java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product25.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:32:52,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:32:52,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:32:52,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:32:52,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:32:52,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:32:52,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:32:52,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:32:52,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:32:52,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:32:52,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:32:52,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:32:52,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:32:52,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:32:52,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:32:52,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:32:52,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:32:52,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:32:52,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:32:52,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:32:52,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:32:52,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:32:52,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:32:52,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:32:52,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:32:52,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:32:52,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:32:52,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:32:52,687 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:32:52,688 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:32:52,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:32:52,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:32:52,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:32:52,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:32:52,694 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:32:52,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:32:52,695 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:32:52,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:32:52,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:32:52,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:32:52,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:32:52,701 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 14:32:52,738 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:32:52,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:32:52,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:32:52,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:32:52,743 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:32:52,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:32:52,744 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:32:52,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:32:52,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:32:52,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:32:52,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:32:52,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:32:52,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:32:52,746 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:32:52,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:32:52,746 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:32:52,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:32:52,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:32:52,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:32:52,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:32:52,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:32:52,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:32:52,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:32:52,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:32:52,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:32:52,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:32:52,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:32:52,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:32:52,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 14:32:53,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:32:53,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:32:53,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:32:53,048 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:32:53,049 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:32:53,050 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product25.cil.c [2019-10-07 14:32:53,114 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8925ebfff/914aa241025a47d5aac1662a391b8922/FLAG0aaadc4fb [2019-10-07 14:32:53,738 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:32:53,740 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product25.cil.c [2019-10-07 14:32:53,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8925ebfff/914aa241025a47d5aac1662a391b8922/FLAG0aaadc4fb [2019-10-07 14:32:53,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8925ebfff/914aa241025a47d5aac1662a391b8922 [2019-10-07 14:32:53,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:32:53,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:32:53,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:32:53,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:32:53,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:32:53,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:32:53" (1/1) ... [2019-10-07 14:32:53,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52986215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:53, skipping insertion in model container [2019-10-07 14:32:53,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:32:53" (1/1) ... [2019-10-07 14:32:53,976 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:32:54,039 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:32:54,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:32:54,687 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:32:54,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:32:54,937 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:32:54,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:54 WrapperNode [2019-10-07 14:32:54,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:32:54,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:32:54,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:32:54,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:32:54,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:54" (1/1) ... [2019-10-07 14:32:54,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:54" (1/1) ... [2019-10-07 14:32:54,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:54" (1/1) ... [2019-10-07 14:32:54,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:54" (1/1) ... [2019-10-07 14:32:55,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:54" (1/1) ... [2019-10-07 14:32:55,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:54" (1/1) ... [2019-10-07 14:32:55,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:54" (1/1) ... [2019-10-07 14:32:55,154 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:32:55,155 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:32:55,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:32:55,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:32:55,156 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:32:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:32:55,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:32:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:32:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:32:55,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:32:55,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:32:55,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:32:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:32:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:32:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:32:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:32:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:32:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:32:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:32:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:32:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:32:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:32:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:32:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:32:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:32:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:32:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:32:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:32:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:32:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:32:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:32:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:32:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:32:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:32:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:32:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:32:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:32:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:32:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:32:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:32:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:32:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:32:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:32:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:32:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:32:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:32:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:32:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:32:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:32:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:32:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:32:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:32:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:32:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:32:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:32:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:32:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:32:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:32:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:32:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:32:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:32:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:32:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:32:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:32:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:32:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:32:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:32:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:32:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:32:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:32:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:32:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:32:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:32:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:32:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:32:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:32:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:32:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:32:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:32:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:32:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:32:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:32:55,256 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:32:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:32:55,257 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:32:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:32:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__1 [2019-10-07 14:32:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__2 [2019-10-07 14:32:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__3 [2019-10-07 14:32:55,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification9_spec__4 [2019-10-07 14:32:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:32:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:32:55,259 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:32:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:32:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:32:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:32:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:32:55,260 