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_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:12:20,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:12:20,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:12:20,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:12:20,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:12:20,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:12:20,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:12:20,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:12:20,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:12:20,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:12:20,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:12:20,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:12:20,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:12:20,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:12:20,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:12:20,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:12:20,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:12:20,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:12:20,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:12:20,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:12:20,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:12:20,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:12:20,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:12:20,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:12:20,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:12:20,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:12:20,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:12:20,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:12:20,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:12:20,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:12:20,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:12:20,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:12:20,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:12:20,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:12:20,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:12:20,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:12:20,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:12:20,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:12:20,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:12:20,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:12:20,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:12:20,317 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 14:12:20,343 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:12:20,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:12:20,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:12:20,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:12:20,345 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:12:20,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:12:20,346 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:12:20,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:12:20,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:12:20,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:12:20,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:12:20,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:12:20,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:12:20,347 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:12:20,347 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:12:20,348 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:12:20,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:12:20,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:12:20,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:12:20,348 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:12:20,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:12:20,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:12:20,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:12:20,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:12:20,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:12:20,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:12:20,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:12:20,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:12:20,350 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 14:12:20,641 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:12:20,656 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:12:20,660 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:12:20,661 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:12:20,662 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:12:20,662 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product01.cil.c [2019-10-07 14:12:20,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/788854717/86c121515bc74eb7a2ae62fc28bd48d7/FLAG826f3c3cb [2019-10-07 14:12:21,383 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:12:21,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product01.cil.c [2019-10-07 14:12:21,406 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/788854717/86c121515bc74eb7a2ae62fc28bd48d7/FLAG826f3c3cb [2019-10-07 14:12:21,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/788854717/86c121515bc74eb7a2ae62fc28bd48d7 [2019-10-07 14:12:21,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:12:21,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:12:21,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:12:21,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:12:21,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:12:21,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:12:21" (1/1) ... [2019-10-07 14:12:21,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6157593b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:21, skipping insertion in model container [2019-10-07 14:12:21,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:12:21" (1/1) ... [2019-10-07 14:12:21,589 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:12:21,659 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:12:22,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:12:22,343 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:12:22,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:12:22,546 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:12:22,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:22 WrapperNode [2019-10-07 14:12:22,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:12:22,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:12:22,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:12:22,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:12:22,561 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:22" (1/1) ... [2019-10-07 14:12:22,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:22" (1/1) ... [2019-10-07 14:12:22,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:22" (1/1) ... [2019-10-07 14:12:22,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:22" (1/1) ... [2019-10-07 14:12:22,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:22" (1/1) ... [2019-10-07 14:12:22,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:22" (1/1) ... [2019-10-07 14:12:22,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:22" (1/1) ... [2019-10-07 14:12:22,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:12:22,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:12:22,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:12:22,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:12:22,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:22" (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 14:12:22,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:12:22,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:12:22,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:12:22,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:12:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:12:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:12:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:12:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:12:22,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:12:22,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:12:22,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:12:22,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:12:22,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:12:22,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:12:22,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:12:22,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:12:22,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:12:22,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:12:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:12:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:12:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:12:22,834 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:12:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:12:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:12:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:12:22,835 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:12:22,836 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:12:22,836 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:12:22,836 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:12:22,836 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:12:22,836 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:12:22,837 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:12:22,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:12:22,837 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:12:22,837 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:12:22,837 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:12:22,838 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:12:22,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:12:22,838 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:12:22,838 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:12:22,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:12:22,839 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:12:22,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:12:22,839 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:12:22,839 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:12:22,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:12:22,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:12:22,840 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:12:22,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:12:22,840 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:12:22,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:12:22,840 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:12:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:12:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:12:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:12:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:12:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:12:22,841 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:12:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:12:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:12:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:12:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:12:22,842 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:12:22,843 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:12:22,843 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:12:22,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:12:22,844 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:12:22,844 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:12:22,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:12:22,844 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:12:22,845 