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_spec1_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 14:09:25,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 14:09:26,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 14:09:26,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 14:09:26,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 14:09:26,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 14:09:26,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 14:09:26,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 14:09:26,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 14:09:26,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 14:09:26,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 14:09:26,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 14:09:26,028 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 14:09:26,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 14:09:26,030 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 14:09:26,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 14:09:26,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 14:09:26,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 14:09:26,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 14:09:26,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 14:09:26,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 14:09:26,048 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 14:09:26,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 14:09:26,052 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 14:09:26,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 14:09:26,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 14:09:26,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 14:09:26,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 14:09:26,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 14:09:26,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 14:09:26,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 14:09:26,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 14:09:26,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 14:09:26,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 14:09:26,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 14:09:26,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 14:09:26,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 14:09:26,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 14:09:26,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 14:09:26,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 14:09:26,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 14:09:26,073 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 14:09:26,087 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 14:09:26,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 14:09:26,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 14:09:26,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 14:09:26,089 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 14:09:26,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 14:09:26,090 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 14:09:26,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 14:09:26,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 14:09:26,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 14:09:26,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 14:09:26,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 14:09:26,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 14:09:26,091 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 14:09:26,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 14:09:26,091 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 14:09:26,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 14:09:26,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 14:09:26,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 14:09:26,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 14:09:26,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 14:09:26,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 14:09:26,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 14:09:26,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 14:09:26,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 14:09:26,094 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 14:09:26,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 14:09:26,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 14:09:26,094 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 14:09:26,408 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 14:09:26,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 14:09:26,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 14:09:26,431 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 14:09:26,431 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 14:09:26,432 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product28.cil.c [2019-10-07 14:09:26,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efec3286a/af84149a1e9d475fb2f6bd9da6c0bdfe/FLAG740491769 [2019-10-07 14:09:27,148 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 14:09:27,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product28.cil.c [2019-10-07 14:09:27,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efec3286a/af84149a1e9d475fb2f6bd9da6c0bdfe/FLAG740491769 [2019-10-07 14:09:27,383 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efec3286a/af84149a1e9d475fb2f6bd9da6c0bdfe [2019-10-07 14:09:27,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 14:09:27,396 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 14:09:27,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 14:09:27,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 14:09:27,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 14:09:27,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:09:27" (1/1) ... [2019-10-07 14:09:27,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690905fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:27, skipping insertion in model container [2019-10-07 14:09:27,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 02:09:27" (1/1) ... [2019-10-07 14:09:27,408 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 14:09:27,481 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 14:09:28,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:09:28,349 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 14:09:28,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 14:09:28,553 INFO L192 MainTranslator]: Completed translation [2019-10-07 14:09:28,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:28 WrapperNode [2019-10-07 14:09:28,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 14:09:28,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 14:09:28,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 14:09:28,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 14:09:28,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:28" (1/1) ... [2019-10-07 14:09:28,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:28" (1/1) ... [2019-10-07 14:09:28,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:28" (1/1) ... [2019-10-07 14:09:28,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:28" (1/1) ... [2019-10-07 14:09:28,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:28" (1/1) ... [2019-10-07 14:09:28,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:28" (1/1) ... [2019-10-07 14:09:28,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:28" (1/1) ... [2019-10-07 14:09:28,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 14:09:28,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 14:09:28,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 14:09:28,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 14:09:28,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:28" (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 14:09:28,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 14:09:28,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 14:09:28,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 14:09:28,880 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-07 14:09:28,880 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-07 14:09:28,881 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-07 14:09:28,881 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-07 14:09:28,882 