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:32:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:32:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:32:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:32:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:32:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:32:55,261 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:32:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:32:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:32:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:32:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:32:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:32:55,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:32:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:32:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:32:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:32:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:32:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:32:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:32:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:32:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:32:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:32:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:32:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:32:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:32:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:32:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:32:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:32:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:32:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:32:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:32:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:32:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:32:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:32:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:32:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:32:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:32:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:32:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:32:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:32:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:32:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:32:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:32:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:32:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:32:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:32:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:32:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:32:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:32:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:32:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:32:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:32:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:32:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:32:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:32:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:32:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:32:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:32:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:32:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:32:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:32:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:32:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:32:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:32:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:32:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:32:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:32:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:32:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:32:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:32:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:32:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:32:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:33:00,076 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:33:00,077 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:33:00,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:33:00 BoogieIcfgContainer [2019-10-07 14:33:00,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:33:00,080 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:33:00,080 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:33:00,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:33:00,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:32:53" (1/3) ... [2019-10-07 14:33:00,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595a8227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:33:00, skipping insertion in model container [2019-10-07 14:33:00,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:32:54" (2/3) ... [2019-10-07 14:33:00,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595a8227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:33:00, skipping insertion in model container [2019-10-07 14:33:00,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:33:00" (3/3) ... [2019-10-07 14:33:00,087 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product25.cil.c [2019-10-07 14:33:00,096 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:33:00,106 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:33:00,119 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:33:00,151 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:33:00,152 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:33:00,152 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:33:00,152 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:33:00,152 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:33:00,152 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:33:00,152 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:33:00,152 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:33:00,185 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states. [2019-10-07 14:33:00,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-07 14:33:00,202 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:00,203 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 14:33:00,205 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:00,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:00,211 INFO L82 PathProgramCache]: Analyzing trace with hash 893347726, now seen corresponding path program 1 times [2019-10-07 14:33:00,220 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:00,221 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:00,221 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:00,221 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:00,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:00,864 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 14:33:00,865 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:00,866 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:00,866 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:33:00,873 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:33:00,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:33:00,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:33:00,890 INFO L87 Difference]: Start difference. First operand 540 states. Second operand 8 states. [2019-10-07 14:33:01,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:01,107 INFO L93 Difference]: Finished difference Result 832 states and 1275 transitions. [2019-10-07 14:33:01,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:33:01,109 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-10-07 14:33:01,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:01,140 INFO L225 Difference]: With dead ends: 832 [2019-10-07 14:33:01,140 INFO L226 Difference]: Without dead ends: 448 [2019-10-07 14:33:01,149 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 14:33:01,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2019-10-07 14:33:01,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 413. [2019-10-07 14:33:01,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-07 14:33:01,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 612 transitions. [2019-10-07 14:33:01,242 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 612 transitions. Word has length 92 [2019-10-07 14:33:01,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:01,243 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 612 transitions. [2019-10-07 14:33:01,243 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:33:01,243 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 612 transitions. [2019-10-07 14:33:01,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-07 14:33:01,250 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:01,250 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 14:33:01,251 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:01,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:01,251 INFO L82 PathProgramCache]: Analyzing trace with hash -1609509534, now seen corresponding path program 1 times [2019-10-07 14:33:01,251 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:01,252 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:01,252 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:01,252 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:01,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:01,607 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 14:33:01,608 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:01,608 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:01,608 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:33:01,610 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:33:01,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:33:01,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:33:01,611 INFO L87 Difference]: Start difference. First operand 413 states and 612 transitions. Second operand 7 states. [2019-10-07 14:33:05,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:05,408 INFO L93 Difference]: Finished difference Result 1270 states and 1945 transitions. [2019-10-07 14:33:05,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-07 14:33:05,417 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-10-07 14:33:05,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:05,425 INFO L225 Difference]: With dead ends: 1270 [2019-10-07 14:33:05,425 INFO L226 Difference]: Without dead ends: 899 [2019-10-07 14:33:05,428 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 14:33:05,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 899 states. [2019-10-07 14:33:05,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 899 to 872. [2019-10-07 14:33:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 872 states. [2019-10-07 14:33:05,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1339 transitions. [2019-10-07 14:33:05,547 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1339 transitions. Word has length 97 [2019-10-07 14:33:05,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:05,555 INFO L462 AbstractCegarLoop]: Abstraction has 872 states and 1339 transitions. [2019-10-07 14:33:05,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:33:05,556 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1339 transitions. [2019-10-07 14:33:05,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-10-07 14:33:05,565 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:05,565 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 14:33:05,566 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:05,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:05,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1458529294, now seen corresponding path program 1 times [2019-10-07 14:33:05,567 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:05,567 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:05,569 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:05,570 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:05,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:05,778 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 14:33:05,779 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:05,779 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:05,779 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 14:33:05,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:33:05,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:33:05,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 14:33:05,782 INFO L87 Difference]: Start difference. First operand 872 states and 1339 transitions. Second operand 5 states. [2019-10-07 14:33:05,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:05,870 INFO L93 Difference]: Finished difference Result 1380 states and 2133 transitions. [2019-10-07 