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:12:22,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:12:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:12:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:12:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:12:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:12:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:12:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:12:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:12:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:12:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:12:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:12:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:12:22,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-07 14:12:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-07 14:12:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-07 14:12:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-07 14:12:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:12:22,848 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:12:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:12:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:12:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:12:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:12:22,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:12:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:12:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:12:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:12:22,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:12:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:12:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:12:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:12:22,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:12:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:12:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:12:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:12:22,852 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:12:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:12:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:12:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:12:22,853 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:12:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:12:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:12:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:12:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:12:22,854 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:12:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:12:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:12:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:12:22,855 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:12:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:12:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:12:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:12:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:12:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:12:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:12:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:12:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:12:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:12:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:12:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:12:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:12:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:12:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:12:22,858 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:12:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:12:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:12:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:12:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:12:22,859 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:12:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:12:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:12:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:12:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:12:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:12:22,860 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:12:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:12:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:12:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:12:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:12:22,861 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:12:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:12:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:12:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:12:22,862 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:12:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:12:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:12:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:12:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:12:22,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:12:27,837 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:12:27,837 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:12:27,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:12:27 BoogieIcfgContainer [2019-10-07 14:12:27,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:12:27,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:12:27,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:12:27,844 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:12:27,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:12:21" (1/3) ... [2019-10-07 14:12:27,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b5ff42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:12:27, skipping insertion in model container [2019-10-07 14:12:27,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:12:22" (2/3) ... [2019-10-07 14:12:27,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36b5ff42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:12:27, skipping insertion in model container [2019-10-07 14:12:27,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:12:27" (3/3) ... [2019-10-07 14:12:27,848 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product01.cil.c [2019-10-07 14:12:27,858 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:12:27,867 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:12:27,879 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:12:27,912 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:12:27,912 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:12:27,912 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:12:27,912 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:12:27,912 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:12:27,912 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:12:27,913 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:12:27,913 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:12:27,946 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states. [2019-10-07 14:12:27,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-07 14:12:27,967 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:27,968 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 14:12:27,970 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:27,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:27,976 INFO L82 PathProgramCache]: Analyzing trace with hash 532440466, now seen corresponding path program 1 times [2019-10-07 14:12:27,985 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:27,986 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:27,986 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:27,986 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:27,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:28,564 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 14:12:28,565 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:28,565 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:28,566 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:12:28,570 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:12:28,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:12:28,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:12:28,587 INFO L87 Difference]: Start difference. First operand 530 states. Second operand 2 states. [2019-10-07 14:12:28,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:28,678 INFO L93 Difference]: Finished difference Result 433 states and 655 transitions. [2019-10-07 14:12:28,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:12:28,680 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 92 [2019-10-07 14:12:28,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:28,715 INFO L225 Difference]: With dead ends: 433 [2019-10-07 14:12:28,715 INFO L226 Difference]: Without dead ends: 399 [2019-10-07 14:12:28,720 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 14:12:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-10-07 14:12:28,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2019-10-07 14:12:28,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-07 14:12:28,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 604 transitions. [2019-10-07 14:12:28,816 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 604 transitions. Word has length 92 [2019-10-07 14:12:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:28,819 INFO L462 AbstractCegarLoop]: Abstraction has 399 states and 604 transitions. [2019-10-07 14:12:28,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:12:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 604 transitions. [2019-10-07 14:12:28,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-07 14:12:28,833 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:28,834 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 14:12:28,837 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:28,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:28,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1140994649, now seen corresponding path program 1 times [2019-10-07 14:12:28,838 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:28,838 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:28,838 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:28,839 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:28,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:29,205 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 14:12:29,206 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:29,206 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:29,207 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:12:29,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:12:29,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:12:29,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:12:29,214 INFO L87 Difference]: Start difference. First operand 399 states and 604 transitions. Second operand 8 states. [2019-10-07 14:12:29,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:29,392 INFO L93 Difference]: Finished difference Result 795 states and 1235 transitions. [2019-10-07 14:12:29,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:12:29,393 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2019-10-07 14:12:29,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:29,398 INFO L225 Difference]: With dead ends: 795 [2019-10-07 14:12:29,398 INFO L226 Difference]: Without dead ends: 438 [2019-10-07 14:12:29,414 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 14:12:29,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2019-10-07 14:12:29,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 403. [2019-10-07 14:12:29,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2019-10-07 14:12:29,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 608 transitions. [2019-10-07 14:12:29,487 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 608 transitions. Word has length 93 [2019-10-07 14:12:29,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:29,488 INFO L462 AbstractCegarLoop]: Abstraction has 403 states and 608 transitions. [2019-10-07 14:12:29,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:12:29,488 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 608 transitions. [2019-10-07 14:12:29,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-07 14:12:29,495 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:29,495 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 14:12:29,496 