/usr/bin/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_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:08:15,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:08:15,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:08:15,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:08:15,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:08:15,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:08:15,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:08:15,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:08:15,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:08:15,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:08:15,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:08:15,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:08:15,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:08:15,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:08:15,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:08:15,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:08:15,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:08:15,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:08:15,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:08:15,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:08:15,226 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:08:15,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:08:15,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:08:15,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:08:15,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:08:15,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:08:15,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:08:15,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:08:15,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:08:15,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:08:15,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:08:15,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:08:15,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:08:15,246 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:08:15,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:08:15,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:08:15,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:08:15,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:08:15,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:08:15,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:08:15,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:08:15,251 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 [2019-11-07 04:08:15,268 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:08:15,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:08:15,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:08:15,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:08:15,270 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:08:15,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:08:15,271 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:08:15,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:08:15,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:08:15,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:08:15,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:08:15,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:08:15,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:08:15,272 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:08:15,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:08:15,272 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:08:15,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:08:15,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:08:15,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:08:15,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:08:15,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:08:15,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:08:15,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:08:15,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:08:15,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:08:15,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:08:15,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:08:15,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:08:15,275 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 [2019-11-07 04:08:15,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:08:15,600 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:08:15,604 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:08:15,605 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:08:15,606 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:08:15,606 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c [2019-11-07 04:08:15,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b4ed9ca5/df4b2923355249ef81095a5435e07ca6/FLAGd5e1ec025 [2019-11-07 04:08:16,309 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:08:16,310 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product11.cil.c [2019-11-07 04:08:16,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b4ed9ca5/df4b2923355249ef81095a5435e07ca6/FLAGd5e1ec025 [2019-11-07 04:08:16,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b4ed9ca5/df4b2923355249ef81095a5435e07ca6 [2019-11-07 04:08:16,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:08:16,554 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:08:16,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:08:16,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:08:16,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:08:16,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:08:16" (1/1) ... [2019-11-07 04:08:16,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba60eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:16, skipping insertion in model container [2019-11-07 04:08:16,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:08:16" (1/1) ... [2019-11-07 04:08:16,586 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:08:16,748 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:08:17,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:08:17,506 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:08:17,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:08:17,693 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:08:17,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:17 WrapperNode [2019-11-07 04:08:17,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:08:17,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:08:17,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:08:17,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:08:17,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:17" (1/1) ... [2019-11-07 04:08:17,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:17" (1/1) ... [2019-11-07 04:08:17,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:17" (1/1) ... [2019-11-07 04:08:17,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:17" (1/1) ... [2019-11-07 04:08:17,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:17" (1/1) ... [2019-11-07 04:08:17,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:17" (1/1) ... [2019-11-07 04:08:17,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:17" (1/1) ... [2019-11-07 04:08:17,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:08:17,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:08:17,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:08:17,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:08:17,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:17" (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 [2019-11-07 04:08:17,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:08:17,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:08:17,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 04:08:17,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-11-07 04:08:17,994 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-11-07 04:08:17,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-11-07 04:08:17,996 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 04:08:17,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-11-07 04:08:17,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2019-11-07 04:08:17,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2019-11-07 04:08:17,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2019-11-07 04:08:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-11-07 04:08:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-11-07 04:08:17,998 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-11-07 04:08:17,999 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-11-07 04:08:17,999 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-11-07 04:08:18,001 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-11-07 04:08:18,002 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-11-07 04:08:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-11-07 04:08:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-11-07 04:08:18,003 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-11-07 04:08:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-11-07 04:08:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-11-07 04:08:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-11-07 04:08:18,004 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-11-07 04:08:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-11-07 04:08:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-11-07 04:08:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-11-07 04:08:18,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-11-07 04:08:18,006 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-11-07 04:08:18,006 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-11-07 04:08:18,007 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-11-07 04:08:18,007 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-11-07 04:08:18,007 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-11-07 04:08:18,007 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-07 04:08:18,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-11-07 04:08:18,008 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-11-07 04:08:18,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-11-07 04:08:18,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-11-07 