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-07 14:09:28,882 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-07 14:09:28,882 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-07 14:09:28,882 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-07 14:09:28,884 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 14:09:28,884 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-07 14:09:28,884 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-07 14:09:28,884 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-07 14:09:28,885 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 14:09:28,887 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-07 14:09:28,888 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 14:09:28,888 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 14:09:28,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 14:09:28,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-07 14:09:28,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-07 14:09:28,889 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-07 14:09:28,889 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 14:09:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 14:09:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 14:09:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 14:09:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:09:28,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:09:28,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:09:28,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:09:28,891 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-07 14:09:28,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-07 14:09:28,891 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-07 14:09:28,892 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-07 14:09:28,892 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-07 14:09:28,892 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-07 14:09:28,893 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-07 14:09:28,893 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-07 14:09:28,893 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-07 14:09:28,893 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-07 14:09:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-07 14:09:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-07 14:09:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-07 14:09:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-07 14:09:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-07 14:09:28,894 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-07 14:09:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-07 14:09:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-07 14:09:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-07 14:09:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-07 14:09:28,895 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-07 14:09:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-07 14:09:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-07 14:09:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-07 14:09:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-07 14:09:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-07 14:09:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-07 14:09:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:09:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-07 14:09:28,898 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-07 14:09:28,898 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-07 14:09:28,898 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:09:28,898 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-07 14:09:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-07 14:09:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-07 14:09:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2019-10-07 14:09:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 14:09:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2019-10-07 14:09:28,899 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-07 14:09:28,900 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-07 14:09:28,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-07 14:09:28,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-07 14:09:28,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 14:09:28,901 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 14:09:28,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 14:09:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 14:09:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 14:09:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 14:09:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 14:09:28,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 14:09:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 14:09:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 14:09:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 14:09:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-07 14:09:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-07 14:09:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-07 14:09:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-07 14:09:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-07 14:09:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-07 14:09:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-07 14:09:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-07 14:09:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-07 14:09:28,907 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 14:09:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-07 14:09:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-07 14:09:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-07 14:09:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 14:09:28,908 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-07 14:09:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-07 14:09:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-07 14:09:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-07 14:09:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-07 14:09:28,909 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 14:09:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-07 14:09:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 14:09:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-07 14:09:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-10-07 14:09:28,910 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 14:09:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 14:09:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 14:09:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 14:09:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 14:09:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 14:09:28,911 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-07 14:09:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-07 14:09:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 14:09:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 14:09:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-07 14:09:28,912 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-07 14:09:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-10-07 14:09:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-10-07 14:09:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-07 14:09:28,913 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-07 14:09:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-07 14:09:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-07 14:09:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-07 14:09:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-07 14:09:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-07 14:09:28,915 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-07 14:09:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-07 14:09:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-07 14:09:28,916 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 14:09:28,917 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-07 14:09:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-07 14:09:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-07 14:09:28,920 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-07 14:09:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-07 