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:29,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:29,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1986946328, now seen corresponding path program 1 times [2019-10-07 14:12:29,497 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:29,498 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:29,498 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:29,498 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:29,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:29,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:29,783 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 14:12:29,784 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:29,784 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:29,784 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:12:29,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:12:29,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:12:29,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:12:29,786 INFO L87 Difference]: Start difference. First operand 403 states and 608 transitions. Second operand 7 states. [2019-10-07 14:12:33,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:33,451 INFO L93 Difference]: Finished difference Result 1240 states and 1933 transitions. [2019-10-07 14:12:33,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-07 14:12:33,452 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-10-07 14:12:33,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:33,462 INFO L225 Difference]: With dead ends: 1240 [2019-10-07 14:12:33,462 INFO L226 Difference]: Without dead ends: 879 [2019-10-07 14:12:33,466 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 14:12:33,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2019-10-07 14:12:33,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 852. [2019-10-07 14:12:33,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 852 states. [2019-10-07 14:12:33,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1331 transitions. [2019-10-07 14:12:33,545 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1331 transitions. Word has length 97 [2019-10-07 14:12:33,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:33,546 INFO L462 AbstractCegarLoop]: Abstraction has 852 states and 1331 transitions. [2019-10-07 14:12:33,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:12:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1331 transitions. [2019-10-07 14:12:33,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-07 14:12:33,549 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:33,549 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 14:12:33,550 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:33,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:33,550 INFO L82 PathProgramCache]: Analyzing trace with hash 312318611, now seen corresponding path program 1 times [2019-10-07 14:12:33,550 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:33,550 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:33,551 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:33,551 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:33,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:33,728 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 14:12:33,729 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:33,729 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:33,729 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:12:33,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:12:33,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:12:33,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:12:33,731 INFO L87 Difference]: Start difference. First operand 852 states and 1331 transitions. Second operand 5 states. [2019-10-07 14:12:33,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:33,812 INFO L93 Difference]: Finished difference Result 1350 states and 2121 transitions. [2019-10-07 14:12:33,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:33,812 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-10-07 14:12:33,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:33,823 INFO L225 Difference]: With dead ends: 1350 [2019-10-07 14:12:33,823 INFO L226 Difference]: Without dead ends: 874 [2019-10-07 14:12:33,825 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 14:12:33,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2019-10-07 14:12:33,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 864. [2019-10-07 14:12:33,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 864 states. [2019-10-07 14:12:33,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1346 transitions. [2019-10-07 14:12:33,881 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1346 transitions. Word has length 101 [2019-10-07 14:12:33,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:33,883 INFO L462 AbstractCegarLoop]: Abstraction has 864 states and 1346 transitions. [2019-10-07 14:12:33,883 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:12:33,883 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1346 transitions. [2019-10-07 14:12:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-07 14:12:33,887 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:33,887 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 14:12:33,888 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:33,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:33,888 INFO L82 PathProgramCache]: Analyzing trace with hash 664886123, now seen corresponding path program 1 times [2019-10-07 14:12:33,888 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:33,889 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:33,889 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:33,889 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:33,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:34,156 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 14:12:34,156 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:34,156 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:34,157 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:12:34,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:12:34,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:12:34,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:12:34,159 INFO L87 Difference]: Start difference. First operand 864 states and 1346 transitions. Second operand 8 states. [2019-10-07 14:12:37,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:37,697 INFO L93 Difference]: Finished difference Result 1833 states and 2859 transitions. [2019-10-07 14:12:37,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:12:37,698 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2019-10-07 14:12:37,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:37,707 INFO L225 Difference]: With dead ends: 1833 [2019-10-07 14:12:37,708 INFO L226 Difference]: Without dead ends: 1249 [2019-10-07 14:12:37,711 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 14:12:37,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2019-10-07 14:12:37,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1199. [2019-10-07 14:12:37,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2019-10-07 14:12:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1827 transitions. [2019-10-07 14:12:37,773 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1827 transitions. Word has length 105 [2019-10-07 14:12:37,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:37,773 INFO L462 AbstractCegarLoop]: Abstraction has 1199 states and 1827 transitions. [2019-10-07 14:12:37,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:12:37,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1827 transitions. [2019-10-07 14:12:37,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-07 14:12:37,776 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:37,776 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 14:12:37,776 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:37,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:37,777 INFO L82 PathProgramCache]: Analyzing trace with hash -356943508, now seen corresponding path program 1 times [2019-10-07 14:12:37,777 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:37,777 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:37,777 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:37,777 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:37,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:37,917 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 14:12:37,917 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:37,917 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:37,918 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:12:37,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:12:37,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:12:37,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:12:37,919 INFO L87 Difference]: Start difference. First operand 1199 states and 1827 transitions. Second operand 7 states. [2019-10-07 14:12:38,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:38,244 INFO L93 Difference]: Finished difference Result 2262 states and 3528 transitions. [2019-10-07 14:12:38,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:12:38,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2019-10-07 14:12:38,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:38,264 INFO L225 Difference]: With dead ends: 2262 [2019-10-07 14:12:38,264 INFO L226 Difference]: Without dead ends: 1199 [2019-10-07 14:12:38,274 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 14:12:38,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2019-10-07 14:12:38,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1199. [2019-10-07 14:12:38,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2019-10-07 14:12:38,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1795 transitions. [2019-10-07 14:12:38,354 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1795 transitions. Word has length 108 [2019-10-07 14:12:38,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:38,355 INFO L462 AbstractCegarLoop]: Abstraction has 1199 states and 1795 transitions. [2019-10-07 14:12:38,356 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:12:38,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1795 transitions. [2019-10-07 14:12:38,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-07 14:12:38,359 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:38,360 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 14:12:38,360 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:38,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:38,361 INFO L82 PathProgramCache]: Analyzing trace with hash -2072523158, now seen corresponding path program 1 times [2019-10-07 14:12:38,361 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:38,361 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:38,361 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:38,361 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:38,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:38,558 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 14:12:38,559 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:38,559 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:38,560 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:12:38,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:12:38,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:12:38,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:12:38,563 INFO L87 Difference]: Start difference. First operand 1199 states and 1795 transitions. Second operand 7 states. [2019-10-07 14:12:42,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:42,097 INFO L93 Difference]: Finished difference Result 2131 states and 3198 transitions. [2019-10-07 14:12:42,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:12:42,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2019-10-07 14:12:42,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:42,108 INFO L225 Difference]: With dead ends: 2131 [2019-10-07 14:12:42,108 INFO L226 Difference]: Without dead ends: 1269 [2019-10-07 14:12:42,112 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 