 Difference]: Start difference. First operand 1283 states and 1889 transitions. Second operand 4 states. [2019-10-07 14:19:13,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:13,339 INFO L93 Difference]: Finished difference Result 3874 states and 5840 transitions. [2019-10-07 14:19:13,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:13,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-10-07 14:19:13,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:13,358 INFO L225 Difference]: With dead ends: 3874 [2019-10-07 14:19:13,358 INFO L226 Difference]: Without dead ends: 2633 [2019-10-07 14:19:13,366 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:13,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2019-10-07 14:19:13,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2488. [2019-10-07 14:19:13,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2488 states. [2019-10-07 14:19:13,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3724 transitions. [2019-10-07 14:19:13,505 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3724 transitions. Word has length 117 [2019-10-07 14:19:13,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:13,507 INFO L462 AbstractCegarLoop]: Abstraction has 2488 states and 3724 transitions. [2019-10-07 14:19:13,507 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:13,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3724 transitions. [2019-10-07 14:19:13,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 14:19:13,510 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:13,511 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] [2019-10-07 14:19:13,511 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:13,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:13,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1982623367, now seen corresponding path program 1 times [2019-10-07 14:19:13,512 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:13,512 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:13,512 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:13,512 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:13,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:13,731 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 14:19:13,731 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:13,732 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:13,732 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:13,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:13,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:13,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:13,734 INFO L87 Difference]: Start difference. First operand 2488 states and 3724 transitions. Second operand 4 states. [2019-10-07 14:19:15,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:15,421 INFO L93 Difference]: Finished difference Result 7411 states and 11349 transitions. [2019-10-07 14:19:15,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:15,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2019-10-07 14:19:15,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:15,461 INFO L225 Difference]: With dead ends: 7411 [2019-10-07 14:19:15,462 INFO L226 Difference]: Without dead ends: 4966 [2019-10-07 14:19:15,476 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:15,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4966 states. [2019-10-07 14:19:15,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4966 to 4788. [2019-10-07 14:19:15,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4788 states. [2019-10-07 14:19:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4788 states to 4788 states and 7260 transitions. [2019-10-07 14:19:15,745 INFO L78 Accepts]: Start accepts. Automaton has 4788 states and 7260 transitions. Word has length 115 [2019-10-07 14:19:15,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:15,746 INFO L462 AbstractCegarLoop]: Abstraction has 4788 states and 7260 transitions. [2019-10-07 14:19:15,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:15,746 INFO L276 IsEmpty]: Start isEmpty. Operand 4788 states and 7260 transitions. [2019-10-07 14:19:15,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-07 14:19:15,749 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:15,749 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 14:19:15,750 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:15,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:15,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1330496636, now seen corresponding path program 1 times [2019-10-07 14:19:15,751 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:15,751 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:15,751 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:15,751 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:15,924 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 14:19:15,925 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:15,925 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:15,925 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:15,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:15,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:15,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:15,927 INFO L87 Difference]: Start difference. First operand 4788 states and 7260 transitions. Second operand 4 states. [2019-10-07 14:19:17,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:17,710 INFO L93 Difference]: Finished difference Result 14393 states and 22559 transitions. [2019-10-07 14:19:17,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:17,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2019-10-07 14:19:17,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:17,781 INFO L225 Difference]: With dead ends: 14393 [2019-10-07 14:19:17,781 INFO L226 Difference]: Without dead ends: 9650 [2019-10-07 14:19:17,812 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:17,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9650 states. [2019-10-07 14:19:18,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9650 to 9407. [2019-10-07 14:19:18,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9407 states. [2019-10-07 14:19:18,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9407 states to 9407 states and 14550 transitions. [2019-10-07 14:19:18,446 INFO L78 Accepts]: Start accepts. Automaton has 9407 states and 14550 transitions. Word has length 116 [2019-10-07 14:19:18,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:18,449 INFO L462 AbstractCegarLoop]: Abstraction has 9407 states and 14550 transitions. [2019-10-07 14:19:18,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:18,449 INFO L276 IsEmpty]: Start isEmpty. Operand 9407 states and 14550 transitions. [2019-10-07 14:19:18,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:19:18,452 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:18,453 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, 1, 1] [2019-10-07 14:19:18,453 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:18,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:18,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1706942399, now seen corresponding path program 1 times [2019-10-07 14:19:18,454 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:18,454 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:18,454 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:18,454 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:18,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:18,577 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 14:19:18,577 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:18,578 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:18,578 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:18,578 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:18,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:18,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:18,579 INFO L87 Difference]: Start difference. First operand 9407 states and 14550 transitions. Second operand 4 states. [2019-10-07 14:19:21,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:21,319 INFO L93 Difference]: Finished difference Result 28412 states and 46308 transitions. [2019-10-07 14:19:21,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:21,319 