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_spec13_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:06:20,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:06:20,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:06:20,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:06:20,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:06:20,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:06:20,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:06:20,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:06:20,099 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:06:20,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:06:20,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:06:20,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:06:20,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:06:20,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:06:20,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:06:20,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:06:20,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:06:20,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:06:20,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:06:20,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:06:20,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:06:20,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:06:20,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:06:20,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:06:20,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:06:20,135 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:06:20,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:06:20,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:06:20,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:06:20,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:06:20,140 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:06:20,141 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:06:20,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:06:20,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:06:20,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:06:20,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:06:20,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:06:20,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:06:20,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:06:20,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:06:20,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:06:20,149 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 [2019-10-15 03:06:20,184 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:06:20,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:06:20,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:06:20,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:06:20,187 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:06:20,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:06:20,187 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:06:20,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:06:20,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:06:20,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:06:20,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:06:20,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:06:20,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:06:20,192 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:06:20,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:06:20,192 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:06:20,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:06:20,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:06:20,193 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:06:20,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:06:20,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:06:20,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:06:20,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:06:20,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:06:20,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:06:20,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:06:20,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:06:20,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:06:20,195 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 [2019-10-15 03:06:20,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:06:20,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:06:20,583 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:06:20,584 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:06:20,584 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:06:20,585 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec13_productSimulator.cil.c [2019-10-15 03:06:20,667 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fdf0b89f/bcb176b7dbf949ecb537a88f26a2f2c1/FLAGa2bdf0864 [2019-10-15 03:06:21,450 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:06:21,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec13_productSimulator.cil.c [2019-10-15 03:06:21,488 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fdf0b89f/bcb176b7dbf949ecb537a88f26a2f2c1/FLAGa2bdf0864 [2019-10-15 03:06:21,549 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fdf0b89f/bcb176b7dbf949ecb537a88f26a2f2c1 [2019-10-15 03:06:21,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:06:21,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:06:21,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:06:21,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:06:21,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:06:21,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:06:21" (1/1) ... [2019-10-15 03:06:21,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a8eca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:21, skipping insertion in model container [2019-10-15 03:06:21,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:06:21" (1/1) ... [2019-10-15 03:06:21,586 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:06:21,667 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:06:22,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:06:22,439 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:06:22,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:06:22,716 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:06:22,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:22 WrapperNode [2019-10-15 03:06:22,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:06:22,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:06:22,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:06:22,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:06:22,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:22" (1/1) ... [2019-10-15 03:06:22,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:22" (1/1) ... [2019-10-15 03:06:22,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:22" (1/1) ... [2019-10-15 03:06:22,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:22" (1/1) ... [2019-10-15 03:06:22,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:22" (1/1) ... [2019-10-15 03:06:22,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:22" (1/1) ... [2019-10-15 03:06:22,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:22" (1/1) ... [2019-10-15 03:06:22,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:06:22,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:06:22,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:06:22,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:06:22,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:06:23,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:06:23,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:06:23,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:06:23,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:06:23,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:06:23,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:06:23,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:06:23,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:06:23,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:06:23,046 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:06:23,047 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:06:23,047 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:06:23,048 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:06:23,048 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:06:23,048 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:06:23,048 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:06:23,050 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:06:23,050 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:06:23,051 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:06:23,051 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:06:23,051 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:06:23,051 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:06:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:06:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:06:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:06:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:06:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__1 [2019-10-15 03:06:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__2 [2019-10-15 03:06:23,052 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:06:23,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:06:23,053 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:06:23,053 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:06:23,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:06:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:06:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:06:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:06:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:06:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:06:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:06:23,054 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:06:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:06:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:06:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:06:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:06:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:06:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:06:23,055 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:06:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked__before__overloaded [2019-10-15 03:06:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked__role__overloaded [2019-10-15 03:06:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:06:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__before__weight [2019-10-15 03:06:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__role__weight [2019-10-15 03:06:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:06:23,056 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__weight [2019-10-15 03:06:23,057 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__role__weight [2019-10-15 03:06:23,057 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__before__empty [2019-10-15 03:06:23,057 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__role__empty [2019-10-15 03:06:23,057 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:06:23,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:06:23,058 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:06:23,058 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:06:23,058 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:06:23,058 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:06:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:06:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:06:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:06:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:06:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__twothirdsfull [2019-10-15 03:06:23,059 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__role__twothirdsfull [2019-10-15 03:06:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__before__executivefloor [2019-10-15 03:06:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__role__executivefloor [2019-10-15 03:06:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:06:23,060 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:06:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:06:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2019-10-15 03:06:23,061 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__role__twothirdsfull [2019-10-15 03:06:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__before__executivefloor [2019-10-15 03:06:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__role__executivefloor [2019-10-15 03:06:23,062 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:06:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:06:23,063 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:06:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__before__overloaded [2019-10-15 03:06:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__role__overloaded [2019-10-15 03:06:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:06:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__before__overloaded [2019-10-15 03:06:23,064 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__role__overloaded [2019-10-15 03:06:23,065 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:06:23,065 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:06:23,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-15 03:06:23,066 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-15 03:06:23,066 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:06:23,066 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:06:23,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:06:23,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:06:23,066 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:06:23,066 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:06:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:06:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:06:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:06:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:06:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:06:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:06:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:06:23,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:06:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:06:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:06:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:06:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:06:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:06:23,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:06:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:06:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:06:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:06:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:06:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:06:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:06:23,069 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:06:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:06:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:06:23,070 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:06:23,071 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:06:23,071 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:06:23,071 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:06:23,071 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:06:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:06:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:06:23,072 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:06:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:06:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:06:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:06:23,073 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:06:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:06:23,074 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:06:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:06:23,078 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:06:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:06:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:06:23,079 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:06:23,081 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:06:23,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:06:23,081 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:06:23,081 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:06:23,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__1 [2019-10-15 03:06:23,082 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:06:23,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__2 [2019-10-15 03:06:23,090 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:06:23,090 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:06:23,090 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:06:23,090 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:06:23,090 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:06:23,092 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:06:23,092 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:06:23,092 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:06:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:06:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:06:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:06:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:06:23,093 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:06:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:06:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:06:23,094 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:06:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:06:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:06:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-15 03:06:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-15 03:06:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked__before__overloaded [2019-10-15 03:06:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked__role__overloaded [2019-10-15 03:06:23,095 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__before__weight [2019-10-15 03:06:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__role__weight [2019-10-15 03:06:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__weight [2019-10-15 03:06:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__role__weight [2019-10-15 03:06:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__before__empty [2019-10-15 03:06:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__role__empty [2019-10-15 03:06:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:06:23,096 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:06:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:06:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:06:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__twothirdsfull [2019-10-15 03:06:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__role__twothirdsfull [2019-10-15 03:06:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__before__executivefloor [2019-10-15 03:06:23,097 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__role__executivefloor [2019-10-15 03:06:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:06:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:06:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__twothirdsfull [2019-10-15 03:06:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__role__twothirdsfull [2019-10-15 03:06:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__before__executivefloor [2019-10-15 03:06:23,098 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__role__executivefloor [2019-10-15 03:06:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:06:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:06:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:06:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__before__overloaded [2019-10-15 03:06:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__role__overloaded [2019-10-15 03:06:23,099 INFO L130 BoogieDeclarations]: Found specification of procedure printState__before__overloaded [2019-10-15 03:06:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure printState__role__overloaded [2019-10-15 03:06:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:06:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:06:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:06:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:06:23,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:06:29,064 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:06:29,064 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:06:29,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:06:29 BoogieIcfgContainer [2019-10-15 03:06:29,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:06:29,068 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:06:29,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:06:29,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:06:29,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:06:21" (1/3) ... [2019-10-15 03:06:29,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21599d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:06:29, skipping insertion in model container [2019-10-15 03:06:29,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:06:22" (2/3) ... [2019-10-15 03:06:29,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21599d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:06:29, skipping insertion in model container [2019-10-15 03:06:29,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:06:29" (3/3) ... [2019-10-15 03:06:29,075 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec13_productSimulator.cil.c [2019-10-15 03:06:29,085 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:06:29,096 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:06:29,109 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:06:29,146 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:06:29,147 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:06:29,147 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:06:29,147 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:06:29,147 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:06:29,147 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:06:29,147 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:06:29,148 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:06:29,183 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states. [2019-10-15 03:06:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 03:06:29,206 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:06:29,207 INFO L380 BasicCegarLoop]: trace histogram [5, 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] [2019-10-15 03:06:29,210 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:06:29,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:06:29,216 INFO L82 PathProgramCache]: Analyzing trace with hash 718339452, now seen corresponding path program 1 times [2019-10-15 03:06:29,226 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:06:29,226 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534590858] [2019-10-15 03:06:29,227 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:29,227 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:29,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:06:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:06:30,003 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 03:06:30,004 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534590858] [2019-10-15 03:06:30,005 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:06:30,006 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:06:30,006 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740055601] [2019-10-15 03:06:30,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:06:30,013 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:06:30,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:06:30,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:06:30,031 INFO L87 Difference]: Start difference. First operand 726 states. Second operand 6 states. [2019-10-15 03:06:30,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:06:30,589 INFO L93 Difference]: Finished difference Result 1190 states and 1756 transitions. [2019-10-15 03:06:30,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:06:30,592 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2019-10-15 03:06:30,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:06:30,626 INFO L225 Difference]: With dead ends: 1190 [2019-10-15 03:06:30,626 INFO L226 Difference]: Without dead ends: 598 [2019-10-15 03:06:30,674 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:06:30,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2019-10-15 03:06:30,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2019-10-15 03:06:30,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2019-10-15 03:06:30,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 866 transitions. [2019-10-15 03:06:30,810 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 866 transitions. Word has length 121 [2019-10-15 03:06:30,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:06:30,812 INFO L462 AbstractCegarLoop]: Abstraction has 598 states and 866 transitions. [2019-10-15 03:06:30,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:06:30,813 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 866 transitions. [2019-10-15 03:06:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-15 03:06:30,824 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:06:30,825 INFO L380 BasicCegarLoop]: trace histogram [5, 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] [2019-10-15 03:06:30,825 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:06:30,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:06:30,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1365224182, now seen corresponding path program 1 times [2019-10-15 03:06:30,826 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:06:30,826 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106599325] [2019-10-15 03:06:30,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:30,826 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:30,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:06:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:06:31,080 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 03:06:31,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106599325] [2019-10-15 03:06:31,081 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:06:31,081 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:06:31,081 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477228683] [2019-10-15 03:06:31,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:06:31,086 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:06:31,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:06:31,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:06:31,087 INFO L87 Difference]: Start difference. First operand 598 states and 866 transitions. Second operand 4 states. [2019-10-15 03:06:32,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:06:32,301 INFO L93 Difference]: Finished difference Result 1166 states and 1713 transitions. [2019-10-15 03:06:32,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:06:32,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2019-10-15 03:06:32,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:06:32,310 INFO L225 Difference]: With dead ends: 1166 [2019-10-15 03:06:32,310 INFO L226 Difference]: Without dead ends: 596 [2019-10-15 03:06:32,315 