14:12:42,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2019-10-07 14:12:42,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1226. [2019-10-07 14:12:42,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1226 states. [2019-10-07 14:12:42,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1829 transitions. [2019-10-07 14:12:42,182 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1829 transitions. Word has length 110 [2019-10-07 14:12:42,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:42,183 INFO L462 AbstractCegarLoop]: Abstraction has 1226 states and 1829 transitions. [2019-10-07 14:12:42,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:12:42,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1829 transitions. [2019-10-07 14:12:42,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:12:42,185 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:42,186 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 14:12:42,186 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:42,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:42,186 INFO L82 PathProgramCache]: Analyzing trace with hash 2083914191, now seen corresponding path program 1 times [2019-10-07 14:12:42,187 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:42,187 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:42,187 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:42,187 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:42,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:42,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:42,339 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 14:12:42,339 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:42,339 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:42,340 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:12:42,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:42,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:42,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:12:42,341 INFO L87 Difference]: Start difference. First operand 1226 states and 1829 transitions. Second operand 4 states. [2019-10-07 14:12:44,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:44,030 INFO L93 Difference]: Finished difference Result 3718 states and 5678 transitions. [2019-10-07 14:12:44,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:44,032 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 117 [2019-10-07 14:12:44,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:44,051 INFO L225 Difference]: With dead ends: 3718 [2019-10-07 14:12:44,051 INFO L226 Difference]: Without dead ends: 2534 [2019-10-07 14:12:44,058 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 14:12:44,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2019-10-07 14:12:44,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 2389. [2019-10-07 14:12:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2389 states. [2019-10-07 14:12:44,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 3622 transitions. [2019-10-07 14:12:44,185 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 3622 transitions. Word has length 117 [2019-10-07 14:12:44,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:44,187 INFO L462 AbstractCegarLoop]: Abstraction has 2389 states and 3622 transitions. [2019-10-07 14:12:44,187 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:12:44,187 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 3622 transitions. [2019-10-07 14:12:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-07 14:12:44,190 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:44,190 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 14:12:44,191 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:44,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:44,191 INFO L82 PathProgramCache]: Analyzing trace with hash 238299922, now seen corresponding path program 1 times [2019-10-07 14:12:44,191 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:44,191 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:44,192 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:44,192 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:44,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:44,370 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 14:12:44,370 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:44,371 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:44,371 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:12:44,372 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:44,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:44,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:12:44,373 INFO L87 Difference]: Start difference. First operand 2389 states and 3622 transitions. Second operand 4 states. [2019-10-07 14:12:45,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:45,873 INFO L93 Difference]: Finished difference Result 7129 states and 11061 transitions. [2019-10-07 14:12:45,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:45,873 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2019-10-07 14:12:45,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:45,908 INFO L225 Difference]: With dead ends: 7129 [2019-10-07 14:12:45,908 INFO L226 Difference]: Without dead ends: 4783 [2019-10-07 14:12:45,922 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 14:12:45,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2019-10-07 14:12:46,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4605. [2019-10-07 14:12:46,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4605 states. [2019-10-07 14:12:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4605 states to 4605 states and 7074 transitions. [2019-10-07 14:12:46,245 INFO L78 Accepts]: Start accepts. Automaton has 4605 states and 7074 transitions. Word has length 115 [2019-10-07 14:12:46,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:46,246 INFO L462 AbstractCegarLoop]: Abstraction has 4605 states and 7074 transitions. [2019-10-07 14:12:46,246 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:12:46,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4605 states and 7074 transitions. [2019-10-07 14:12:46,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-07 14:12:46,249 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:46,249 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 14:12:46,250 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:46,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:46,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1203904947, now seen corresponding path program 1 times [2019-10-07 14:12:46,250 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:46,251 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:46,251 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:46,251 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:46,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:46,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:46,461 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 14:12:46,462 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:46,462 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:46,462 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:12:46,463 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:46,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:46,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:12:46,464 INFO L87 Difference]: Start difference. First operand 4605 states and 7074 transitions. Second operand 4 states. [2019-10-07 14:12:48,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:48,617 INFO L93 Difference]: Finished difference Result 13859 states and 22019 transitions. [2019-10-07 14:12:48,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:48,618 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2019-10-07 14:12:48,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:48,724 INFO L225 Difference]: With dead ends: 13859 [2019-10-07 14:12:48,724 INFO L226 Difference]: Without dead ends: 9299 [2019-10-07 14:12:48,765 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 14:12:48,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9299 states. [2019-10-07 14:12:49,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9299 to 9056. [2019-10-07 14:12:49,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9056 states. [2019-10-07 14:12:49,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9056 states to 9056 states and 14196 transitions. [2019-10-07 14:12:49,544 INFO L78 Accepts]: Start accepts. Automaton has 9056 states and 14196 transitions. Word has length 116 [2019-10-07 14:12:49,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:49,544 INFO L462 AbstractCegarLoop]: Abstraction has 9056 states and 14196 transitions. [2019-10-07 14:12:49,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:12:49,545 INFO L276 IsEmpty]: Start isEmpty. Operand 9056 states and 14196 transitions. [2019-10-07 14:12:49,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-07 14:12:49,550 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:49,550 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 14:12:49,550 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:49,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:49,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1167556496, now seen corresponding path program 1 times [2019-10-07 14:12:49,551 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:49,551 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:49,552 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:49,552 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:49,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:49,990 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 14:12:49,991 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:49,991 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:49,991 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:12:49,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:49,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:49,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:12:49,993 INFO L87 Difference]: Start difference. First operand 9056 states and 14196 transitions. Second operand 4 states. [2019-10-07 14:12:52,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:52,648 INFO L93 Difference]: Finished difference Result 27374 states and 45264 transitions. [2019-10-07 14:12:52,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:52,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2019-10-07 14:12:52,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:52,759 INFO L225 Difference]: With dead ends: 27374 [2019-10-07 14:12:52,759 INFO L226 Difference]: Without dead ends: 18367 [2019-10-07 14:12:52,803 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 14:12:52,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18367 states. [2019-10-07 14:12:53,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18367 to 17995. [2019-10-07 14:12:53,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17995 states. [2019-10-07 14:12:53,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17995 states to 17995 states and 29186 transitions. [2019-10-07 14:12:53,842 INFO L78 Accepts]: Start accepts. Automaton has 17995 states and 29186 transitions. Word has length 120 [2019-10-07 14:12:53,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:12:53,842 INFO L462 AbstractCegarLoop]: Abstraction has 17995 states and 29186 transitions. [2019-10-07 14:12:53,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:12:53,843 INFO L276 IsEmpty]: Start isEmpty. Operand 17995 states and 29186 transitions. [2019-10-07 14:12:53,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-07 14:12:53,846 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:12:53,846 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 14:12:53,846 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:12:53,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:12:53,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1833252883, now seen corresponding path program 1 times [2019-10-07 14:12:53,847 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:12:53,847 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:53,847 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:53,847 