14:09:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-07 14:09:28,921 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-07 14:09:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-07 14:09:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-07 14:09:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-07 14:09:28,922 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-07 14:09:28,930 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-07 14:09:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-07 14:09:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-07 14:09:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-07 14:09:28,931 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-07 14:09:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-07 14:09:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-07 14:09:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-07 14:09:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-07 14:09:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-07 14:09:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2019-10-07 14:09:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2019-10-07 14:09:28,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 14:09:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-07 14:09:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 14:09:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 14:09:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 14:09:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 14:09:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 14:09:28,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 14:09:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 14:09:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 14:09:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 14:09:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 14:09:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 14:09:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 14:09:28,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 14:09:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 14:09:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 14:09:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 14:09:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 14:09:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 14:09:28,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 14:09:33,880 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 14:09:33,880 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-07 14:09:33,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:09:33 BoogieIcfgContainer [2019-10-07 14:09:33,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 14:09:33,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 14:09:33,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 14:09:33,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 14:09:33,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 02:09:27" (1/3) ... [2019-10-07 14:09:33,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3387b32c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:09:33, skipping insertion in model container [2019-10-07 14:09:33,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 02:09:28" (2/3) ... [2019-10-07 14:09:33,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3387b32c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 02:09:33, skipping insertion in model container [2019-10-07 14:09:33,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 02:09:33" (3/3) ... [2019-10-07 14:09:33,890 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product28.cil.c [2019-10-07 14:09:33,901 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 14:09:33,911 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 14:09:33,923 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 14:09:33,955 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 14:09:33,955 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 14:09:33,955 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 14:09:33,955 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 14:09:33,956 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 14:09:33,956 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 14:09:33,956 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 14:09:33,956 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 14:09:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states. [2019-10-07 14:09:34,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-07 14:09:34,005 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:34,007 INFO L385 BasicCegarLoop]: trace histogram [2, 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] [2019-10-07 14:09:34,010 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:34,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:34,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1234480511, now seen corresponding path program 1 times [2019-10-07 14:09:34,025 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:34,026 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:34,026 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:34,026 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:34,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:09:34,718 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:34,718 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:34,719 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 14:09:34,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 14:09:34,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 14:09:34,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:09:34,740 INFO L87 Difference]: Start difference. First operand 592 states. Second operand 2 states. [2019-10-07 14:09:34,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:34,810 INFO L93 Difference]: Finished difference Result 495 states and 732 transitions. [2019-10-07 14:09:34,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 14:09:34,812 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 97 [2019-10-07 14:09:34,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:34,836 INFO L225 Difference]: With dead ends: 495 [2019-10-07 14:09:34,836 INFO L226 Difference]: Without dead ends: 461 [2019-10-07 14:09:34,841 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 14:09:34,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-10-07 14:09:34,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 461. [2019-10-07 14:09:34,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2019-10-07 14:09:34,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 681 transitions. [2019-10-07 14:09:34,991 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 681 transitions. Word has length 97 [2019-10-07 14:09:34,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:34,995 INFO L462 AbstractCegarLoop]: Abstraction has 461 states and 681 transitions. [2019-10-07 14:09:34,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 14:09:34,996 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 681 transitions. [2019-10-07 14:09:35,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-10-07 14:09:35,010 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:35,011 INFO L385 BasicCegarLoop]: trace histogram [2, 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] [2019-10-07 14:09:35,011 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:35,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:35,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1657051741, now seen corresponding path program 1 times [2019-10-07 14:09:35,013 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:35,013 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:35,013 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:35,013 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:35,548 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:09:35,549 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:35,549 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:35,549 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:09:35,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:09:35,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:09:35,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:09:35,552 INFO L87 Difference]: Start difference. First operand 461 states and 681 transitions. Second operand 9 states. [2019-10-07 14:09:41,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:41,596 