14:33:05,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:05,871 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-10-07 14:33:05,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:05,882 INFO L225 Difference]: With dead ends: 1380 [2019-10-07 14:33:05,882 INFO L226 Difference]: Without dead ends: 894 [2019-10-07 14:33:05,885 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 14:33:05,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2019-10-07 14:33:05,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 884. [2019-10-07 14:33:05,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2019-10-07 14:33:06,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1354 transitions. [2019-10-07 14:33:06,044 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1354 transitions. Word has length 101 [2019-10-07 14:33:06,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:06,045 INFO L462 AbstractCegarLoop]: Abstraction has 884 states and 1354 transitions. [2019-10-07 14:33:06,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:33:06,045 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1354 transitions. [2019-10-07 14:33:06,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-10-07 14:33:06,049 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:06,049 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 14:33:06,049 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:06,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:06,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1482107146, now seen corresponding path program 1 times [2019-10-07 14:33:06,050 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:06,050 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:06,050 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:06,051 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:06,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:06,254 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 14:33:06,255 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:06,255 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:06,255 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 14:33:06,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 14:33:06,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 14:33:06,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:33:06,256 INFO L87 Difference]: Start difference. First operand 884 states and 1354 transitions. Second operand 8 states. [2019-10-07 14:33:09,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:09,626 INFO L93 Difference]: Finished difference Result 1873 states and 2875 transitions. [2019-10-07 14:33:09,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:33:09,626 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2019-10-07 14:33:09,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:09,636 INFO L225 Difference]: With dead ends: 1873 [2019-10-07 14:33:09,636 INFO L226 Difference]: Without dead ends: 1279 [2019-10-07 14:33:09,639 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 14:33:09,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2019-10-07 14:33:09,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1229. [2019-10-07 14:33:09,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1229 states. [2019-10-07 14:33:09,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1839 transitions. [2019-10-07 14:33:09,727 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1839 transitions. Word has length 105 [2019-10-07 14:33:09,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:09,730 INFO L462 AbstractCegarLoop]: Abstraction has 1229 states and 1839 transitions. [2019-10-07 14:33:09,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 14:33:09,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1839 transitions. [2019-10-07 14:33:09,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-10-07 14:33:09,733 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:09,734 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 14:33:09,734 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:09,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:09,734 INFO L82 PathProgramCache]: Analyzing trace with hash -258804804, now seen corresponding path program 1 times [2019-10-07 14:33:09,735 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:09,735 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:09,735 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:09,735 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:09,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:09,910 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 14:33:09,911 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:09,911 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:09,911 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:33:09,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:33:09,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:33:09,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:33:09,913 INFO L87 Difference]: Start difference. First operand 1229 states and 1839 transitions. Second operand 7 states. [2019-10-07 14:33:10,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:10,136 INFO L93 Difference]: Finished difference Result 2312 states and 3548 transitions. [2019-10-07 14:33:10,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:33:10,137 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2019-10-07 14:33:10,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:10,148 INFO L225 Difference]: With dead ends: 2312 [2019-10-07 14:33:10,148 INFO L226 Difference]: Without dead ends: 1229 [2019-10-07 14:33:10,155 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 14:33:10,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2019-10-07 14:33:10,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2019-10-07 14:33:10,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1229 states. [2019-10-07 14:33:10,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1807 transitions. [2019-10-07 14:33:10,241 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1807 transitions. Word has length 108 [2019-10-07 14:33:10,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:10,242 INFO L462 AbstractCegarLoop]: Abstraction has 1229 states and 1807 transitions. [2019-10-07 14:33:10,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:33:10,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1807 transitions. [2019-10-07 14:33:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-10-07 14:33:10,248 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:10,248 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 14:33:10,248 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:10,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:10,249 INFO L82 PathProgramCache]: Analyzing trace with hash -602794650, now seen corresponding path program 1 times [2019-10-07 14:33:10,249 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:10,250 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:10,252 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:10,252 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:10,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:10,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:10,509 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 14:33:10,511 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:10,511 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:10,512 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 14:33:10,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:33:10,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:33:10,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 14:33:10,513 INFO L87 Difference]: Start difference. First operand 1229 states and 1807 transitions. Second operand 7 states. [2019-10-07 14:33:13,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:13,784 INFO L93 Difference]: Finished difference Result 2181 states and 3218 transitions. [2019-10-07 14:33:13,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:33:13,786 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 110 [2019-10-07 14:33:13,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:13,799 INFO L225 Difference]: With dead ends: 2181 [2019-10-07 14:33:13,800 INFO L226 Difference]: Without dead ends: 1299 [2019-10-07 14:33:13,805 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 14:33:13,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2019-10-07 14:33:13,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1256. [2019-10-07 14:33:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2019-10-07 14:33:13,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1841 transitions. [2019-10-07 14:33:13,884 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1841 transitions. Word has length 110 [2019-10-07 14:33:13,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:13,885 INFO L462 AbstractCegarLoop]: Abstraction has 1256 states and 1841 transitions. [2019-10-07 14:33:13,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:33:13,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1841 transitions. [2019-10-07 14:33:13,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-07 14:33:13,889 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:13,889 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:13,889 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:13,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:13,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1548781473, now seen corresponding path program 1 times [2019-10-07 14:33:13,890 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:13,890 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:13,890 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:13,890 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:14,123 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 14:33:14,124 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:14,124 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:14,124 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:33:14,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:33:14,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:33:14,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:33:14,128 INFO L87 Difference]: Start difference. First operand 1256 states and 1841 transitions. Second operand 3 states. [2019-10-07 14:33:14,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:14,307 INFO L93 Difference]: Finished difference Result 3626 states and 5399 transitions. [2019-10-07 14:33:14,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:33:14,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2019-10-07 14:33:14,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:14,328 INFO L225 Difference]: With dead ends: 3626 [2019-10-07 14:33:14,328 INFO L226 Difference]: Without dead ends: 2412 [2019-10-07 14:33:14,335 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:33:14,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2019-10-07 14:33:14,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2365. [2019-10-07 14:33:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2365 states. [2019-10-07 14:33:14,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2365 states to 2365 states and 3515 transitions. [2019-10-07 14:33:14,454 INFO L78 Accepts]: Start accepts. Automaton has 2365 states and 3515 transitions. Word has length 114 [2019-10-07 14:33:14,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:14,457 INFO L462 AbstractCegarLoop]: Abstraction has 2365 states and 3515 transitions. [2019-10-07 14:33:14,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:33:14,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2365 states and 3515 transitions. [2019-10-07 14:33:14,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:33:14,460 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:14,461 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:14,461 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:14,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:14,461 INFO L82 PathProgramCache]: Analyzing trace with hash -288829339, now seen corresponding path program 1 times [2019-10-07 14:33:14,462 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:14,462 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:14,462 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:14,462 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:14,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:14,652 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 14:33:14,653 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:14,653 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:14,654 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:33:14,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:33:14,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:33:14,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:33:14,656 