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:12:53,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:12:54,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:12:54,155 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 14:12:54,155 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:12:54,156 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:12:54,156 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 14:12:54,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:12:54,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:12:54,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 14:12:54,157 INFO L87 Difference]: Start difference. First operand 17995 states and 29186 transitions. Second operand 4 states. [2019-10-07 14:12:56,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:12:56,699 INFO L93 Difference]: Finished difference Result 54555 states and 96409 transitions. [2019-10-07 14:12:56,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:12:56,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 121 [2019-10-07 14:12:56,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:12:56,943 INFO L225 Difference]: With dead ends: 54555 [2019-10-07 14:12:56,944 INFO L226 Difference]: Without dead ends: 36605 [2019-10-07 14:12:57,009 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 14:12:57,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36605 states. [2019-10-07 14:13:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36605 to 35702. [2019-10-07 14:13:00,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35702 states. [2019-10-07 14:13:00,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35702 states to 35702 states and 60633 transitions. [2019-10-07 14:13:00,651 INFO L78 Accepts]: Start accepts. Automaton has 35702 states and 60633 transitions. Word has length 121 [2019-10-07 14:13:00,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:00,652 INFO L462 AbstractCegarLoop]: Abstraction has 35702 states and 60633 transitions. [2019-10-07 14:13:00,652 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:13:00,652 INFO L276 IsEmpty]: Start isEmpty. Operand 35702 states and 60633 transitions. [2019-10-07 14:13:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-07 14:13:00,658 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:00,659 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] [2019-10-07 14:13:00,659 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:00,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:00,659 INFO L82 PathProgramCache]: Analyzing trace with hash -85360586, now seen corresponding path program 1 times [2019-10-07 14:13:00,660 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:00,660 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:00,660 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:00,660 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:00,821 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 14:13:00,822 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:00,822 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:00,822 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 14:13:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:01,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 3291 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:13:01,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:01,580 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 14:13:01,581 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:02,020 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 14:13:02,021 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:13:02,021 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:13:02,022 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:13:02,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:13:02,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:13:02,023 INFO L87 Difference]: Start difference. First operand 35702 states and 60633 transitions. Second operand 4 states. [2019-10-07 14:13:04,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:04,668 INFO L93 Difference]: Finished difference Result 75105 states and 132820 transitions. [2019-10-07 14:13:04,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:13:04,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2019-10-07 14:13:04,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:05,020 INFO L225 Difference]: With dead ends: 75105 [2019-10-07 14:13:05,021 INFO L226 Difference]: Without dead ends: 39446 [2019-10-07 14:13:05,177 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 329 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 14:13:05,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39446 states. [2019-10-07 14:13:09,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39446 to 39446. [2019-10-07 14:13:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39446 states. [2019-10-07 14:13:09,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39446 states to 39446 states and 67641 transitions. [2019-10-07 14:13:09,929 INFO L78 Accepts]: Start accepts. Automaton has 39446 states and 67641 transitions. Word has length 165 [2019-10-07 14:13:09,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:09,930 INFO L462 AbstractCegarLoop]: Abstraction has 39446 states and 67641 transitions. [2019-10-07 14:13:09,931 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:13:09,931 INFO L276 IsEmpty]: Start isEmpty. Operand 39446 states and 67641 transitions. [2019-10-07 14:13:09,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-07 14:13:09,943 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:09,944 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] [2019-10-07 14:13:10,157 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:10,157 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:10,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:10,158 INFO L82 PathProgramCache]: Analyzing trace with hash -624416135, now seen corresponding path program 1 times [2019-10-07 14:13:10,158 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:10,158 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:10,158 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:10,158 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:10,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:10,702 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 14:13:10,702 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:10,702 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:10,703 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 14:13:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:11,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 3296 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:13:11,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:11,419 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-10-07 14:13:11,419 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:11,784 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 14:13:11,785 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:13:11,785 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:13:11,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:13:11,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:13:11,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:13:11,793 INFO L87 Difference]: Start difference. First operand 39446 states and 67641 transitions. Second operand 4 states. [2019-10-07 14:13:14,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:14,025 INFO L93 Difference]: Finished difference Result 82593 states and 146737 transitions. [2019-10-07 14:13:14,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:13:14,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 170 [2019-10-07 14:13:14,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:14,247 INFO L225 Difference]: With dead ends: 82593 [2019-10-07 14:13:14,247 INFO L226 Difference]: Without dead ends: 43190 [2019-10-07 14:13:14,348 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 337 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:13:14,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43190 states. [2019-10-07 14:13:16,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43190 to 43190. [2019-10-07 14:13:16,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43190 states. [2019-10-07 14:13:17,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43190 states to 43190 states and 74649 transitions. [2019-10-07 14:13:17,123 INFO L78 Accepts]: Start accepts. Automaton has 43190 states and 74649 transitions. Word has length 170 [2019-10-07 14:13:17,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:17,124 INFO L462 AbstractCegarLoop]: Abstraction has 43190 states and 74649 transitions. [2019-10-07 14:13:17,124 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:13:17,124 INFO L276 IsEmpty]: Start isEmpty. Operand 43190 states and 74649 transitions. [2019-10-07 14:13:17,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-07 14:13:17,131 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:17,132 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] [2019-10-07 14:13:17,341 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:17,341 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:17,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:17,342 INFO L82 PathProgramCache]: Analyzing trace with hash 711103097, now seen corresponding path program 1 times [2019-10-07 14:13:17,342 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:17,343 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:17,343 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:17,343 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:17,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:17,531 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 14:13:17,531 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:17,531 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:17,532 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 14:13:18,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:18,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 3300 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:13:18,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:18,160 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:13:18,161 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:18,564 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 14:13:18,564 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:13:18,564 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:13:18,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:13:18,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:13:18,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:13:18,566 INFO L87 Difference]: Start difference. First operand 43190 states and 74649 transitions. Second operand 4 states. [2019-10-07 14:13:20,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:20,475 INFO L93 Difference]: Finished difference Result 90081 states and 160654 transitions. [2019-10-07 14:13:20,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:13:20,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2019-10-07 14:13:20,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:20,731 INFO L225 Difference]: With dead ends: 90081 [2019-10-07 14:13:20,732 INFO L226 Difference]: Without dead ends: 46934 [2019-10-07 14:13:20,839 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 345 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:13:20,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46934 states. [2019-10-07 14:13:24,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46934 to 46934. [2019-10-07 14:13:24,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46934 states. [2019-10-07 14:13:24,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46934 states to 46934 states and 81657 transitions. [2019-10-07 14:13:24,896 INFO L78 Accepts]: Start accepts. Automaton has 46934 states and 81657 transitions. Word has length 174 [2019-10-07 14:13:24,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:24,896 INFO L462 AbstractCegarLoop]: Abstraction has 46934 states and 81657 transitions. [2019-10-07 14:13:24,896 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:13:24,897 