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-10-07 14:19:21,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:21,435 INFO L225 Difference]: With dead ends: 28412 [2019-10-07 14:19:21,435 INFO L226 Difference]: Without dead ends: 19054 [2019-10-07 14:19:21,479 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:21,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19054 states. [2019-10-07 14:19:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19054 to 18682. [2019-10-07 14:19:22,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18682 states. [2019-10-07 14:19:22,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18682 states to 18682 states and 29876 transitions. [2019-10-07 14:19:22,450 INFO L78 Accepts]: Start accepts. Automaton has 18682 states and 29876 transitions. Word has length 120 [2019-10-07 14:19:22,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:22,451 INFO L462 AbstractCegarLoop]: Abstraction has 18682 states and 29876 transitions. [2019-10-07 14:19:22,451 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 18682 states and 29876 transitions. [2019-10-07 14:19:22,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:19:22,455 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:22,455 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, 1, 1, 1] [2019-10-07 14:19:22,455 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:22,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:22,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1376884602, now seen corresponding path program 1 times [2019-10-07 14:19:22,456 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:22,456 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:22,456 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:22,456 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:22,754 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 14:19:22,754 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:22,754 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:19:22,755 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:19:22,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:22,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:22,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:19:22,756 INFO L87 Difference]: Start difference. First operand 18682 states and 29876 transitions. Second operand 4 states. [2019-10-07 14:19:25,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:25,249 INFO L93 Difference]: Finished difference Result 56601 states and 98461 transitions. [2019-10-07 14:19:25,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:25,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-10-07 14:19:25,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:25,483 INFO L225 Difference]: With dead ends: 56601 [2019-10-07 14:19:25,483 INFO L226 Difference]: Without dead ends: 37964 [2019-10-07 14:19:25,547 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:19:25,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37964 states. [2019-10-07 14:19:27,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37964 to 37061. [2019-10-07 14:19:27,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37061 states. [2019-10-07 14:19:27,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37061 states to 37061 states and 61995 transitions. [2019-10-07 14:19:27,667 INFO L78 Accepts]: Start accepts. Automaton has 37061 states and 61995 transitions. Word has length 121 [2019-10-07 14:19:27,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:27,668 INFO L462 AbstractCegarLoop]: Abstraction has 37061 states and 61995 transitions. [2019-10-07 14:19:27,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:27,668 INFO L276 IsEmpty]: Start isEmpty. Operand 37061 states and 61995 transitions. [2019-10-07 14:19:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2019-10-07 14:19:27,678 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:27,678 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, 1, 1] [2019-10-07 14:19:27,679 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:27,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:27,679 INFO L82 PathProgramCache]: Analyzing trace with hash 621472152, now seen corresponding path program 1 times [2019-10-07 14:19:27,679 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:27,679 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:27,680 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:27,680 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:27,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:29,221 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 14:19:29,221 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:29,222 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:29,222 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 14:19:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:29,829 INFO L256 TraceCheckSpWp]: Trace formula consists of 3375 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:19:29,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:29,941 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 14:19:29,941 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:30,414 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 14:19:30,414 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:19:30,414 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:19:30,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:30,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:30,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:19:30,416 INFO L87 Difference]: Start difference. First operand 37061 states and 61995 transitions. Second operand 4 states. [2019-10-07 14:19:32,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:32,702 INFO L93 Difference]: Finished difference Result 77823 states and 135544 transitions. [2019-10-07 14:19:32,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:32,703 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 172 [2019-10-07 14:19:32,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:32,969 INFO L225 Difference]: With dead ends: 77823 [2019-10-07 14:19:32,969 INFO L226 Difference]: Without dead ends: 40805 [2019-10-07 14:19:33,110 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 343 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 14:19:33,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40805 states. [2019-10-07 14:19:36,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40805 to 40805. [2019-10-07 14:19:36,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40805 states. [2019-10-07 14:19:36,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40805 states to 40805 states and 69003 transitions. [2019-10-07 14:19:36,368 INFO L78 Accepts]: Start accepts. Automaton has 40805 states and 69003 transitions. Word has length 172 [2019-10-07 14:19:36,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:36,369 INFO L462 AbstractCegarLoop]: Abstraction has 40805 states and 69003 transitions. [2019-10-07 14:19:36,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:36,370 INFO L276 IsEmpty]: Start isEmpty. Operand 40805 states and 69003 transitions. [2019-10-07 14:19:36,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-07 14:19:36,386 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:36,387 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, 1, 1] [2019-10-07 14:19:36,610 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:36,610 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:36,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:36,611 INFO L82 PathProgramCache]: Analyzing trace with hash 63238839, now seen corresponding path program 1 times [2019-10-07 14:19:36,611 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:36,612 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:36,612 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:36,612 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:36,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:37,033 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:19:37,033 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:37,033 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:37,034 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 