INFO L93 Difference]: Finished difference Result 1244 states and 1879 transitions. [2019-10-07 14:09:41,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-07 14:09:41,599 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2019-10-07 14:09:41,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:41,617 INFO L225 Difference]: With dead ends: 1244 [2019-10-07 14:09:41,618 INFO L226 Difference]: Without dead ends: 836 [2019-10-07 14:09:41,628 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2019-10-07 14:09:41,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2019-10-07 14:09:41,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 805. [2019-10-07 14:09:41,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 805 states. [2019-10-07 14:09:41,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1178 transitions. [2019-10-07 14:09:41,709 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1178 transitions. Word has length 98 [2019-10-07 14:09:41,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:41,710 INFO L462 AbstractCegarLoop]: Abstraction has 805 states and 1178 transitions. [2019-10-07 14:09:41,710 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:09:41,710 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1178 transitions. [2019-10-07 14:09:41,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-07 14:09:41,712 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:41,713 INFO L385 BasicCegarLoop]: trace histogram [2, 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] [2019-10-07 14:09:41,713 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:41,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:41,713 INFO L82 PathProgramCache]: Analyzing trace with hash 112093531, now seen corresponding path program 1 times [2019-10-07 14:09:41,714 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:41,714 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:41,714 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:41,714 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:41,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:09:41,907 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:41,907 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:41,907 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 14:09:41,908 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 14:09:41,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 14:09:41,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 14:09:41,909 INFO L87 Difference]: Start difference. First operand 805 states and 1178 transitions. Second operand 3 states. [2019-10-07 14:09:42,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:42,034 INFO L93 Difference]: Finished difference Result 2301 states and 3417 transitions. [2019-10-07 14:09:42,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 14:09:42,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2019-10-07 14:09:42,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:42,051 INFO L225 Difference]: With dead ends: 2301 [2019-10-07 14:09:42,051 INFO L226 Difference]: Without dead ends: 1551 [2019-10-07 14:09:42,056 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 14:09:42,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1551 states. [2019-10-07 14:09:42,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1551 to 1544. [2019-10-07 14:09:42,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1544 states. [2019-10-07 14:09:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2284 transitions. [2019-10-07 14:09:42,181 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2284 transitions. Word has length 99 [2019-10-07 14:09:42,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:42,184 INFO L462 AbstractCegarLoop]: Abstraction has 1544 states and 2284 transitions. [2019-10-07 14:09:42,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 14:09:42,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2284 transitions. [2019-10-07 14:09:42,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-07 14:09:42,193 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:42,193 INFO L385 BasicCegarLoop]: trace histogram [2, 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] [2019-10-07 14:09:42,194 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:42,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:42,194 INFO L82 PathProgramCache]: Analyzing trace with hash -820461140, now seen corresponding path program 1 times [2019-10-07 14:09:42,194 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:42,194 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:42,195 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:42,195 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:42,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:42,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-07 14:09:42,504 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:42,504 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:42,504 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:09:42,505 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:09:42,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:09:42,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:09:42,506 INFO L87 Difference]: Start difference. First operand 1544 states and 2284 transitions. Second operand 6 states. [2019-10-07 14:09:45,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:45,809 INFO L93 Difference]: Finished difference Result 4893 states and 7401 transitions. [2019-10-07 14:09:45,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 14:09:45,810 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2019-10-07 14:09:45,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:45,841 INFO L225 Difference]: With dead ends: 4893 [2019-10-07 14:09:45,841 INFO L226 Difference]: Without dead ends: 3405 [2019-10-07 14:09:45,851 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:09:45,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2019-10-07 14:09:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3086. [2019-10-07 14:09:46,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3086 states. [2019-10-07 14:09:46,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 4667 transitions. [2019-10-07 14:09:46,092 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 4667 transitions. Word has length 100 [2019-10-07 14:09:46,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:46,092 INFO L462 AbstractCegarLoop]: Abstraction has 3086 states and 4667 transitions. [2019-10-07 14:09:46,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:09:46,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 4667 transitions. [2019-10-07 14:09:46,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-07 14:09:46,100 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:46,100 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:09:46,101 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:46,101 INFO L82 PathProgramCache]: Analyzing trace with hash -683602333, now seen corresponding path program 1 times [2019-10-07 14:09:46,101 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:46,101 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:46,102 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:46,102 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:46,432 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:09:46,432 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:46,433 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:46,433 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 14:09:46,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 14:09:46,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 14:09:46,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-07 14:09:46,438 INFO L87 Difference]: Start difference. First operand 3086 states and 4667 transitions. Second operand 6 states. [2019-10-07 14:09:47,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:47,289 INFO L93 Difference]: Finished difference Result 3166 states and 4795 transitions. [2019-10-07 14:09:47,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 14:09:47,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2019-10-07 14:09:47,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:47,317 INFO L225 Difference]: With dead ends: 3166 [2019-10-07 14:09:47,317 INFO L226 Difference]: Without dead ends: 3143 [2019-10-07 14:09:47,321 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-07 14:09:47,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2019-10-07 14:09:47,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 3096. [2019-10-07 14:09:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3096 states. [2019-10-07 14:09:47,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3096 states to 3096 states and 4677 transitions. [2019-10-07 14:09:47,525 INFO L78 Accepts]: Start accepts. Automaton has 3096 states and 4677 transitions. Word has length 146 [2019-10-07 14:09:47,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:47,526 INFO L462 AbstractCegarLoop]: Abstraction has 3096 states and 4677 transitions. [2019-10-07 14:09:47,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 14:09:47,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3096 states and 4677 transitions. [2019-10-07 14:09:47,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-07 14:09:47,530 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:47,531 INFO L385 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 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] [2019-10-07 14:09:47,531 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:47,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:47,532 INFO L82 PathProgramCache]: Analyzing trace with hash 290909612, now seen corresponding path program 1 times [2019-10-07 14:09:47,532 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:47,532 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:47,532 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:47,532 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-07 14:09:47,761 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:47,761 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:47,762 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 14:09:47,762 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:09:47,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:09:47,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 14:09:47,763 INFO L87 Difference]: Start difference. First operand 3096 states and 4677 transitions. Second operand 9 states. [2019-10-07 14:09:48,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:48,712 INFO L93 Difference]: Finished difference Result 3388 states and 5083 transitions. [2019-10-07 14:09:48,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:09:48,713 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2019-10-07 14:09:48,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:48,737 INFO L225 Difference]: With dead ends: 3388 [2019-10-07 14:09:48,737 INFO L226 Difference]: Without dead ends: 3365 [2019-10-07 14:09:48,741 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-07 14:09:48,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2019-10-07 14:09:48,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 3269. [2019-10-07 14:09:48,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3269 states. [2019-10-07 14:09:48,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4918 transitions. [2019-10-07 14:09:48,967 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4918 transitions. Word has length 151 [2019-10-07 14:09:48,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:48,969 INFO L462 AbstractCegarLoop]: Abstraction has 3269 states and 4918 transitions. [2019-10-07 14:09:48,969 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:09:48,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4918 transitions. [2019-10-07 14:09:48,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-07 14:09:48,974 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:48,975 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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] [2019-10-07 14:09:48,975 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:48,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:48,975 INFO L82 PathProgramCache]: Analyzing trace with hash 50603455, now seen corresponding path program 1 times [2019-10-07 14:09:48,976 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:48,976 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:48,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:48,976 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:48,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:49,314 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:09:49,314 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:49,314 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 14:09:49,315 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-07 14:09:49,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-07 14:09:49,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-07 14:09:49,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-10-07 14:09:49,316 INFO L87 Difference]: Start difference. First operand 3269 states and 4918 transitions. Second operand 12 states. [2019-10-07 14:09:57,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:09:57,241 INFO L93 Difference]: Finished difference Result 9735 states and 14649 transitions. [2019-10-07 14:09:57,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-07 14:09:57,242 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 165 [2019-10-07 14:09:57,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:09:57,296 INFO L225 Difference]: With dead ends: 9735 [2019-10-07 14:09:57,297 INFO L226 Difference]: Without dead ends: 6521 [2019-10-07 14:09:57,325 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=836, Unknown=0, NotChecked=0, Total=992 [2019-10-07 14:09:57,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6521 states. [2019-10-07 14:09:57,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6521 to 6402. [2019-10-07 14:09:57,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6402 states. [2019-10-07 14:09:57,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6402 states to 6402 states and 9515 transitions. [2019-10-07 14:09:57,784 INFO L78 Accepts]: Start accepts. Automaton has 6402 states and 9515 transitions. Word has length 165 [2019-10-07 14:09:57,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:09:57,785 INFO L462 AbstractCegarLoop]: Abstraction has 6402 states and 9515 transitions. [2019-10-07 14:09:57,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-07 14:09:57,785 INFO L276 IsEmpty]: Start isEmpty. Operand 6402 states and 9515 transitions. [2019-10-07 14:09:57,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-07 14:09:57,790 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:09:57,790 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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] [2019-10-07 14:09:57,790 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:09:57,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:09:57,791 INFO L82 PathProgramCache]: Analyzing trace with hash -702252343, now seen corresponding path program 1 times [2019-10-07 14:09:57,791 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:09:57,791 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:57,792 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:57,792 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:09:57,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:09:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:09:58,830 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:09:58,830 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:09:58,831 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 14:09:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:09:59,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 3542 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-07 14:09:59,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:09:59,746 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:09:59,746 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:10:00,455 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:10:00,456 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:10:00,456 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [25] total 32 [2019-10-07 14:10:00,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 14:10:00,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 14:10:00,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=904, Unknown=0, NotChecked=0, Total=992 [2019-10-07 14:10:00,458 INFO L87 Difference]: Start difference. First operand 6402 states and 9515 transitions. Second operand 9 states. [2019-10-07 14:10:04,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:04,638 INFO L93 Difference]: Finished difference Result 14450 states and 21463 transitions. [2019-10-07 14:10:04,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-07 14:10:04,639 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 166 [2019-10-07 14:10:04,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:04,735 INFO L225 Difference]: With dead ends: 14450 [2019-10-07 14:10:04,736 INFO L226 Difference]: Without dead ends: 8115 [2019-10-07 14:10:04,784 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=122, Invalid=1210, Unknown=0, NotChecked=0, Total=1332 [2019-10-07 14:10:04,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2019-10-07 14:10:05,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 7972. [2019-10-07 14:10:05,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7972 states. [2019-10-07 14:10:05,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7972 states to 7972 states and 11777 transitions. [2019-10-07 14:10:05,653 INFO L78 Accepts]: Start accepts. Automaton has 7972 states and 11777 transitions. Word has length 166 [2019-10-07 14:10:05,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:05,654 INFO L462 AbstractCegarLoop]: Abstraction has 7972 states and 11777 transitions. [2019-10-07 14:10:05,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 14:10:05,660 INFO L276 IsEmpty]: Start isEmpty. Operand 7972 states and 11777 transitions. [2019-10-07 14:10:05,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-10-07 14:10:05,668 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:05,669 INFO L385 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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] [2019-10-07 14:10:05,884 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:10:05,884 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:05,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:05,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1893866155, now seen corresponding path program 1 times [2019-10-07 14:10:05,887 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:05,887 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:05,888 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:05,888 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-07 14:10:07,250 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:07,250 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:10:07,251 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 14:10:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:08,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 3559 conjuncts, 13 conjunts are in the unsatisfiable core [2019-10-07 14:10:08,429 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:10:08,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:10:08,618 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:10:08,618 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:10:08,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:10:09,268 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-07 14:10:09,269 INFO L211 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-07 14:10:09,269 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [25] total 30 [2019-10-07 14:10:09,270 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 14:10:09,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 14:10:09,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2019-10-07 14:10:09,271 INFO L87 Difference]: Start difference. First operand 7972 states and 11777 transitions. Second operand 7 states. [2019-10-07 14:10:09,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:10:09,622 INFO L93 Difference]: Finished difference Result 8205 states and 12056 transitions. [2019-10-07 14:10:09,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 14:10:09,622 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2019-10-07 14:10:09,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:10:09,665 INFO L225 Difference]: With dead ends: 8205 [2019-10-07 14:10:09,665 INFO L226 Difference]: Without dead ends: 8182 [2019-10-07 14:10:09,673 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 352 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=82, Invalid=848, Unknown=0, NotChecked=0, Total=930 [2019-10-07 14:10:09,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8182 states. [2019-10-07 14:10:10,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8182 to 8148. [2019-10-07 14:10:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8148 states. [2019-10-07 14:10:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8148 states to 8148 states and 11953 transitions. [2019-10-07 14:10:10,219 INFO L78 Accepts]: Start accepts. Automaton has 8148 states and 11953 transitions. Word has length 170 [2019-10-07 14:10:10,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:10:10,222 INFO L462 AbstractCegarLoop]: Abstraction has 8148 states and 11953 transitions. [2019-10-07 14:10:10,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 14:10:10,223 INFO L276 IsEmpty]: Start isEmpty. Operand 8148 states and 11953 transitions. [2019-10-07 14:10:10,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-07 14:10:10,232 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:10:10,233 INFO L385 BasicCegarLoop]: trace histogram [7, 3, 2, 2, 2, 2, 2, 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] [2019-10-07 14:10:11,036 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:10:11,037 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:10:11,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:10:11,039 INFO L82 PathProgramCache]: Analyzing trace with hash 262817382, now seen corresponding path program 1 times [2019-10-07 14:10:11,039 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:10:11,040 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:11,040 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:11,040 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:10:11,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:10:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:11,633 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-07 14:10:11,633 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:10:11,634 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:10:11,634 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 14:10:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:10:12,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 3623 conjuncts, 138 conjunts are in the unsatisfiable core [2019-10-07 14:10:12,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:10:12,795 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2019-10-07 14:10:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2019-10-07 14:10:13,219 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:10:13,377 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:10:13,676 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 13 [2019-10-07 14:10:13,892 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-10-07 14:11:04,073 WARN L191 SmtUtils]: Spent 49.88 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:11:04,986 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:11:05,283 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12 [2019-10-07 14:11:54,912 WARN L191 SmtUtils]: Spent 49.17 s on a formula simplification. DAG size of input: 1446 DAG size of output: 55 [2019-10-07 14:11:56,369 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:11:56,658 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12 [2019-10-07 14:12:46,216 WARN L191 SmtUtils]: Spent 49.15 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:12:47,070 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-10-07 14:13:37,216 WARN L191 SmtUtils]: Spent 49.83 s on a formula simplification. DAG size of input: 1451 DAG size of output: 55 [2019-10-07 14:13:37,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:37,850 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:37,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:37,851 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:37,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:13:37,853 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:14:27,128 WARN L191 SmtUtils]: Spent 48.79 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:14:27,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:14:27,506 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:14:27,507 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:14:27,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:14:27,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:14:27,509 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:14:27,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:18,961 WARN L191 SmtUtils]: Spent 50.95 s on a formula simplification. DAG size of input: 1469 DAG size of output: 55 [2019-10-07 14:15:19,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:19,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:19,032 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:19,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:19,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:19,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:19,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:19,130 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:15:19,414 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:15:19,712 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12 [2019-10-07 14:15:20,014 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:15:20,293 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 13 [2019-10-07 14:16:10,090 WARN L191 SmtUtils]: Spent 49.31 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:17:00,335 WARN L191 SmtUtils]: Spent 49.11 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:17:00,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:00,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:00,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:00,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:00,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:00,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:50,457 WARN L191 SmtUtils]: Spent 49.01 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:17:50,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:50,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:50,797 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:50,798 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:50,798 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:50,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:17:50,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:39,918 WARN L191 SmtUtils]: Spent 48.69 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:18:39,992 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:39,992 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:39,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:39,993 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:39,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:39,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:40,040 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:40,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:18:40,315 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:18:40,584 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 13 [2019-10-07 14:18:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-10-07 14:18:40,716 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-07 14:18:40,716 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [21, 15] total 50 [2019-10-07 14:18:40,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-07 14:18:40,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-07 14:18:40,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=2196, Unknown=0, NotChecked=0, Total=2450 [2019-10-07 14:18:40,718 INFO L87 Difference]: Start difference. First operand 8148 states and 11953 transitions. Second operand 21 states. [2019-10-07 14:18:52,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 14:18:52,418 INFO L93 Difference]: Finished difference Result 14422 states and 21262 transitions. [2019-10-07 14:18:52,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-07 14:18:52,419 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 193 [2019-10-07 14:18:52,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 14:18:52,448 INFO L225 Difference]: With dead ends: 14422 [2019-10-07 14:18:52,449 INFO L226 Difference]: Without dead ends: 6332 [2019-10-07 14:18:52,486 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 376 SyntacticMatches, 9 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=586, Invalid=3836, Unknown=0, NotChecked=0, Total=4422 [2019-10-07 14:18:52,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6332 states. [2019-10-07 14:18:52,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6332 to 6294. [2019-10-07 14:18:52,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6294 states. [2019-10-07 14:18:52,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6294 states to 6294 states and 9290 transitions. [2019-10-07 14:18:52,853 INFO L78 Accepts]: Start accepts. Automaton has 6294 states and 9290 transitions. Word has length 193 [2019-10-07 14:18:52,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 14:18:52,854 INFO L462 AbstractCegarLoop]: Abstraction has 6294 states and 9290 transitions. [2019-10-07 14:18:52,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-07 14:18:52,854 INFO L276 IsEmpty]: Start isEmpty. Operand 6294 states and 9290 transitions. [2019-10-07 14:18:52,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-10-07 14:18:52,859 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 14:18:52,860 INFO L385 BasicCegarLoop]: trace histogram [7, 3, 2, 2, 2, 2, 2, 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] [2019-10-07 14:18:53,078 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-07 14:18:53,078 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 14:18:53,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 14:18:53,079 INFO L82 PathProgramCache]: Analyzing trace with hash -442989055, now seen corresponding path program 1 times [2019-10-07 14:18:53,080 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 14:18:53,080 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:53,080 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:53,080 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 14:18:53,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 14:18:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:53,622 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-07 14:18:53,622 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 14:18:53,622 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019-10-07 14:18:53,623 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 14:18:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 14:18:54,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 3625 conjuncts, 110 conjunts are in the unsatisfiable core [2019-10-07 14:18:54,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-07 14:18:54,623 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2019-10-07 14:18:55,372 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2019-10-07 14:18:55,373 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-10-07 14:18:55,616 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:18:55,888 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 13 [2019-10-07 14:19:45,073 WARN L191 SmtUtils]: Spent 48.74 s on a formula simplification. DAG size of input: 1441 DAG size of output: 51 [2019-10-07 14:19:45,732 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:19:46,009 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12 [2019-10-07 14:20:35,515 WARN L191 SmtUtils]: Spent 49.09 s on a formula simplification. DAG size of input: 1445 DAG size of output: 55 [2019-10-07 14:20:36,353 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:20:36,837 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:20:37,305 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:20:37,383 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:37,730 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:20:38,188 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-10-07 14:20:38,248 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:38,345 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:38,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:38,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:38,417 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:38,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:38,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:38,459 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-07 14:20:38,692 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-10-07 14:20:38,987 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 12