INFO L276 IsEmpty]: Start isEmpty. Operand 46934 states and 81657 transitions. [2019-10-07 14:13:24,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-07 14:13:24,903 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:24,903 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] [2019-10-07 14:13:25,111 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:25,112 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:25,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:25,112 INFO L82 PathProgramCache]: Analyzing trace with hash 2001500758, now seen corresponding path program 1 times [2019-10-07 14:13:25,113 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:25,113 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:25,113 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:25,113 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:25,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:25,269 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 14:13:25,270 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:25,270 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:25,270 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 14:13:25,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:25,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 3303 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:13:25,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:25,980 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 14:13:25,980 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:26,399 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 14:13:26,401 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:13:26,402 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 7 [2019-10-07 14:13:26,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:13:26,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:13:26,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:13:26,403 INFO L87 Difference]: Start difference. First operand 46934 states and 81657 transitions. Second operand 4 states. [2019-10-07 14:13:28,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:28,202 INFO L93 Difference]: Finished difference Result 97569 states and 174571 transitions. [2019-10-07 14:13:28,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:13:28,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2019-10-07 14:13:28,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:28,371 INFO L225 Difference]: With dead ends: 97569 [2019-10-07 14:13:28,371 INFO L226 Difference]: Without dead ends: 50678 [2019-10-07 14:13:28,441 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 351 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:13:28,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50678 states. [2019-10-07 14:13:29,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50678 to 50678. [2019-10-07 14:13:29,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50678 states. [2019-10-07 14:13:32,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50678 states to 50678 states and 88665 transitions. [2019-10-07 14:13:32,310 INFO L78 Accepts]: Start accepts. Automaton has 50678 states and 88665 transitions. Word has length 177 [2019-10-07 14:13:32,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:32,311 INFO L462 AbstractCegarLoop]: Abstraction has 50678 states and 88665 transitions. [2019-10-07 14:13:32,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:13:32,311 INFO L276 IsEmpty]: Start isEmpty. Operand 50678 states and 88665 transitions. [2019-10-07 14:13:32,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-07 14:13:32,316 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:32,317 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] [2019-10-07 14:13:32,519 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:32,520 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:32,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:32,521 INFO L82 PathProgramCache]: Analyzing trace with hash -2084800312, now seen corresponding path program 1 times [2019-10-07 14:13:32,521 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:32,521 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:32,522 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:32,522 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:32,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:13:32,782 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:32,783 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:32,783 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 14:13:33,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:33,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 3299 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:13:33,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:33,639 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 14:13:33,639 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:34,030 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 14:13:34,030 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:13:34,030 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [9] total 16 [2019-10-07 14:13:34,032 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:13:34,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:13:34,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:13:34,034 INFO L87 Difference]: Start difference. First operand 50678 states and 88665 transitions. Second operand 9 states. [2019-10-07 14:13:36,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:36,059 INFO L93 Difference]: Finished difference Result 52126 states and 95703 transitions. [2019-10-07 14:13:36,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:13:36,060 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 179 [2019-10-07 14:13:36,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:36,284 INFO L225 Difference]: With dead ends: 52126 [2019-10-07 14:13:36,284 INFO L226 Difference]: Without dead ends: 51907 [2019-10-07 14:13:36,310 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 355 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2019-10-07 14:13:36,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51907 states. [2019-10-07 14:13:37,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51907 to 51161. [2019-10-07 14:13:37,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51161 states. [2019-10-07 14:13:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51161 states to 51161 states and 90983 transitions. [2019-10-07 14:13:37,999 INFO L78 Accepts]: Start accepts. Automaton has 51161 states and 90983 transitions. Word has length 179 [2019-10-07 14:13:37,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:37,999 INFO L462 AbstractCegarLoop]: Abstraction has 51161 states and 90983 transitions. [2019-10-07 14:13:37,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:13:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 51161 states and 90983 transitions. [2019-10-07 14:13:38,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-10-07 14:13:38,004 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:38,004 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:13:38,217 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:38,218 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:38,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:38,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1662154419, now seen corresponding path program 1 times [2019-10-07 14:13:38,218 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:38,219 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:38,219 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:38,219 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:38,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:38,417 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-10-07 14:13:38,417 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:38,417 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:38,417 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 14:13:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:39,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 3314 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:13:39,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:39,459 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 14:13:39,460 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:39,821 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 14:13:39,822 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:13:39,822 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [9] total 12 [2019-10-07 14:13:39,823 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:13:39,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:13:39,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:13:39,823 INFO L87 Difference]: Start difference. First operand 51161 states and 90983 transitions. Second operand 5 states. [2019-10-07 14:13:40,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:13:40,929 INFO L93 Difference]: Finished difference Result 51380 states and 91227 transitions. [2019-10-07 14:13:40,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:13:40,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2019-10-07 14:13:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:13:41,100 INFO L225 Difference]: With dead ends: 51380 [2019-10-07 14:13:41,101 INFO L226 Difference]: Without dead ends: 51161 [2019-10-07 14:13:41,125 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 369 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-10-07 14:13:41,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51161 states. [2019-10-07 14:13:44,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51161 to 51161. [2019-10-07 14:13:44,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51161 states. [2019-10-07 14:13:44,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51161 states to 51161 states and 90859 transitions. [2019-10-07 14:13:44,740 INFO L78 Accepts]: Start accepts. Automaton has 51161 states and 90859 transitions. Word has length 184 [2019-10-07 14:13:44,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:13:44,740 INFO L462 AbstractCegarLoop]: Abstraction has 51161 states and 90859 transitions. [2019-10-07 14:13:44,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:13:44,741 INFO L276 IsEmpty]: Start isEmpty. Operand 51161 states and 90859 transitions. [2019-10-07 14:13:44,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-07 14:13:44,749 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:13:44,749 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] [2019-10-07 14:13:44,949 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:13:44,950 INFO L410 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:13:44,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:13:44,951 INFO L82 PathProgramCache]: Analyzing trace with hash 664701037, now seen corresponding path program 1 times [2019-10-07 14:13:44,951 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:13:44,951 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:44,952 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:44,952 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:13:44,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:13:45,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:45,152 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 14:13:45,152 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:13:45,153 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:13:45,153 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 14:13:45,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:13:45,967 INFO L256 TraceCheckSpWp]: Trace formula consists of 3357 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:13:45,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:13:46,047 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 14:13:46,047 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:13:46,643 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:46,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:46,662 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:46,667 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:46,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:46,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:46,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:46,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:46,760 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 14:13:46,760 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:13:46,788 INFO L162 IcfgInterpreter]: Started Sifa with 165 locations of interest [2019-10-07 14:13:46,788 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:13:46,795 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:13:46,802 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:13:46,802 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:14:36,434 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 758 [2019-10-07 14:14:41,260 WARN L191 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:14:41,727 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 844 [2019-10-07 14:14:42,277 WARN L191 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 844 [2019-10-07 14:14:42,568 WARN L191 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 844 [2019-10-07 14:14:43,115 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:14:43,594 WARN L191 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:14:44,041 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:14:44,549 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:14:45,524 WARN L191 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 1030 DAG size of output: 1028 [2019-10-07 14:14:45,971 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:14:46,476 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:14:46,919 WARN L191 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:14:47,375 WARN L191 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:14:47,947 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 1028 [2019-10-07 14:14:47,967 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 382 for LOIs [2019-10-07 14:14:48,237 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 727 [2019-10-07 14:14:48,344 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 727 [2019-10-07 14:14:48,686 WARN L191 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 911 [2019-10-07 14:14:48,688 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1078 for LOIs [2019-10-07 14:14:49,126 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:49,567 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:49,689 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:14:50,529 WARN L191 SmtUtils]: Spent 838.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:14:50,980 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:51,413 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:51,534 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:14:52,267 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:14:52,790 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:53,315 WARN L191 SmtUtils]: Spent 521.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:53,564 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:14:54,584 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:14:55,403 WARN L191 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 1246 DAG size of output: 1078 [2019-10-07 14:14:55,846 WARN L191 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:56,059 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:14:56,938 WARN L191 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:14:57,408 WARN L191 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:57,848 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:57,961 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:14:58,727 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:14:59,243 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:59,680 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:14:59,796 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:00,549 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:00,979 WARN L191 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:01,414 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:01,533 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:02,365 WARN L191 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:02,803 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:03,239 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:03,356 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:04,097 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:04,532 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:05,061 WARN L191 SmtUtils]: Spent 526.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:05,177 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:05,915 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:06,355 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:06,791 WARN L191 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:06,908 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:07,731 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:08,164 WARN L191 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:08,624 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:08,746 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:09,493 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:09,947 WARN L191 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:10,475 WARN L191 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:10,592 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:11,363 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:11,800 WARN L191 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:12,245 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1078 [2019-10-07 14:15:12,360 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:13,106 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:14,771 WARN L191 SmtUtils]: Spent 1.62 s on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:15,511 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:15,641 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:16,378 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:18,453 WARN L191 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:15:19,215 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:19,342 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:20,076 WARN L191 SmtUtils]: Spent 732.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:20,901 WARN L191 SmtUtils]: Spent 821.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:21,642 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:21,757 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:22,482 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:24,211 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:15:25,050 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:15:25,178 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:15:25,914 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:27,348 WARN L191 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:15:28,095 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:28,222 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:15:28,969 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:30,232 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:15:30,982 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:15:31,099 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:15:31,854 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:32,611 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:15:33,355 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:15:33,515 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:15:34,273 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1253 [2019-10-07 14:15:35,028 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:35,781 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:35,907 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:15:36,654 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:37,424 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:38,175 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:38,297 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:15:39,059 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:40,438 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1255 [2019-10-07 14:15:41,211 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:41,476 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:15:42,536 WARN L191 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:43,294 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:44,057 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:44,172 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:15:44,922 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:15:46,261 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:15:47,016 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:47,236 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:48,058 WARN L191 SmtUtils]: Spent 820.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:49,393 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:15:50,146 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:50,270 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:51,013 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:51,754 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:52,487 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:52,604 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:15:53,337 WARN L191 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:15:54,228 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:54,995 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:55,117 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:15:55,860 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:57,103 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:15:57,844 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:15:57,973 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:15:58,716 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:15:59,950 WARN L191 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:16:00,701 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:16:00,816 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:01,558 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:02,791 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1246 [2019-10-07 14:16:03,532 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:16:03,655 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:04,402 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:05,727 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1248 [2019-10-07 14:16:06,502 WARN L191 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:06,627 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:07,365 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:16:08,714 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:16:09,461 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:09,582 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:16:10,337 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:11,661 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:16:12,395 WARN L191 SmtUtils]: Spent 730.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:12,515 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:16:13,251 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:14,005 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:14,743 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:14,858 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:16:15,602 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:16,938 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:16:17,694 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:17,815 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:16:18,551 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:19,876 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:16:20,621 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:20,743 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:16:21,488 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:22,248 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:22,993 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:23,108 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:16:23,839 WARN L191 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:25,221 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:16:25,965 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:26,086 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:26,816 WARN L191 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:28,080 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:16:28,843 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:16:28,966 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:29,707 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:30,958 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:16:31,715 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:16:31,832 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:32,585 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:33,897 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:16:34,642 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:16:34,784 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:35,535 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:36,875 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:16:37,628 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:37,753 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:16:38,490 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:39,811 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:16:40,539 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:40,661 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:16:41,398 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:42,152 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:42,897 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:43,015 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:16:43,755 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:16:45,159 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:16:45,919 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:46,050 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:46,809 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:47,582 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:48,322 WARN L191 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:48,459 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:49,199 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:49,952 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:50,688 WARN L191 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:50,804 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:51,562 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:52,887 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1248 [2019-10-07 14:16:53,614 WARN L191 SmtUtils]: Spent 724.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:53,747 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:54,505 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:16:55,759 WARN L191 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1250 [2019-10-07 14:16:56,523 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:16:56,644 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:16:57,410 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:16:58,789 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1255 [2019-10-07 14:16:59,558 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:16:59,681 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:17:00,444 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:17:01,786 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1255 [2019-10-07 14:17:02,541 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:17:02,662 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:17:03,408 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1255 [2019-10-07 14:17:04,752 WARN L191 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:17:05,526 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:05,650 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:06,379 WARN L191 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:07,690 WARN L191 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:17:08,447 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:08,566 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:09,291 WARN L191 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:10,047 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:10,786 WARN L191 SmtUtils]: Spent 735.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:10,900 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:11,647 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:12,915 WARN L191 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:17:13,673 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:17:13,792 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:17:14,555 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:15,835 WARN L191 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1246 [2019-10-07 14:17:16,602 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:17:16,731 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:17:17,518 WARN L191 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:18,838 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1248 DAG size of output: 1246 [2019-10-07 14:17:19,600 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1246 [2019-10-07 14:17:19,715 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:17:20,469 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:21,827 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1255 DAG size of output: 1248 [2019-10-07 14:17:22,590 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:22,710 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:17:23,478 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:24,749 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1257 DAG size of output: 1250 [2019-10-07 14:17:25,514 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:17:25,638 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:17:26,389 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1250 [2019-10-07 14:17:27,746 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:17:28,503 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:28,620 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:29,377 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:30,717 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:17:31,470 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:31,588 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:32,339 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:33,687 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:17:34,457 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:34,582 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:35,337 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:36,680 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1246 DAG size of output: 1244 [2019-10-07 14:17:37,458 WARN L191 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:37,586 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:38,352 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:39,092 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:39,850 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:39,965 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:40,723 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:42,218 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:17:42,980 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:43,102 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:17:43,873 WARN L191 SmtUtils]: Spent 769.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:45,239 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2019-10-07 14:17:45,987 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:46,113 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 445 [2019-10-07 14:17:46,855 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1248 [2019-10-07 14:17:46,861 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1100 for LOIs [2019-10-07 14:17:47,331 WARN L191 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:17:47,829 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1100 [2019-10-07 14:17:47,945 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:48,694 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:49,224 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:17:49,741 WARN L191 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:17:49,879 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:50,627 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:51,557 WARN L191 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 1246 DAG size of output: 1110 [2019-10-07 14:17:52,051 WARN L191 SmtUtils]: Spent 492.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:17:52,172 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:52,930 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:53,441 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:17:53,942 WARN L191 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:17:54,056 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:54,819 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:55,305 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:17:55,816 WARN L191 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:17:55,930 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:56,699 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:57,185 WARN L191 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:17:57,675 WARN L191 SmtUtils]: Spent 487.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:17:57,787 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 442 [2019-10-07 14:17:58,530 WARN L191 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 1244 [2019-10-07 14:17:58,794 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:17:58,795 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 14:17:58,802 INFO L168 Benchmark]: Toolchain (without parser) took 337230.77 ms. Allocated memory was 144.7 MB in the beginning and 3.2 GB in the end (delta: 3.1 GB). Free memory was 98.3 MB in the beginning and 2.3 GB in the end (delta: -2.2 GB). Peak memory consumption was 890.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:17:58,802 INFO L168 Benchmark]: CDTParser took 0.22 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: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 14:17:58,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 975.57 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 98.1 MB in the beginning and 148.5 MB in the end (delta: -50.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:17:58,803 INFO L168 Benchmark]: Boogie Preprocessor took 196.95 ms. Allocated memory is still 204.5 MB. Free memory was 148.5 MB in the beginning and 139.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-10-07 14:17:58,803 INFO L168 Benchmark]: RCFGBuilder took 5093.95 ms. Allocated memory was 204.5 MB in the beginning and 299.9 MB in the end (delta: 95.4 MB). Free memory was 139.4 MB in the beginning and 221.3 MB in the end (delta: -81.9 MB). Peak memory consumption was 158.0 MB. Max. memory is 7.1 GB. [2019-10-07 14:17:58,803 INFO L168 Benchmark]: TraceAbstraction took 330959.71 ms. Allocated memory was 299.9 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 221.3 MB in the beginning and 2.3 GB in the end (delta: -2.1 GB). Peak memory consumption was 857.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:17:58,805 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 975.57 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 98.1 MB in the beginning and 148.5 MB in the end (delta: -50.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 196.95 ms. Allocated memory is still 204.5 MB. Free memory was 148.5 MB in the beginning and 139.4 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5093.95 ms. Allocated memory was 204.5 MB in the beginning and 299.9 MB in the end (delta: 95.4 MB). Free memory was 139.4 MB in the beginning and 221.3 MB in the end (delta: -81.9 MB). Peak memory consumption was 158.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 330959.71 ms. Allocated memory was 299.9 MB in the beginning and 3.2 GB in the end (delta: 2.9 GB). Free memory was 221.3 MB in the beginning and 2.3 GB in the end (delta: -2.1 GB). Peak memory consumption was 857.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...