14:19:37,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:37,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 3380 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:19:37,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:37,693 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:19:37,694 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:38,100 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 14:19:38,101 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:19:38,101 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19, 4] total 22 [2019-10-07 14:19:38,102 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:38,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:38,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:19:38,103 INFO L87 Difference]: Start difference. First operand 40805 states and 69003 transitions. Second operand 4 states. [2019-10-07 14:19:39,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:39,563 INFO L93 Difference]: Finished difference Result 85311 states and 149461 transitions. [2019-10-07 14:19:39,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:39,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2019-10-07 14:19:39,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:39,853 INFO L225 Difference]: With dead ends: 85311 [2019-10-07 14:19:39,853 INFO L226 Difference]: Without dead ends: 44549 [2019-10-07 14:19:39,967 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 361 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:19:40,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44549 states. [2019-10-07 14:19:41,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44549 to 44549. [2019-10-07 14:19:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44549 states. [2019-10-07 14:19:41,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44549 states to 44549 states and 76011 transitions. [2019-10-07 14:19:41,952 INFO L78 Accepts]: Start accepts. Automaton has 44549 states and 76011 transitions. Word has length 177 [2019-10-07 14:19:41,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:41,952 INFO L462 AbstractCegarLoop]: Abstraction has 44549 states and 76011 transitions. [2019-10-07 14:19:41,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 44549 states and 76011 transitions. [2019-10-07 14:19:41,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-10-07 14:19:41,960 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:41,961 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, 1, 1] [2019-10-07 14:19:42,170 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:42,170 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:42,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:42,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1554754617, now seen corresponding path program 1 times [2019-10-07 14:19:42,171 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:42,171 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:42,171 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:42,171 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:42,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:42,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:42,554 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-07 14:19:42,554 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:42,554 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:42,554 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 14:19:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:43,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 3384 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:19:43,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:43,232 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:19:43,233 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:43,607 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 14:19:43,607 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:19:43,607 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19, 4] total 22 [2019-10-07 14:19:43,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:43,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:43,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:19:43,609 INFO L87 Difference]: Start difference. First operand 44549 states and 76011 transitions. Second operand 4 states. [2019-10-07 14:19:46,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:46,178 INFO L93 Difference]: Finished difference Result 92799 states and 163378 transitions. [2019-10-07 14:19:46,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:46,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 181 [2019-10-07 14:19:46,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:46,421 INFO L225 Difference]: With dead ends: 92799 [2019-10-07 14:19:46,421 INFO L226 Difference]: Without dead ends: 48293 [2019-10-07 14:19:46,545 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 369 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:19:46,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48293 states. [2019-10-07 14:19:48,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48293 to 48293. [2019-10-07 14:19:48,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48293 states. [2019-10-07 14:19:48,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48293 states to 48293 states and 83019 transitions. [2019-10-07 14:19:48,195 INFO L78 Accepts]: Start accepts. Automaton has 48293 states and 83019 transitions. Word has length 181 [2019-10-07 14:19:48,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:48,196 INFO L462 AbstractCegarLoop]: Abstraction has 48293 states and 83019 transitions. [2019-10-07 14:19:48,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 48293 states and 83019 transitions. [2019-10-07 14:19:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-07 14:19:48,203 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:48,203 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, 1, 1] [2019-10-07 14:19:48,411 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:48,411 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:48,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:48,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1665659996, now seen corresponding path program 1 times [2019-10-07 14:19:48,412 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:48,412 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:48,413 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:48,413 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2019-10-07 14:19:48,734 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:48,734 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:48,734 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 14:19:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:49,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 3387 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:19:49,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:49,480 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 14:19:49,481 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:49,878 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 14:19:49,879 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:19:49,879 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19, 4] total 22 [2019-10-07 14:19:49,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:19:49,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:19:49,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:19:49,880 INFO L87 Difference]: Start difference. First operand 48293 states and 83019 transitions. Second operand 4 states. [2019-10-07 14:19:52,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:52,626 INFO L93 Difference]: Finished difference Result 100287 states and 177295 transitions. [2019-10-07 14:19:52,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:19:52,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 184 [2019-10-07 14:19:52,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:52,834 INFO L225 Difference]: With dead ends: 100287 [2019-10-07 14:19:52,834 INFO L226 Difference]: Without dead ends: 52037 [2019-10-07 14:19:52,937 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 375 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:19:52,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52037 