INFO L87 Difference]: Start difference. First operand 2365 states and 3515 transitions. Second operand 3 states. [2019-10-07 14:33:14,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:14,872 INFO L93 Difference]: Finished difference Result 6954 states and 10490 transitions. [2019-10-07 14:33:14,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:33:14,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-07 14:33:14,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:14,910 INFO L225 Difference]: With dead ends: 6954 [2019-10-07 14:33:14,910 INFO L226 Difference]: Without dead ends: 4632 [2019-10-07 14:33:14,924 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:33:14,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2019-10-07 14:33:15,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4584. [2019-10-07 14:33:15,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4584 states. [2019-10-07 14:33:15,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4584 states to 4584 states and 6902 transitions. [2019-10-07 14:33:15,232 INFO L78 Accepts]: Start accepts. Automaton has 4584 states and 6902 transitions. Word has length 118 [2019-10-07 14:33:15,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:15,234 INFO L462 AbstractCegarLoop]: Abstraction has 4584 states and 6902 transitions. [2019-10-07 14:33:15,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:33:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 4584 states and 6902 transitions. [2019-10-07 14:33:15,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-07 14:33:15,239 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:15,240 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] [2019-10-07 14:33:15,240 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:15,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:15,241 INFO L82 PathProgramCache]: Analyzing trace with hash -365044715, now seen corresponding path program 1 times [2019-10-07 14:33:15,241 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:15,241 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:15,241 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:15,242 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:15,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:15,404 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 14:33:15,404 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:15,405 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:15,405 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:33:15,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:33:15,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:33:15,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:33:15,407 INFO L87 Difference]: Start difference. First operand 4584 states and 6902 transitions. Second operand 3 states. [2019-10-07 14:33:15,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:15,827 INFO L93 Difference]: Finished difference Result 13611 states and 20872 transitions. [2019-10-07 14:33:15,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:33:15,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2019-10-07 14:33:15,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:15,910 INFO L225 Difference]: With dead ends: 13611 [2019-10-07 14:33:15,910 INFO L226 Difference]: Without dead ends: 9072 [2019-10-07 14:33:15,937 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:33:15,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9072 states. [2019-10-07 14:33:16,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9072 to 9023. [2019-10-07 14:33:16,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9023 states. [2019-10-07 14:33:16,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9023 states to 9023 states and 13810 transitions. [2019-10-07 14:33:16,426 INFO L78 Accepts]: Start accepts. Automaton has 9023 states and 13810 transitions. Word has length 119 [2019-10-07 14:33:16,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:16,428 INFO L462 AbstractCegarLoop]: Abstraction has 9023 states and 13810 transitions. [2019-10-07 14:33:16,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:33:16,429 INFO L276 IsEmpty]: Start isEmpty. Operand 9023 states and 13810 transitions. [2019-10-07 14:33:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-07 14:33:16,432 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:16,432 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:16,433 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:16,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:16,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1945509337, now seen corresponding path program 1 times [2019-10-07 14:33:16,433 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:16,433 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:16,434 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:16,434 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:16,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:16,611 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 14:33:16,611 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:16,611 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:16,612 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:33:16,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:33:16,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:33:16,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:33:16,613 INFO L87 Difference]: Start difference. First operand 9023 states and 13810 transitions. Second operand 3 states. [2019-10-07 14:33:17,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:17,325 INFO L93 Difference]: Finished difference Result 26926 states and 42329 transitions. [2019-10-07 14:33:17,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:33:17,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2019-10-07 14:33:17,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:17,463 INFO L225 Difference]: With dead ends: 26926 [2019-10-07 14:33:17,463 INFO L226 Difference]: Without dead ends: 17952 [2019-10-07 14:33:17,509 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:33:17,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17952 states. [2019-10-07 14:33:19,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17952 to 17902. [2019-10-07 14:33:19,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17902 states. [2019-10-07 14:33:19,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17902 states to 17902 states and 28102 transitions. [2019-10-07 14:33:19,278 INFO L78 Accepts]: Start accepts. Automaton has 17902 states and 28102 transitions. Word has length 117 [2019-10-07 14:33:19,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:19,278 INFO L462 AbstractCegarLoop]: Abstraction has 17902 states and 28102 transitions. [2019-10-07 14:33:19,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:33:19,279 INFO L276 IsEmpty]: Start isEmpty. Operand 17902 states and 28102 transitions. [2019-10-07 14:33:19,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-07 14:33:19,284 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:19,284 INFO L385 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:19,285 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:19,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:19,285 INFO L82 PathProgramCache]: Analyzing trace with hash 179985317, now seen corresponding path program 1 times [2019-10-07 14:33:19,285 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:19,285 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:19,286 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:19,286 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:19,431 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 14:33:19,431 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:19,431 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:33:19,431 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:33:19,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:33:19,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:33:19,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:33:19,433 INFO L87 Difference]: Start difference. First operand 17902 states and 28102 transitions. Second operand 3 states. [2019-10-07 14:33:19,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:19,886 INFO L93 Difference]: Finished difference Result 19063 states and 30094 transitions. [2019-10-07 14:33:19,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:33:19,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2019-10-07 14:33:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:20,018 INFO L225 Difference]: With dead ends: 19063 [2019-10-07 14:33:20,019 INFO L226 Difference]: Without dead ends: 19050 [2019-10-07 14:33:20,034 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:33:20,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19050 states. [2019-10-07 14:33:21,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19050 to 19005. [2019-10-07 14:33:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19005 states. [2019-10-07 14:33:21,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19005 states to 19005 states and 30007 transitions. [2019-10-07 14:33:21,305 INFO L78 Accepts]: Start accepts. Automaton has 19005 states and 30007 transitions. Word has length 118 [2019-10-07 14:33:21,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:21,306 INFO L462 AbstractCegarLoop]: Abstraction has 19005 states and 30007 transitions. [2019-10-07 14:33:21,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:33:21,306 INFO L276 IsEmpty]: Start isEmpty. Operand 19005 states and 30007 transitions. [2019-10-07 14:33:21,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-07 14:33:21,313 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:21,314 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:21,314 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:21,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:21,314 INFO L82 PathProgramCache]: Analyzing trace with hash -706572927, now seen corresponding path program 1 times [2019-10-07 14:33:21,315 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:21,315 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:21,315 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:21,315 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:21,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:21,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:21,538 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 14:33:21,538 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:21,538 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:21,538 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 14:33:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:22,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 3397 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:33:22,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:22,458 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 14:33:22,458 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:22,961 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 14:33:22,961 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:33:22,962 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7, 4] total 10 [2019-10-07 14:33:22,962 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:33:22,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:33:22,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 14:33:22,963 INFO L87 Difference]: Start difference. First operand 19005 states and 30007 transitions. Second operand 4 states. [2019-10-07 14:33:24,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:24,137 INFO L93 Difference]: Finished difference Result 39956 states and 64914 transitions. [2019-10-07 14:33:24,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:24,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2019-10-07 14:33:24,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:24,377 INFO L225 Difference]: With dead ends: 39956 [2019-10-07 14:33:24,378 INFO L226 Difference]: Without dead ends: 20994 [2019-10-07 14:33:24,463 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 353 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 14:33:24,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20994 states. [2019-10-07 14:33:25,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20994 to 20994. [2019-10-07 14:33:25,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20994 states. [2019-10-07 14:33:25,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20994 states to 20994 states and 33730 transitions. [2019-10-07 14:33:26,002 INFO L78 Accepts]: Start accepts. Automaton has 20994 states and 33730 transitions. Word has length 177 [2019-10-07 14:33:26,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:26,003 INFO L462 AbstractCegarLoop]: Abstraction has 20994 states and 33730 transitions. [2019-10-07 14:33:26,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:33:26,004 