04:08:18,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 04:08:18,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 04:08:18,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 04:08:18,009 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 04:08:18,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 04:08:18,010 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-11-07 04:08:18,010 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-11-07 04:08:18,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 04:08:18,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 04:08:18,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 04:08:18,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 04:08:18,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 04:08:18,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 04:08:18,012 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-11-07 04:08:18,012 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-11-07 04:08:18,012 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-11-07 04:08:18,012 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-11-07 04:08:18,013 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-11-07 04:08:18,013 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-11-07 04:08:18,013 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-11-07 04:08:18,014 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-11-07 04:08:18,014 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-07 04:08:18,014 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-11-07 04:08:18,014 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-11-07 04:08:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-11-07 04:08:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-07 04:08:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-11-07 04:08:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 04:08:18,015 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-07 04:08:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:08:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-11-07 04:08:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-11-07 04:08:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-11-07 04:08:18,016 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-11-07 04:08:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-11-07 04:08:18,017 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-11-07 04:08:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-11-07 04:08:18,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-11-07 04:08:18,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:08:18,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:08:18,019 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-11-07 04:08:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-11-07 04:08:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-11-07 04:08:18,020 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-11-07 04:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-11-07 04:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-07 04:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 04:08:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 04:08:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-11-07 04:08:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-11-07 04:08:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-11-07 04:08:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2019-11-07 04:08:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2019-11-07 04:08:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2019-11-07 04:08:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 04:08:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-11-07 04:08:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-11-07 04:08:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-11-07 04:08:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-11-07 04:08:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-11-07 04:08:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-11-07 04:08:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-11-07 04:08:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-07 04:08:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-11-07 04:08:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-11-07 04:08:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-11-07 04:08:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-11-07 04:08:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-11-07 04:08:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-11-07 04:08:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-11-07 04:08:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-11-07 04:08:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-11-07 04:08:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-11-07 04:08:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-11-07 04:08:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-11-07 04:08:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-11-07 04:08:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-11-07 04:08:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-11-07 04:08:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-11-07 04:08:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-11-07 04:08:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-11-07 04:08:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-11-07 04:08:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-11-07 04:08:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-11-07 04:08:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-11-07 04:08:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-11-07 04:08:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 04:08:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-11-07 04:08:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 04:08:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 04:08:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 04:08:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 04:08:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-11-07 04:08:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-11-07 04:08:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-11-07 04:08:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 04:08:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 04:08:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 04:08:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 04:08:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 04:08:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 04:08:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 04:08:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 04:08:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 04:08:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 04:08:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 04:08:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 04:08:18,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 04:08:18,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 04:08:18,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 04:08:18,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 04:08:18,050 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 04:08:18,051 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-11-07 04:08:18,051 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-11-07 04:08:18,051 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-11-07 04:08:18,051 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-11-07 04:08:18,051 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-11-07 04:08:18,051 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-11-07 04:08:18,051 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-11-07 04:08:18,052 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-11-07 04:08:18,052 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-11-07 04:08:18,052 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-07 04:08:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-11-07 04:08:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 04:08:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-07 04:08:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:08:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-11-07 04:08:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:08:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 04:08:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:08:23,768 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:08:23,768 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-07 04:08:23,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:08:23 BoogieIcfgContainer [2019-11-07 04:08:23,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:08:23,771 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:08:23,771 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:08:23,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:08:23,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:08:16" (1/3) ... [2019-11-07 04:08:23,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6594a669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:08:23, skipping insertion in model container [2019-11-07 04:08:23,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:08:17" (2/3) ... [2019-11-07 04:08:23,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6594a669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:08:23, skipping insertion in model container [2019-11-07 04:08:23,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:08:23" (3/3) ... [2019-11-07 04:08:23,778 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product11.cil.c [2019-11-07 04:08:23,787 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:08:23,796 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:08:23,808 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:08:23,839 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:08:23,839 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:08:23,839 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:08:23,839 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:08:23,839 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:08:23,840 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:08:23,840 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:08:23,840 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:08:23,873 