states. [2019-10-07 14:19:54,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52037 to 52037. [2019-10-07 14:19:54,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52037 states. [2019-10-07 14:19:54,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52037 states to 52037 states and 90027 transitions. [2019-10-07 14:19:54,583 INFO L78 Accepts]: Start accepts. Automaton has 52037 states and 90027 transitions. Word has length 184 [2019-10-07 14:19:54,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:19:54,583 INFO L462 AbstractCegarLoop]: Abstraction has 52037 states and 90027 transitions. [2019-10-07 14:19:54,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:19:54,584 INFO L276 IsEmpty]: Start isEmpty. Operand 52037 states and 90027 transitions. [2019-10-07 14:19:54,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-07 14:19:54,589 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:19:54,589 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] [2019-10-07 14:19:54,796 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:19:54,797 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:19:54,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:19:54,798 INFO L82 PathProgramCache]: Analyzing trace with hash -26101810, now seen corresponding path program 1 times [2019-10-07 14:19:54,798 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:19:54,798 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:54,799 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:54,799 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:19:54,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:19:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:19:55,244 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:19:55,244 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:19:55,244 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 14:19:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:19:56,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 3383 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:19:56,099 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:19:56,240 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 14:19:56,240 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:19:56,716 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 14:19:56,716 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:19:56,717 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [19] total 26 [2019-10-07 14:19:56,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:19:56,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:19:56,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:19:56,719 INFO L87 Difference]: Start difference. First operand 52037 states and 90027 transitions. Second operand 9 states. [2019-10-07 14:19:59,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:19:59,025 INFO L93 Difference]: Finished difference Result 53485 states and 97065 transitions. [2019-10-07 14:19:59,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:19:59,025 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 186 [2019-10-07 14:19:59,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:19:59,305 INFO L225 Difference]: With dead ends: 53485 [2019-10-07 14:19:59,306 INFO L226 Difference]: Without dead ends: 53266 [2019-10-07 14:19:59,341 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 373 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:19:59,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53266 states. [2019-10-07 14:20:02,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53266 to 52520. [2019-10-07 14:20:02,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52520 states. [2019-10-07 14:20:02,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52520 states to 52520 states and 92345 transitions. [2019-10-07 14:20:02,627 INFO L78 Accepts]: Start accepts. Automaton has 52520 states and 92345 transitions. Word has length 186 [2019-10-07 14:20:02,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:20:02,627 INFO L462 AbstractCegarLoop]: Abstraction has 52520 states and 92345 transitions. [2019-10-07 14:20:02,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:20:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 52520 states and 92345 transitions. [2019-10-07 14:20:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 14:20:02,633 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:20:02,633 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] [2019-10-07 14:20:02,833 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:02,834 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:20:02,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:20:02,835 INFO L82 PathProgramCache]: Analyzing trace with hash -369285753, now seen corresponding path program 1 times [2019-10-07 14:20:02,835 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:20:02,835 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:02,835 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:02,836 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:02,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:20:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:20:03,182 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:03,182 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:20:03,182 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 14:20:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:03,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 3398 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:20:03,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:20:04,025 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 14:20:04,026 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:20:04,407 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 14:20:04,407 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:20:04,407 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [19] total 22 [2019-10-07 14:20:04,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:20:04,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:20:04,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:20:04,409 INFO L87 Difference]: Start difference. First operand 52520 states and 92345 transitions. Second operand 5 states. [2019-10-07 14:20:05,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:20:05,510 INFO L93 Difference]: Finished difference Result 52739 states and 92589 transitions. [2019-10-07 14:20:05,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:20:05,511 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2019-10-07 14:20:05,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:20:05,702 INFO L225 Difference]: With dead ends: 52739 [2019-10-07 14:20:05,702 INFO L226 Difference]: Without dead ends: 52520 [2019-10-07 14:20:05,726 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 387 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:20:05,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52520 states. [2019-10-07 14:20:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52520 to 52520. [2019-10-07 14:20:07,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52520 states. [2019-10-07 14:20:07,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52520 states to 52520 states and 92221 transitions. [2019-10-07 14:20:07,147 INFO L78 Accepts]: Start accepts. Automaton has 52520 states and 92221 transitions. Word has length 191 [2019-10-07 14:20:07,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:20:07,148 INFO L462 AbstractCegarLoop]: Abstraction has 52520 states and 92221 transitions. [2019-10-07 14:20:07,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:20:07,148 INFO L276 IsEmpty]: Start isEmpty. Operand 52520 states and 92221 transitions. [2019-10-07 14:20:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-07 14:20:07,155 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:20:07,155 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] [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2019-10-07 14:20:09,135 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:20:09,135 INFO L410 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:20:09,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:20:09,136 INFO L82 PathProgramCache]: Analyzing trace with hash 516701576, now seen corresponding path program 1 times [2019-10-07 14:20:09,136 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:20:09,137 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:09,137 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:09,137 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:20:09,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:20:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:09,476 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-10-07 14:20:09,476 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:20:09,476 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:20:09,476 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 14:20:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:20:10,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 3441 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:20:10,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:20:10,411 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 14:20:10,411 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:20:11,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:11,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:11,141 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:11,150 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:11,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:11,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:11,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:11,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:11,255 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 14:20:11,255 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:20:11,288 INFO L162 IcfgInterpreter]: Started Sifa with 172 locations of interest [2019-10-07 14:20:11,288 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:20:11,297 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:20:11,306 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:20:11,307 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:20:53,174 WARN L191 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 762 [2019-10-07 14:20:57,930 WARN L191 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:20:58,358 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:20:58,805 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:20:59,220 WARN L191 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:20:59,802 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:21:00,303 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:21:00,771 WARN L191 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:21:01,283 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:21:02,396 WARN L191 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1038 DAG size of output: 1036 [2019-10-07 14:21:02,842 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:21:03,352 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:21:03,805 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:21:04,248 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:21:04,742 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:21:04,761 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 388 for LOIs [2019-10-07 14:21:05,006 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:21:05,112 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:21:05,469 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 919 [2019-10-07 14:21:05,471 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1086 for LOIs [2019-10-07 14:21:05,912 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:06,364 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:06,492 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:07,248 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:07,702 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:08,162 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:08,411 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:09,177 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:09,674 WARN L191 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:10,116 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:10,290 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:11,068 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:11,901 WARN L191 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1086 [2019-10-07 14:21:12,349 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:12,478 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:13,242 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:13,728 WARN L191 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:14,203 WARN L191 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:14,324 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:15,087 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:15,531 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:15,970 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:16,093 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:16,869 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:17,311 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:17,745 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:17,865 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:18,617 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:19,074 WARN L191 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:19,527 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:19,650 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:20,410 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:20,845 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:21,285 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:21,408 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:22,179 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:22,627 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:23,063 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:23,188 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:23,945 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:24,389 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:24,851 WARN L191 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:24,972 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:25,732 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:26,172 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:26,614 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:26,735 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:27,524 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:27,975 WARN L191 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:28,419 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1086 [2019-10-07 14:21:28,539 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:29,298 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:30,101 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:30,869 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:30,994 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:31,746 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:33,642 WARN L191 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:21:34,434 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:34,572 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:35,328 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:36,085 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:36,885 WARN L191 SmtUtils]: Spent 795.