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:06:32,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-15 03:06:32,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2019-10-15 03:06:32,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 596 states. [2019-10-15 03:06:32,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 858 transitions. [2019-10-15 03:06:32,373 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 858 transitions. Word has length 122 [2019-10-15 03:06:32,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:06:32,374 INFO L462 AbstractCegarLoop]: Abstraction has 596 states and 858 transitions. [2019-10-15 03:06:32,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:06:32,374 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 858 transitions. [2019-10-15 03:06:32,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-10-15 03:06:32,377 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:06:32,378 INFO L380 BasicCegarLoop]: trace histogram [5, 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] [2019-10-15 03:06:32,378 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:06:32,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:06:32,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1199005239, now seen corresponding path program 1 times [2019-10-15 03:06:32,379 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:06:32,379 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277613099] [2019-10-15 03:06:32,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:32,379 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:32,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:06:32,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:06:32,701 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 03:06:32,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277613099] [2019-10-15 03:06:32,702 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:06:32,702 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:06:32,702 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698892515] [2019-10-15 03:06:32,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:06:32,706 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:06:32,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:06:32,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:06:32,707 INFO L87 Difference]: Start difference. First operand 596 states and 858 transitions. Second operand 3 states. [2019-10-15 03:06:32,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:06:32,829 INFO L93 Difference]: Finished difference Result 1681 states and 2461 transitions. [2019-10-15 03:06:32,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:06:32,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2019-10-15 03:06:32,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:06:32,847 INFO L225 Difference]: With dead ends: 1681 [2019-10-15 03:06:32,848 INFO L226 Difference]: Without dead ends: 1141 [2019-10-15 03:06:32,853 INFO L600 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 [2019-10-15 03:06:32,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2019-10-15 03:06:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1137. [2019-10-15 03:06:32,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1137 states. [2019-10-15 03:06:32,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1656 transitions. [2019-10-15 03:06:32,935 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1656 transitions. Word has length 123 [2019-10-15 03:06:32,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:06:32,936 INFO L462 AbstractCegarLoop]: Abstraction has 1137 states and 1656 transitions. [2019-10-15 03:06:32,936 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:06:32,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1656 transitions. [2019-10-15 03:06:32,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-15 03:06:32,940 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:06:32,940 INFO L380 BasicCegarLoop]: trace histogram [5, 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] [2019-10-15 03:06:32,940 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:06:32,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:06:32,941 INFO L82 PathProgramCache]: Analyzing trace with hash 186326343, now seen corresponding path program 1 times [2019-10-15 03:06:32,941 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:06:32,941 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630359196] [2019-10-15 03:06:32,942 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:32,942 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:32,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:06:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:06:33,188 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-10-15 03:06:33,188 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630359196] [2019-10-15 03:06:33,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681739499] [2019-10-15 03:06:33,189 INFO L94 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 [2019-10-15 03:06:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:06:33,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 3243 conjuncts, 15 conjunts are in the unsatisfiable core [2019-10-15 03:06:33,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:06:34,259 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-10-15 03:06:34,260 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:06:34,452 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:06:34,721 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 03:06:34,722 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:06:34,722 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [4] total 11 [2019-10-15 03:06:34,723 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754556811] [2019-10-15 03:06:34,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:06:34,725 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:06:34,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:06:34,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:06:34,726 INFO L87 Difference]: Start difference. First operand 1137 states and 1656 transitions. Second operand 9 states. [2019-10-15 03:06:46,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:06:46,181 INFO L93 Difference]: Finished difference Result 5712 states and 8722 transitions. [2019-10-15 03:06:46,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:06:46,182 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 124 [2019-10-15 03:06:46,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:06:46,224 INFO L225 Difference]: With dead ends: 5712 [2019-10-15 03:06:46,224 INFO L226 Difference]: Without dead ends: 4660 [2019-10-15 03:06:46,232 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-10-15 03:06:46,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4660 states. [2019-10-15 03:06:46,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4660 to 4553. [2019-10-15 03:06:46,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4553 states. [2019-10-15 03:06:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4553 states to 4553 states and 7004 transitions. [2019-10-15 03:06:46,585 INFO L78 Accepts]: Start accepts. Automaton has 4553 states and 7004 transitions. Word has length 124 [2019-10-15 03:06:46,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:06:46,594 INFO L462 AbstractCegarLoop]: Abstraction has 4553 states and 7004 transitions. [2019-10-15 03:06:46,594 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:06:46,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4553 states and 7004 transitions. [2019-10-15 03:06:46,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-10-15 03:06:46,608 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:06:46,608 INFO L380 BasicCegarLoop]: trace histogram [5, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:06:46,817 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:06:46,817 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:06:46,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:06:46,818 INFO L82 PathProgramCache]: Analyzing trace with hash 260796516, now seen corresponding path program 1 times [2019-10-15 03:06:46,819 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:06:46,819 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133729741] [2019-10-15 03:06:46,819 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:46,820 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:46,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:06:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:06:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-10-15 03:06:47,092 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133729741] [2019-10-15 03:06:47,092 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:06:47,093 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:06:47,093 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870711282] [2019-10-15 03:06:47,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:06:47,094 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:06:47,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:06:47,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:06:47,095 INFO L87 Difference]: Start difference. First operand 4553 states and 7004 transitions. Second operand 3 states. [2019-10-15 03:06:47,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:06:47,395 INFO L93 Difference]: Finished difference Result 5675 states and 8718 transitions. [2019-10-15 03:06:47,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:06:47,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-10-15 03:06:47,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:06:47,438 INFO L225 Difference]: With dead ends: 5675 [2019-10-15 03:06:47,438 INFO L226 Difference]: Without dead ends: 3468 [2019-10-15 03:06:47,463 INFO L600 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 [2019-10-15 03:06:47,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2019-10-15 03:06:47,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 3464. [2019-10-15 03:06:47,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3464 states. [2019-10-15 03:06:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3464 states to 3464 states and 5286 transitions. [2019-10-15 03:06:47,751 INFO L78 Accepts]: Start accepts. Automaton has 3464 states and 5286 transitions. Word has length 174 [2019-10-15 03:06:47,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:06:47,752 INFO L462 AbstractCegarLoop]: Abstraction has 3464 states and 5286 transitions. [2019-10-15 03:06:47,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:06:47,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3464 states and 5286 transitions. [2019-10-15 03:06:47,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-10-15 03:06:47,764 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:06:47,764 INFO L380 BasicCegarLoop]: trace histogram [5, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:06:47,765 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:06:47,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:06:47,765 INFO L82 PathProgramCache]: Analyzing trace with hash 381916500, now seen corresponding path program 1 times [2019-10-15 03:06:47,765 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:06:47,766 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340558321] [2019-10-15 03:06:47,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:47,766 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:47,766 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:06:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:06:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2019-10-15 03:06:48,070 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340558321] [2019-10-15 03:06:48,070 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:06:48,070 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:06:48,070 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245963150] [2019-10-15 03:06:48,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:06:48,071 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:06:48,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:06:48,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:06:48,072 INFO L87 Difference]: Start difference. First operand 3464 states and 5286 transitions. Second operand 7 states. [2019-10-15 03:06:54,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:06:54,177 INFO L93 Difference]: Finished difference Result 10476 states and 16168 transitions. [2019-10-15 03:06:54,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-15 03:06:54,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 173 [2019-10-15 03:06:54,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:06:54,236 INFO L225 Difference]: With dead ends: 10476 [2019-10-15 03:06:54,236 INFO L226 Difference]: Without dead ends: 7098 [2019-10-15 03:06:54,258 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:06:54,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7098 states. [2019-10-15 03:06:54,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7098 to 6883. [2019-10-15 03:06:54,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6883 states. [2019-10-15 03:06:54,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6883 states to 6883 states and 10574 transitions. [2019-10-15 03:06:54,848 INFO L78 Accepts]: Start accepts. Automaton has 6883 states and 10574 transitions. Word has length 173 [2019-10-15 03:06:54,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:06:54,849 INFO L462 AbstractCegarLoop]: Abstraction has 6883 states and 10574 transitions. [2019-10-15 03:06:54,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:06:54,849 INFO L276 IsEmpty]: Start isEmpty. Operand 6883 states and 10574 transitions. [2019-10-15 03:06:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2019-10-15 03:06:54,860 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:06:54,861 INFO L380 BasicCegarLoop]: trace histogram [5, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:06:54,861 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:06:54,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:06:54,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1647600245, now seen corresponding path program 1 times [2019-10-15 03:06:54,862 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:06:54,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764117619] [2019-10-15 03:06:54,862 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:54,863 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:54,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:06:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:06:55,169 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-15 03:06:55,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764117619] [2019-10-15 03:06:55,169 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186870944] [2019-10-15 03:06:55,170 INFO L94 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 [2019-10-15 03:06:55,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:06:55,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 3423 conjuncts, 5 conjunts are in the unsatisfiable core [2019-10-15 03:06:55,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:06:55,895 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 03:06:55,895 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:06:56,364 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-10-15 03:06:56,364 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:06:56,365 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 5 [2019-10-15 03:06:56,365 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183094537] [2019-10-15 03:06:56,366 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:06:56,367 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:06:56,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:06:56,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:06:56,367 INFO L87 Difference]: Start difference. First operand 6883 states and 10574 transitions. Second operand 4 states. [2019-10-15 03:06:56,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:06:56,798 INFO L93 Difference]: Finished difference Result 13754 states and 21357 transitions. [2019-10-15 03:06:56,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:06:56,799 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2019-10-15 03:06:56,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:06:56,852 INFO L225 Difference]: With dead ends: 13754 [2019-10-15 03:06:56,853 INFO L226 Difference]: Without dead ends: 6955 [2019-10-15 03:06:56,897 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:06:56,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6955 states. [2019-10-15 03:06:57,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6955 to 6955. [2019-10-15 03:06:57,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6955 states. [2019-10-15 03:06:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 10646 transitions. [2019-10-15 03:06:57,276 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 10646 transitions. Word has length 177 [2019-10-15 03:06:57,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:06:57,277 INFO L462 AbstractCegarLoop]: Abstraction has 6955 states and 10646 transitions. [2019-10-15 03:06:57,277 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:06:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 10646 transitions. [2019-10-15 03:06:57,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 03:06:57,290 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:06:57,290 INFO L380 BasicCegarLoop]: trace histogram [5, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:06:57,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:06:57,502 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:06:57,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:06:57,502 INFO L82 PathProgramCache]: Analyzing trace with hash -19205950, now seen corresponding path program 1 times [2019-10-15 03:06:57,503 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:06:57,503 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123166524] [2019-10-15 03:06:57,503 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:57,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:06:57,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:06:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:06:57,743 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 03:06:57,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123166524] [2019-10-15 03:06:57,744 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803131410] [2019-10-15 03:06:57,744 INFO L94 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