INFO L276 IsEmpty]: Start isEmpty. Operand 20994 states and 33730 transitions. [2019-10-07 14:33:26,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-07 14:33:26,014 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:26,014 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:26,225 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:26,225 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:26,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:26,226 INFO L82 PathProgramCache]: Analyzing trace with hash -421716635, now seen corresponding path program 1 times [2019-10-07 14:33:26,226 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:26,226 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:26,227 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:26,227 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:26,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:26,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-10-07 14:33:26,677 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:26,678 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:26,678 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 14:33:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:27,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 3402 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:33:27,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:27,829 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-07 14:33:27,829 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:28,382 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 14:33:28,383 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:33:28,384 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19, 4] total 22 [2019-10-07 14:33:28,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:33:28,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:33:28,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:33:28,386 INFO L87 Difference]: Start difference. First operand 20994 states and 33730 transitions. Second operand 4 states. [2019-10-07 14:33:29,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:29,308 INFO L93 Difference]: Finished difference Result 43934 states and 72309 transitions. [2019-10-07 14:33:29,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:29,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 182 [2019-10-07 14:33:29,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:29,511 INFO L225 Difference]: With dead ends: 43934 [2019-10-07 14:33:29,511 INFO L226 Difference]: Without dead ends: 22983 [2019-10-07 14:33:29,573 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 371 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:33:29,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22983 states. [2019-10-07 14:33:31,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22983 to 22983. [2019-10-07 14:33:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22983 states. [2019-10-07 14:33:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22983 states to 22983 states and 37453 transitions. [2019-10-07 14:33:31,904 INFO L78 Accepts]: Start accepts. Automaton has 22983 states and 37453 transitions. Word has length 182 [2019-10-07 14:33:31,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:31,905 INFO L462 AbstractCegarLoop]: Abstraction has 22983 states and 37453 transitions. [2019-10-07 14:33:31,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:33:31,905 INFO L276 IsEmpty]: Start isEmpty. Operand 22983 states and 37453 transitions. [2019-10-07 14:33:31,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-10-07 14:33:31,911 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:31,911 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:32,118 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:32,119 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:32,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:32,119 INFO L82 PathProgramCache]: Analyzing trace with hash 80215445, now seen corresponding path program 1 times [2019-10-07 14:33:32,120 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:32,120 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:32,120 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:32,121 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:32,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:32,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2019-10-07 14:33:32,584 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:32,584 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:32,585 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 14:33:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:33,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 3406 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:33:33,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-07 14:33:33,279 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:33,679 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 14:33:33,680 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:33:33,680 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19, 4] total 22 [2019-10-07 14:33:33,682 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:33:33,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:33:33,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:33:33,683 INFO L87 Difference]: Start difference. First operand 22983 states and 37453 transitions. Second operand 4 states. [2019-10-07 14:33:34,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:34,658 INFO L93 Difference]: Finished difference Result 47912 states and 79704 transitions. [2019-10-07 14:33:34,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:34,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2019-10-07 14:33:34,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:34,774 INFO L225 Difference]: With dead ends: 47912 [2019-10-07 14:33:34,775 INFO L226 Difference]: Without dead ends: 24972 [2019-10-07 14:33:34,828 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 379 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:33:34,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24972 states. [2019-10-07 14:33:35,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24972 to 24972. [2019-10-07 14:33:35,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24972 states. [2019-10-07 14:33:35,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24972 states to 24972 states and 41176 transitions. [2019-10-07 14:33:35,801 INFO L78 Accepts]: Start accepts. Automaton has 24972 states and 41176 transitions. Word has length 186 [2019-10-07 14:33:35,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:35,802 INFO L462 AbstractCegarLoop]: Abstraction has 24972 states and 41176 transitions. [2019-10-07 14:33:35,802 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:33:35,802 INFO L276 IsEmpty]: Start isEmpty. Operand 24972 states and 41176 transitions. [2019-10-07 14:33:35,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-07 14:33:35,809 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:35,809 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:36,017 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:36,018 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:36,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:36,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1349253663, now seen corresponding path program 1 times [2019-10-07 14:33:36,019 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:36,019 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:36,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:36,020 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:36,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:36,619 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2019-10-07 14:33:36,619 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:36,619 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:36,620 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 14:33:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:37,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 3409 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-07 14:33:37,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:37,878 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 14:33:37,879 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:38,319 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 14:33:38,319 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:33:38,319 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19, 4] total 22 [2019-10-07 14:33:38,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 14:33:38,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 14:33:38,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:33:38,321 INFO L87 Difference]: Start difference. First operand 24972 states and 41176 transitions. Second operand 4 states. [2019-10-07 14:33:39,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:39,140 INFO L93 Difference]: Finished difference Result 51890 states and 87099 transitions. [2019-10-07 14:33:39,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:33:39,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 189 [2019-10-07 14:33:39,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:39,263 INFO L225 Difference]: With dead ends: 51890 [2019-10-07 14:33:39,264 INFO L226 Difference]: Without dead ends: 26961 [2019-10-07 14:33:39,322 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 385 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:33:39,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26961 states. [2019-10-07 14:33:40,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26961 to 26961. [2019-10-07 14:33:40,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26961 states. [2019-10-07 14:33:40,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26961 states to 26961 states and 44899 transitions. [2019-10-07 14:33:40,544 INFO L78 Accepts]: Start accepts. Automaton has 26961 states and 44899 transitions. Word has length 189 [2019-10-07 14:33:40,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:40,544 INFO L462 AbstractCegarLoop]: Abstraction has 26961 states and 44899 transitions. [2019-10-07 14:33:40,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 14:33:40,545 INFO L276 IsEmpty]: Start isEmpty. Operand 26961 states and 44899 transitions. [2019-10-07 14:33:40,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-07 14:33:40,552 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:40,552 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:40,760 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:40,761 INFO L410 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:40,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:40,761 INFO L82 PathProgramCache]: Analyzing trace with hash 295939343, now seen corresponding path program 1 times [2019-10-07 14:33:40,762 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:40,762 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:40,762 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:40,762 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:40,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:33:41,193 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:41,194 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:41,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:41,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 3405 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-07 14:33:42,006 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:42,131 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:33:42,132 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:42,780 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:33:42,780 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:33:42,781 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 7] imperfect sequences [19] total 27 [2019-10-07 14:33:42,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 14:33:42,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 14:33:42,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:33:42,783 INFO L87 Difference]: Start difference. First operand 26961 states and 44899 transitions. Second operand 10 states. [2019-10-07 14:33:45,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:33:45,488 INFO L93 Difference]: Finished difference Result 66623 states and 110600 transitions. [2019-10-07 14:33:45,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 14:33:45,489 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 191 [2019-10-07 14:33:45,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:33:45,688 INFO L225 Difference]: With dead ends: 66623 [2019-10-07 14:33:45,688 INFO L226 Difference]: Without dead ends: 39720 [2019-10-07 14:33:45,766 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 381 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=624, Unknown=0, NotChecked=0, Total=702 [2019-10-07 14:33:45,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39720 states. [2019-10-07 14:33:47,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39720 to 39280. [2019-10-07 14:33:47,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39280 states. [2019-10-07 14:33:47,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39280 states to 39280 states and 64940 transitions. [2019-10-07 14:33:47,271 INFO L78 Accepts]: Start accepts. Automaton has 39280 states and 64940 transitions. Word has length 191 [2019-10-07 14:33:47,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:33:47,272 INFO L462 AbstractCegarLoop]: Abstraction has 39280 states and 64940 transitions. [2019-10-07 14:33:47,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 14:33:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 39280 states and 64940 transitions. [2019-10-07 14:33:47,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-07 14:33:47,285 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:33:47,286 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:33:47,798 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:47,799 INFO L410 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:33:47,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:33:47,799 INFO L82 PathProgramCache]: Analyzing trace with hash 2059090775, now seen corresponding path program 1 times [2019-10-07 14:33:47,800 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:33:47,800 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:47,800 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:47,800 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:33:47,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:33:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:48,233 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:33:48,233 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:33:48,233 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:33:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:33:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:33:49,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 3410 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-07 14:33:49,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:33:49,288 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:33:49,289 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:33:50,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:50,217 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:50,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:50,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:50,330 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:50,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:50,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:50,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:50,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:33:50,559 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-10-07 14:33:50,560 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:33:50,560 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [19] total 31 [2019-10-07 14:33:50,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-07 14:33:50,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-07 14:33:50,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=837, Unknown=0, NotChecked=0, Total=930 [2019-10-07 14:33:50,562 INFO L87 Difference]: Start difference. First operand 39280 states and 64940 transitions. Second operand 14 states. [2019-10-07 14:34:00,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:34:00,552 INFO L93 Difference]: Finished difference Result 97795 states and 166007 transitions. [2019-10-07 14:34:00,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-07 14:34:00,553 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 194 [2019-10-07 14:34:00,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:34:00,841 INFO L225 Difference]: With dead ends: 97795 [2019-10-07 14:34:00,841 INFO L226 Difference]: Without dead ends: 58561 [2019-10-07 14:34:00,932 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 383 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=1531, Unknown=0, NotChecked=0, Total=1722 [2019-10-07 14:34:00,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58561 states. [2019-10-07 14:34:02,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58561 to 54657. [2019-10-07 14:34:02,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54657 states. [2019-10-07 14:34:02,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54657 states to 54657 states and 88992 transitions. [2019-10-07 14:34:02,696 INFO L78 Accepts]: Start accepts. Automaton has 54657 states and 88992 transitions. Word has length 194 [2019-10-07 14:34:02,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:34:02,697 INFO L462 AbstractCegarLoop]: Abstraction has 54657 states and 88992 transitions. [2019-10-07 14:34:02,697 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-07 14:34:02,697 INFO L276 IsEmpty]: Start isEmpty. Operand 54657 states and 88992 transitions. [2019-10-07 14:34:02,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-07 14:34:02,706 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:34:02,706 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:34:02,914 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:34:02,914 INFO L410 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:34:02,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:34:02,915 INFO L82 PathProgramCache]: Analyzing trace with hash 2085139598, now seen corresponding path program 1 times [2019-10-07 14:34:02,915 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:34:02,915 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:02,916 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:02,916 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:34:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:03,312 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:34:03,312 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:03,312 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:34:03,312 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 14:34:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:04,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 3411 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-07 14:34:04,075 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:34:04,166 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 14:34:04,166 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:34:06,043 WARN L191 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 1 [2019-10-07 14:34:06,127 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 14:34:06,127 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:34:06,127 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [19] total 26 [2019-10-07 14:34:06,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:34:06,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:34:06,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2019-10-07 14:34:06,129 INFO L87 Difference]: Start difference. First operand 54657 states and 88992 transitions. Second operand 9 states. [2019-10-07 14:34:08,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:34:08,270 INFO L93 Difference]: Finished difference Result 55455 states and 91282 transitions. [2019-10-07 14:34:08,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 14:34:08,270 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2019-10-07 14:34:08,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:34:08,501 INFO L225 Difference]: With dead ends: 55455 [2019-10-07 14:34:08,501 INFO L226 Difference]: Without dead ends: 55337 [2019-10-07 14:34:08,530 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 389 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2019-10-07 14:34:08,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55337 states. [2019-10-07 14:34:10,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55337 to 54819. [2019-10-07 14:34:10,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54819 states. [2019-10-07 14:34:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54819 states to 54819 states and 89276 transitions. [2019-10-07 14:34:10,223 INFO L78 Accepts]: Start accepts. Automaton has 54819 states and 89276 transitions. Word has length 194 [2019-10-07 14:34:10,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:34:10,224 INFO L462 AbstractCegarLoop]: Abstraction has 54819 states and 89276 transitions. [2019-10-07 14:34:10,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:34:10,224 INFO L276 IsEmpty]: Start isEmpty. Operand 54819 states and 89276 transitions. [2019-10-07 14:34:10,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-07 14:34:10,233 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:34:10,233 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:34:10,445 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:34:10,445 INFO L410 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:34:10,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:34:10,446 INFO L82 PathProgramCache]: Analyzing trace with hash -2090124291, now seen corresponding path program 1 times [2019-10-07 14:34:10,446 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:34:10,446 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:10,446 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:10,446 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:34:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:10,882 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-10-07 14:34:10,882 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:10,883 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:34:10,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:34:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:11,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 3426 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-07 14:34:11,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:34:11,735 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 14:34:11,735 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:34:12,265 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 14:34:12,266 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:34:12,266 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [19] total 22 [2019-10-07 14:34:12,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 14:34:12,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 14:34:12,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:34:12,269 INFO L87 Difference]: Start difference. First operand 54819 states and 89276 transitions. Second operand 5 states. [2019-10-07 14:34:13,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:34:13,561 INFO L93 Difference]: Finished difference Result 54937 states and 89408 transitions. [2019-10-07 14:34:13,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:34:13,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2019-10-07 14:34:13,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:34:13,716 INFO L225 Difference]: With dead ends: 54937 [2019-10-07 14:34:13,717 INFO L226 Difference]: Without dead ends: 54819 [2019-10-07 14:34:13,738 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 403 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2019-10-07 14:34:13,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54819 states. [2019-10-07 14:34:15,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54819 to 54819. [2019-10-07 14:34:15,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54819 states. [2019-10-07 14:34:15,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54819 states to 54819 states and 89134 transitions. [2019-10-07 14:34:15,175 INFO L78 Accepts]: Start accepts. Automaton has 54819 states and 89134 transitions. Word has length 199 [2019-10-07 14:34:15,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:34:15,176 INFO L462 AbstractCegarLoop]: Abstraction has 54819 states and 89134 transitions. [2019-10-07 14:34:15,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 14:34:15,176 INFO L276 IsEmpty]: Start isEmpty. Operand 54819 states and 89134 transitions. [2019-10-07 14:34:15,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2019-10-07 14:34:15,183 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:34:15,183 INFO L385 BasicCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 14:34:15,391 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:34:15,391 INFO L410 AbstractCegarLoop]: === Iteration 20 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:34:15,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:34:15,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1742101453, now seen corresponding path program 1 times [2019-10-07 14:34:15,392 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:34:15,393 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:15,393 