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:37,007 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:21:37,770 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:21:39,409 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:21:40,177 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:21:40,302 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:21:41,077 WARN L191 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:42,741 WARN L191 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:21:43,500 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:21:43,639 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:21:44,393 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:45,745 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1260 DAG size of output: 1258 [2019-10-07 14:21:46,503 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:21:46,624 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:21:47,370 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:21:48,131 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:21:48,886 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:21:49,032 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:21:49,792 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:21:50,551 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:21:51,303 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:21:51,427 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:21:52,176 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:21:52,954 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:21:53,724 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:21:53,855 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:21:54,608 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:21:56,010 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1267 [2019-10-07 14:21:56,766 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:21:57,038 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:21:57,811 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:21:58,595 WARN L191 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:21:59,355 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:21:59,476 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:22:00,231 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:22:02,038 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:22:02,784 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:02,967 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:03,725 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:05,093 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:22:05,856 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:05,988 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:06,742 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:07,493 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:08,262 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:08,381 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:09,140 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:10,544 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:11,291 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:11,419 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:22:12,190 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:13,471 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:22:14,229 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:22:14,356 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:22:15,102 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:16,368 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:22:17,116 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:22:17,237 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:22:17,984 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:19,341 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1265 [2019-10-07 14:22:20,106 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:22:20,234 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:22:20,996 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1265 [2019-10-07 14:22:22,381 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1267 [2019-10-07 14:22:23,164 WARN L191 SmtUtils]: Spent 779.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:22:23,291 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:22:24,057 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:22:25,454 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:22:26,207 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:26,334 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:27,089 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:28,465 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:22:29,209 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:29,333 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:30,071 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:30,815 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:31,557 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:31,675 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:32,414 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:33,761 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:22:34,505 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:34,630 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:35,384 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:36,727 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:22:37,482 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:37,608 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:38,362 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:39,115 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:39,873 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:39,998 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:40,753 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:42,142 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:42,906 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:43,038 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:22:43,796 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:45,165 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:45,937 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:46,065 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:22:46,812 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:48,134 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:22:48,889 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:49,009 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:22:49,774 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:51,117 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1258 [2019-10-07 14:22:51,864 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:22:51,994 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:22:52,734 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:22:54,089 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:22:54,855 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:54,981 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:55,733 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:57,110 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:22:57,876 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:58,004 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:22:58,764 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:22:59,513 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:00,265 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:00,385 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:23:01,134 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:02,513 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:03,284 WARN L191 SmtUtils]: Spent 768.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:03,431 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:04,188 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:05,554 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:06,326 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:06,454 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:07,207 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:07,950 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:08,695 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:08,818 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:09,563 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:10,914 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:23:11,669 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:11,811 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:12,563 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:13,915 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1267 [2019-10-07 14:23:14,667 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:23:14,794 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:15,556 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:23:16,920 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1267 [2019-10-07 14:23:17,670 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:23:17,797 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:18,553 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:23:19,950 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1267 [2019-10-07 14:23:20,731 WARN L191 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:23:20,856 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:21,611 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:23:22,974 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:23:23,714 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:23,838 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:23:24,580 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:26,218 WARN L191 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:23:26,968 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:27,093 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:23:27,845 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:29,383 WARN L191 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:23:30,130 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:30,255 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:23:31,011 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:32,350 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:23:33,096 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:33,219 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:23:33,966 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:34,714 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:35,469 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:35,597 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:23:36,343 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:37,745 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:38,501 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:38,627 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:39,389 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:41,228 WARN L191 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:41,998 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:42,130 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:42,890 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:44,271 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:23:45,046 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:45,169 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:45,928 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:47,309 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:23:48,078 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:48,206 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:48,970 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:23:50,350 WARN L191 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1267 [2019-10-07 14:23:51,138 WARN L191 SmtUtils]: Spent 785.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:23:51,273 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:23:52,028 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1267 [2019-10-07 14:23:53,376 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:23:54,119 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:54,259 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:23:54,999 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:56,338 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:23:57,087 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:57,219 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:23:57,958 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:58,708 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:59,446 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:23:59,568 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:24:00,304 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:24:01,068 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:01,810 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:01,933 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:24:02,677 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:03,936 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:24:04,682 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:24:04,814 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:24:05,549 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:24:05,556 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1110 for LOIs [2019-10-07 14:24:06,022 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:24:06,507 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:24:06,634 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:24:07,382 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:24:07,903 WARN L191 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:24:08,396 WARN L191 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:24:08,516 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:24:09,253 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:24:10,094 WARN L191 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1120 [2019-10-07 14:24:10,578 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:24:10,700 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:24:11,446 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:24:11,953 WARN L191 SmtUtils]: Spent 491.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:24:12,455 WARN L191 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:24:12,574 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:24:13,318 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:24:13,816 WARN L191 SmtUtils]: Spent 496.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:24:14,307 WARN L191 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:24:14,425 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:24:15,161 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:24:15,643 WARN L191 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:24:16,129 WARN L191 SmtUtils]: Spent 484.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:24:16,247 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:24:16,990 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:24:17,272 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:24:17,274 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 14:24:17,279 INFO L168 Benchmark]: Toolchain (without parser) took 325666.82 ms. Allocated memory was 144.7 MB in the beginning and 3.3 GB in the end (delta: 3.1 GB). Free memory was 98.4 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2019-10-07 14:24:17,280 INFO L168 Benchmark]: CDTParser took 1.24 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 14:24:17,280 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1106.73 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 98.2 MB in the beginning and 143.6 MB in the end (delta: -45.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:24:17,281 INFO L168 Benchmark]: Boogie Preprocessor took 182.17 ms. Allocated memory is still 202.4 MB. Free memory was 143.6 MB in the beginning and 133.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-07 14:24:17,281 INFO L168 Benchmark]: RCFGBuilder took 4866.25 ms. Allocated memory was 202.4 MB in the beginning and 316.1 MB in the end (delta: 113.8 MB). Free memory was 133.8 MB in the beginning and 77.9 MB in the end (delta: 55.9 MB). Peak memory consumption was 169.7 MB. Max. memory is 7.1 GB. [2019-10-07 14:24:17,281 INFO L168 Benchmark]: TraceAbstraction took 319503.65 ms. Allocated memory was 316.1 MB in the beginning and 3.3 GB in the end (delta: 3.0 GB). Free memory was 77.9 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:24:17,284 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1106.73 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 98.2 MB in the beginning and 143.6 MB in the end (delta: -45.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 182.17 ms. Allocated memory is still 202.4 MB. Free memory was 143.6 MB in the beginning and 133.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4866.25 ms. Allocated memory was 202.4 MB in the beginning and 316.1 MB in the end (delta: 113.8 MB). Free memory was 133.8 MB in the beginning and 77.9 MB in the end (delta: 55.9 MB). Peak memory consumption was 169.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 319503.65 ms. Allocated memory was 316.1 MB in the beginning and 3.3 GB in the end (delta: 3.0 GB). Free memory was 77.9 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...