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states. [2019-11-07 04:08:23,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-11-07 04:08:23,901 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:23,905 INFO L410 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] [2019-11-07 04:08:23,909 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:23,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:23,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1182461957, now seen corresponding path program 1 times [2019-11-07 04:08:23,929 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:23,930 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608226527] [2019-11-07 04:08:23,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:24,630 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:08:24,631 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608226527] [2019-11-07 04:08:24,632 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:08:24,632 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 04:08:24,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780347603] [2019-11-07 04:08:24,638 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 04:08:24,639 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:08:24,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 04:08:24,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 04:08:24,656 INFO L87 Difference]: Start difference. First operand 565 states. Second operand 2 states. [2019-11-07 04:08:24,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:08:24,723 INFO L93 Difference]: Finished difference Result 474 states and 706 transitions. [2019-11-07 04:08:24,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 04:08:24,725 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 135 [2019-11-07 04:08:24,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:08:24,767 INFO L225 Difference]: With dead ends: 474 [2019-11-07 04:08:24,767 INFO L226 Difference]: Without dead ends: 440 [2019-11-07 04:08:24,773 INFO L630 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 [2019-11-07 04:08:24,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-11-07 04:08:24,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2019-11-07 04:08:24,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2019-11-07 04:08:24,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 655 transitions. [2019-11-07 04:08:24,897 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 655 transitions. Word has length 135 [2019-11-07 04:08:24,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:08:24,902 INFO L462 AbstractCegarLoop]: Abstraction has 440 states and 655 transitions. [2019-11-07 04:08:24,902 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 04:08:24,903 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 655 transitions. [2019-11-07 04:08:24,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-11-07 04:08:24,914 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:24,914 INFO L410 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] [2019-11-07 04:08:24,915 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:24,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:24,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1045736166, now seen corresponding path program 1 times [2019-11-07 04:08:24,915 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:24,916 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508799868] [2019-11-07 04:08:24,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:25,457 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:08:25,458 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508799868] [2019-11-07 04:08:25,458 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:08:25,459 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:08:25,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563499497] [2019-11-07 04:08:25,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:08:25,465 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:08:25,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:08:25,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:08:25,466 INFO L87 Difference]: Start difference. First operand 440 states and 655 transitions. Second operand 7 states. [2019-11-07 04:08:29,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:08:29,700 INFO L93 Difference]: Finished difference Result 1225 states and 1876 transitions. [2019-11-07 04:08:29,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:08:29,701 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2019-11-07 04:08:29,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:08:29,718 INFO L225 Difference]: With dead ends: 1225 [2019-11-07 04:08:29,719 INFO L226 Difference]: Without dead ends: 838 [2019-11-07 04:08:29,724 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:08:29,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2019-11-07 04:08:29,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 813. [2019-11-07 04:08:29,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2019-11-07 04:08:29,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1240 transitions. [2019-11-07 04:08:29,802 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1240 transitions. Word has length 136 [2019-11-07 04:08:29,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:08:29,803 INFO L462 AbstractCegarLoop]: Abstraction has 813 states and 1240 transitions. [2019-11-07 04:08:29,803 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:08:29,803 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1240 transitions. [2019-11-07 04:08:29,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2019-11-07 04:08:29,807 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:29,807 INFO L410 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] [2019-11-07 04:08:29,808 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:29,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:29,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1456942530, now seen corresponding path program 1 times [2019-11-07 04:08:29,808 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:29,808 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954046995] [2019-11-07 04:08:29,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:29,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:08:30,094 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954046995] [2019-11-07 04:08:30,094 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:08:30,094 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:08:30,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970989885] [2019-11-07 04:08:30,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:08:30,095 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:08:30,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:08:30,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:08:30,096 INFO L87 Difference]: Start difference. First operand 813 states and 1240 transitions. Second operand 6 states. [2019-11-07 04:08:30,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:08:30,837 INFO L93 Difference]: Finished difference Result 852 states and 1296 transitions. [2019-11-07 04:08:30,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:08:30,838 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2019-11-07 04:08:30,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:08:30,845 INFO L225 Difference]: With dead ends: 852 [2019-11-07 04:08:30,846 INFO L226 Difference]: Without dead ends: 835 [2019-11-07 04:08:30,847 INFO L630 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 [2019-11-07 04:08:30,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2019-11-07 04:08:30,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 817. [2019-11-07 04:08:30,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2019-11-07 04:08:30,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1244 transitions. [2019-11-07 04:08:30,908 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1244 transitions. Word has length 140 [2019-11-07 04:08:30,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:08:30,911 INFO L462 AbstractCegarLoop]: Abstraction has 817 states and 1244 transitions. [2019-11-07 04:08:30,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:08:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1244 transitions. [2019-11-07 04:08:30,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-11-07 04:08:30,917 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:30,918 INFO L410 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] [2019-11-07 04:08:30,918 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:30,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:30,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1766301213, now seen corresponding path program 1 times [2019-11-07 04:08:30,919 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:30,919 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759268929] [2019-11-07 04:08:30,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:31,157 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 04:08:31,158 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759268929] [2019-11-07 04:08:31,158 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:08:31,158 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:08:31,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963151325] [2019-11-07 04:08:31,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:08:31,159 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:08:31,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:08:31,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:08:31,160 INFO L87 Difference]: Start difference. First operand 817 states and 1244 transitions. Second operand 8 states. [2019-11-07 04:08:31,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:08:31,239 INFO L93 Difference]: Finished difference Result 838 states and 1270 transitions. [2019-11-07 04:08:31,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:08:31,240 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 145 [2019-11-07 04:08:31,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:08:31,247 INFO L225 Difference]: With dead ends: 838 [2019-11-07 04:08:31,247 INFO L226 Difference]: Without dead ends: 821 [2019-11-07 04:08:31,248 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:08:31,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2019-11-07 