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:15,393 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:34:15,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:34:15,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2019-10-07 14:34:15,755 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:34:15,755 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:34:15,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:34:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:34:18,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 3469 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-07 14:34:18,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:34:18,880 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 14:34:18,881 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:34:19,598 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:34:19,601 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:34:19,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:34:19,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:34:19,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:34:19,626 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:34:19,631 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:34:19,635 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:34:19,772 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 14:34:19,772 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2019-10-07 14:34:19,814 INFO L162 IcfgInterpreter]: Started Sifa with 180 locations of interest [2019-10-07 14:34:19,814 INFO L169 IcfgInterpreter]: Building call graph [2019-10-07 14:34:19,824 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-07 14:34:19,835 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-07 14:34:19,836 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-07 14:34:58,693 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 762 [2019-10-07 14:35:03,465 WARN L191 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 405 DAG size of output: 327 [2019-10-07 14:35:03,889 WARN L191 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:35:04,268 WARN L191 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:35:04,508 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 848 [2019-10-07 14:35:05,126 WARN L191 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:35:05,609 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:35:06,084 WARN L191 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:35:06,619 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:35:07,625 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 1036 [2019-10-07 14:35:08,111 WARN L191 SmtUtils]: Spent 482.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:35:08,636 WARN L191 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:35:09,099 WARN L191 SmtUtils]: Spent 460.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:35:09,570 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:35:10,086 WARN L191 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 1036 [2019-10-07 14:35:10,104 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 388 for LOIs [2019-10-07 14:35:10,436 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:35:10,592 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 731 [2019-10-07 14:35:11,139 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification that was a NOOP. DAG size: 919 [2019-10-07 14:35:11,141 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1084 for LOIs [2019-10-07 14:35:11,581 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:12,026 WARN L191 SmtUtils]: Spent 442.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:12,149 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:12,900 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:13,355 WARN L191 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:13,804 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:13,931 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:14,679 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:15,144 WARN L191 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:15,580 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:15,704 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:16,455 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:17,395 WARN L191 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1084 [2019-10-07 14:35:17,829 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:17,965 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:18,704 WARN L191 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:19,148 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:19,580 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:19,709 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:20,450 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:20,881 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:21,315 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:21,432 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:22,176 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:22,623 WARN L191 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:23,055 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:23,175 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:23,912 WARN L191 SmtUtils]: Spent 736.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:24,343 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:24,776 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:24,893 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:25,645 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:26,079 WARN L191 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:26,511 WARN L191 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:26,631 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:27,388 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:27,827 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:28,280 WARN L191 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:28,399 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:29,158 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:29,596 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:30,036 WARN L191 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:30,156 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:30,901 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:31,355 WARN L191 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:31,793 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:31,912 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:32,673 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:33,114 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:33,552 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 1084 [2019-10-07 14:35:33,671 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:34,437 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:36,147 WARN L191 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:36,904 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:37,054 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:37,813 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:39,196 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:35:39,947 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:40,074 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:40,827 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:41,594 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:42,341 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:42,459 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:35:43,221 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:35:45,055 WARN L191 SmtUtils]: Spent 1.80 s on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:45,896 WARN L191 SmtUtils]: Spent 836.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:46,023 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:35:46,784 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:47,620 WARN L191 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:48,411 WARN L191 SmtUtils]: Spent 787.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:48,543 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:35:49,301 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:50,644 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:35:51,419 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:51,541 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:35:52,300 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:53,074 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:53,832 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:35:53,974 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:35:54,738 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:55,500 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:56,255 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:56,382 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:35:57,151 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:35:57,946 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:58,708 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:35:58,835 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:35:59,596 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:36:00,950 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:36:01,721 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:01,850 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:02,617 WARN L191 SmtUtils]: Spent 765.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:36:03,388 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:04,147 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:04,269 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:05,036 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:36:06,420 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:36:07,170 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:07,299 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:36:08,050 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:09,405 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:36:10,156 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:10,281 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:36:11,047 WARN L191 SmtUtils]: Spent 764.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:11,809 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:12,563 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:12,721 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:36:13,475 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:14,272 WARN L191 SmtUtils]: Spent 767.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:15,033 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:15,162 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:15,925 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:17,272 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:36:18,025 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:36:18,150 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:18,922 WARN L191 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:20,256 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:36:21,005 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:36:21,124 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:21,882 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:23,226 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:36:24,001 WARN L191 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:36:24,129 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:24,892 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:26,251 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1264 DAG size of output: 1260 [2019-10-07 14:36:27,002 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:27,129 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:27,891 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:36:29,277 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:36:30,025 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:30,149 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:36:30,908 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:32,272 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:36:33,022 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:33,146 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:36:33,911 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:34,675 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:35,440 WARN L191 SmtUtils]: Spent 761.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:35,561 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:36:36,316 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:37,696 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:36:38,452 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:38,581 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:36:39,342 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:40,688 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:36:41,439 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:41,565 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:36:42,316 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:43,066 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:43,820 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:43,940 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:36:44,692 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:46,054 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:36:46,814 WARN L191 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:36:46,941 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:47,704 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:49,056 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:36:49,820 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:49,950 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:50,706 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:52,042 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:36:52,794 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:36:52,914 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:53,675 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:55,018 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1258 [2019-10-07 14:36:55,766 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1258 [2019-10-07 14:36:55,894 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:36:56,645 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:36:57,999 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:36:58,747 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:36:58,871 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:36:59,625 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:00,984 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:37:01,738 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:01,861 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:37:02,614 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:03,364 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:04,111 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:04,229 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:37:04,981 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:06,353 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:37:07,105 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:07,246 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:07,999 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:09,357 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:37:10,117 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:10,241 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:10,992 WARN L191 SmtUtils]: Spent 748.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:11,737 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:12,483 WARN L191 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:12,603 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:13,350 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:14,627 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:37:15,387 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:15,527 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:16,272 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:17,612 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:37:18,373 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:37:18,503 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:19,256 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:37:20,653 WARN L191 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:37:21,410 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:37:21,535 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:22,286 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:37:23,637 WARN L191 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:37:24,394 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:37:24,676 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:25,480 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:37:26,880 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:37:27,624 WARN L191 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:27,747 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:37:28,488 WARN L191 SmtUtils]: Spent 739.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:29,824 WARN L191 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:37:30,573 WARN L191 SmtUtils]: Spent 746.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:30,696 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:37:31,448 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:32,196 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:32,942 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:33,061 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:37:33,807 WARN L191 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:35,181 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:37:35,944 WARN L191 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:36,069 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:36,820 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:38,382 WARN L191 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:37:39,140 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:39,269 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:40,026 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:40,792 WARN L191 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:41,550 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:41,669 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:42,428 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:43,704 WARN L191 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 1267 DAG size of output: 1260 [2019-10-07 14:37:44,462 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:44,590 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:45,346 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:37:46,698 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1269 DAG size of output: 1262 [2019-10-07 14:37:47,459 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:37:47,596 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:37:48,357 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 1262 [2019-10-07 14:37:49,715 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:37:50,476 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:50,610 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:37:51,361 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:52,697 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:37:53,454 WARN L191 SmtUtils]: Spent 755.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:53,585 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:37:54,339 WARN L191 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:55,692 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:37:56,438 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:56,577 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:37:57,334 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:58,671 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 1258 DAG size of output: 1256 [2019-10-07 14:37:59,422 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:37:59,546 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:38:00,294 WARN L191 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:38:01,047 WARN L191 SmtUtils]: Spent 750.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:38:01,807 WARN L191 SmtUtils]: Spent 757.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:38:01,925 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:38:02,677 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:38:04,075 WARN L191 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:04,827 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:04,952 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:38:05,705 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:07,066 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 1262 DAG size of output: 1260 [2019-10-07 14:38:07,821 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:07,962 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 455 [2019-10-07 14:38:08,715 WARN L191 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 1260 [2019-10-07 14:38:08,722 INFO L199 IcfgInterpreter]: Interpreting procedure runTest with input of size 1110 for LOIs [2019-10-07 14:38:09,196 WARN L191 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:38:09,692 WARN L191 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 1110 [2019-10-07 14:38:09,812 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:38:10,565 WARN L191 SmtUtils]: Spent 751.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:38:11,096 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:38:11,596 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:38:11,716 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:38:12,463 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:38:13,328 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 1258 DAG size of output: 1120 [2019-10-07 14:38:13,824 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:38:13,952 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:38:14,702 WARN L191 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:38:15,213 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:38:15,711 WARN L191 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:38:15,831 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:38:16,587 WARN L191 SmtUtils]: Spent 754.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:38:17,083 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:38:17,583 WARN L191 SmtUtils]: Spent 497.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:38:17,701 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:38:18,448 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:38:18,945 WARN L191 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:38:19,440 WARN L191 SmtUtils]: Spent 493.00 ms on a formula simplification that was a NOOP. DAG size: 1120 [2019-10-07 14:38:19,559 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 452 [2019-10-07 14:38:20,304 WARN L191 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 1256 [2019-10-07 14:38:20,568 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:38:20,569 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 14:38:20,575 INFO L168 Benchmark]: Toolchain (without parser) took 326610.88 ms. Allocated memory was 146.3 MB in the beginning and 3.4 GB in the end (delta: 3.2 GB). Free memory was 100.2 MB in the beginning and 564.0 MB in the end (delta: -463.7 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:38:20,576 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-10-07 14:38:20,576 INFO L168 Benchmark]: CACSL2BoogieTranslator took 973.57 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.0 MB in the beginning and 146.2 MB in the end (delta: -46.2 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:38:20,576 INFO L168 Benchmark]: Boogie Preprocessor took 215.22 ms. Allocated memory is still 205.0 MB. Free memory was 146.2 MB in the beginning and 136.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-07 14:38:20,576 INFO L168 Benchmark]: RCFGBuilder took 4924.03 ms. Allocated memory was 205.0 MB in the beginning and 292.0 MB in the end (delta: 87.0 MB). Free memory was 136.5 MB in the beginning and 185.9 MB in the end (delta: -49.4 MB). Peak memory consumption was 142.9 MB. Max. memory is 7.1 GB. [2019-10-07 14:38:20,577 INFO L168 Benchmark]: TraceAbstraction took 320493.90 ms. Allocated memory was 292.0 MB in the beginning and 3.4 GB in the end (delta: 3.1 GB). Free memory was 185.9 MB in the beginning and 564.0 MB in the end (delta: -378.0 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2019-10-07 14:38:20,578 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 146.3 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 973.57 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.0 MB in the beginning and 146.2 MB in the end (delta: -46.2 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 215.22 ms. Allocated memory is still 205.0 MB. Free memory was 146.2 MB in the beginning and 136.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4924.03 ms. Allocated memory was 205.0 MB in the beginning and 292.0 MB in the end (delta: 87.0 MB). Free memory was 136.5 MB in the beginning and 185.9 MB in the end (delta: -49.4 MB). Peak memory consumption was 142.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 320493.90 ms. Allocated memory was 292.0 MB in the beginning and 3.4 GB in the end (delta: 3.1 GB). Free memory was 185.9 MB in the beginning and 564.0 MB in the end (delta: -378.0 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.IllegalArgumentException: Tried to insert element unknown in custom order: CallReturnSummary for callee initPersonOnFloor: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...