04:08:31,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 817. [2019-11-07 04:08:31,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2019-11-07 04:08:31,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1242 transitions. [2019-11-07 04:08:31,294 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1242 transitions. Word has length 145 [2019-11-07 04:08:31,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:08:31,295 INFO L462 AbstractCegarLoop]: Abstraction has 817 states and 1242 transitions. [2019-11-07 04:08:31,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:08:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1242 transitions. [2019-11-07 04:08:31,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-07 04:08:31,299 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:31,299 INFO L410 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] [2019-11-07 04:08:31,300 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:31,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:31,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1194523864, now seen corresponding path program 1 times [2019-11-07 04:08:31,300 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:31,300 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632653023] [2019-11-07 04:08:31,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:31,928 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2019-11-07 04:08:32,665 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 04:08:32,666 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632653023] [2019-11-07 04:08:32,666 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518027759] [2019-11-07 04:08:32,666 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 [2019-11-07 04:08:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:33,401 INFO L256 TraceCheckSpWp]: Trace formula consists of 3266 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-07 04:08:33,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:08:33,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 04:08:33,785 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:08:34,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:34,593 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-11-07 04:08:34,594 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 04:08:34,594 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [32] total 37 [2019-11-07 04:08:34,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448570065] [2019-11-07 04:08:34,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:08:34,595 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:08:34,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:08:34,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1223, Unknown=0, NotChecked=0, Total=1332 [2019-11-07 04:08:34,596 INFO L87 Difference]: Start difference. First operand 817 states and 1242 transitions. Second operand 7 states. [2019-11-07 04:08:34,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:08:34,701 INFO L93 Difference]: Finished difference Result 860 states and 1296 transitions. [2019-11-07 04:08:34,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:08:34,702 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 160 [2019-11-07 04:08:34,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:08:34,711 INFO L225 Difference]: With dead ends: 860 [2019-11-07 04:08:34,711 INFO L226 Difference]: Without dead ends: 843 [2019-11-07 04:08:34,713 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=113, Invalid=1293, Unknown=0, NotChecked=0, Total=1406 [2019-11-07 04:08:34,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2019-11-07 04:08:34,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 829. [2019-11-07 04:08:34,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 829 states. [2019-11-07 04:08:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1254 transitions. [2019-11-07 04:08:34,772 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1254 transitions. Word has length 160 [2019-11-07 04:08:34,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:08:34,773 INFO L462 AbstractCegarLoop]: Abstraction has 829 states and 1254 transitions. [2019-11-07 04:08:34,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:08:34,773 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1254 transitions. [2019-11-07 04:08:34,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 04:08:34,777 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:08:34,778 INFO L410 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] [2019-11-07 04:08:34,986 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:08:34,986 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:08:34,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:08:34,987 INFO L82 PathProgramCache]: Analyzing trace with hash 982452877, now seen corresponding path program 1 times [2019-11-07 04:08:34,987 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:08:34,987 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979320678] [2019-11-07 04:08:34,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:08:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:35,581 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-11-07 04:08:35,581 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979320678] [2019-11-07 04:08:35,581 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441808791] [2019-11-07 04:08:35,581 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 [2019-11-07 04:08:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:08:36,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 3330 conjuncts, 41 conjunts are in the unsatisfiable core [2019-11-07 04:08:36,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:08:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-11-07 04:08:37,144 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:08:37,830 WARN L191 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:08:38,266 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-11-07 04:08:39,048 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:08:39,504 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-11-07 04:08:39,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,873 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,875 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,875 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,877 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,879 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,881 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:39,882 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:40,496 WARN L191 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:08:40,720 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2019-11-07 04:08:40,956 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-11-07 04:08:41,773 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:08:42,276 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-11-07 04:08:42,442 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,444 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:42,971 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:08:43,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:43,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:43,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:43,904 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:08:44,129 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2019-11-07 04:08:44,695 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 13 [2019-11-07 04:08:45,292 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:08:45,686 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-11-07 04:08:46,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,045 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:46,638 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:08:47,026 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-11-07 04:08:47,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,177 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,182 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:47,903 WARN L191 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:08:48,185 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:48,185 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,186 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,188 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,189 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,193 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,193 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,194 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,840 WARN L191 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 43 [2019-11-07 04:08:48,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,904 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:48,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,905 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:48,906 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,907 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:48,908 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:48,909 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:48,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:48,914 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:48,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:48,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:48,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:48,919 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-11-07 04:08:49,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:49,032 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:49,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:49,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:49,033 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:08:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-11-07 04:08:49,185 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [736409481] [2019-11-07 04:08:49,221 INFO L159 IcfgInterpreter]: Started Sifa with 152 locations of interest [2019-11-07 04:08:49,221 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:08:49,228 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:08:49,235 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:08:49,235 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs