java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:08:31,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:08:31,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:08:31,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:08:31,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:08:31,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:08:31,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:08:31,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:08:31,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:08:31,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:08:31,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:08:31,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:08:31,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:08:31,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:08:31,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:08:31,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:08:31,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:08:31,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:08:31,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:08:31,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:08:31,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:08:31,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:08:31,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:08:31,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:08:31,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:08:31,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:08:31,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:08:31,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:08:31,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:08:31,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:08:31,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:08:31,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:08:31,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:08:31,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:08:31,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:08:31,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:08:31,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:08:31,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:08:31,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:08:31,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:08:31,336 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:08:31,337 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 03:08:31,359 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:08:31,360 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:08:31,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:08:31,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:08:31,362 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:08:31,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:08:31,363 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:08:31,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:08:31,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:08:31,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:08:31,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:08:31,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:08:31,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:08:31,366 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:08:31,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:08:31,366 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:08:31,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:08:31,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:08:31,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:08:31,367 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:08:31,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:08:31,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:08:31,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:08:31,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:08:31,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:08:31,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:08:31,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:08:31,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:08:31,369 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 03:08:31,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:08:31,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:08:31,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:08:31,765 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:08:31,765 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:08:31,766 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product29.cil.c [2019-10-15 03:08:31,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98fa1dc1d/010ea360b4644bff98d312a2b151f548/FLAGbba94d9be [2019-10-15 03:08:32,767 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:08:32,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product29.cil.c [2019-10-15 03:08:32,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98fa1dc1d/010ea360b4644bff98d312a2b151f548/FLAGbba94d9be [2019-10-15 03:08:32,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98fa1dc1d/010ea360b4644bff98d312a2b151f548 [2019-10-15 03:08:32,861 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:08:32,863 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:08:32,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:08:32,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:08:32,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:08:32,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:08:32" (1/1) ... [2019-10-15 03:08:32,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@309b44b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:32, skipping insertion in model container [2019-10-15 03:08:32,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:08:32" (1/1) ... [2019-10-15 03:08:32,881 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:08:32,972 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:08:33,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:08:33,915 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:08:34,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:08:34,189 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:08:34,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:34 WrapperNode [2019-10-15 03:08:34,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:08:34,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:08:34,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:08:34,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:08:34,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:34" (1/1) ... [2019-10-15 03:08:34,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:34" (1/1) ... [2019-10-15 03:08:34,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:34" (1/1) ... [2019-10-15 03:08:34,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:34" (1/1) ... [2019-10-15 03:08:34,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:34" (1/1) ... [2019-10-15 03:08:34,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:34" (1/1) ... [2019-10-15 03:08:34,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:34" (1/1) ... [2019-10-15 03:08:34,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:08:34,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:08:34,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:08:34,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:08:34,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:34" (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 03:08:34,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:08:34,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:08:34,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:08:34,608 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-15 03:08:34,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-15 03:08:34,608 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-15 03:08:34,608 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-15 03:08:34,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-15 03:08:34,609 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-15 03:08:34,609 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-15 03:08:34,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-15 03:08:34,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:08:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:08:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-15 03:08:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-15 03:08:34,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-15 03:08:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-15 03:08:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-15 03:08:34,616 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-15 03:08:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-10-15 03:08:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-15 03:08:34,618 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-15 03:08:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-15 03:08:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-15 03:08:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-15 03:08:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-15 03:08:34,619 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-15 03:08:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-15 03:08:34,620 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-15 03:08:34,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-15 03:08:34,621 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-10-15 03:08:34,622 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-15 03:08:34,623 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-15 03:08:34,624 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-15 03:08:34,625 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-15 03:08:34,627 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-15 03:08:34,627 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-15 03:08:34,627 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-15 03:08:34,628 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:08:34,628 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-15 03:08:34,628 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-15 03:08:34,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:08:34,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:08:34,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:08:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:08:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:08:34,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:08:34,631 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-15 03:08:34,631 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-15 03:08:34,632 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-15 03:08:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-15 03:08:34,633 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-15 03:08:34,635 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-15 03:08:34,636 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-15 03:08:34,636 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-15 03:08:34,636 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:08:34,636 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-15 03:08:34,637 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-15 03:08:34,637 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-15 03:08:34,638 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:08:34,639 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-15 03:08:34,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:08:34,640 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:08:34,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:08:34,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-15 03:08:34,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-15 03:08:34,641 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-15 03:08:34,642 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-15 03:08:34,642 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-15 03:08:34,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:08:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:08:34,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-15 03:08:34,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-15 03:08:34,648 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:08:34,649 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:08:34,650 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:08:34,653 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:08:34,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:08:34,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:08:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-15 03:08:34,658 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-15 03:08:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-15 03:08:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-15 03:08:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-15 03:08:34,661 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-15 03:08:34,662 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-15 03:08:34,662 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-15 03:08:34,664 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:08:34,664 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-15 03:08:34,664 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:08:34,665 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:08:34,665 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:08:34,665 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-15 03:08:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-15 03:08:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-15 03:08:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:08:34,666 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-15 03:08:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-15 03:08:34,667 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-15 03:08:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-15 03:08:34,668 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-15 03:08:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-15 03:08:34,669 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-15 03:08:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-15 03:08:34,670 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-15 03:08:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-15 03:08:34,671 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-15 03:08:34,672 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-15 03:08:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-10-15 03:08:34,673 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-15 03:08:34,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-15 03:08:34,675 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-15 03:08:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-15 03:08:34,676 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-15 03:08:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-15 03:08:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-10-15 03:08:34,677 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-15 03:08:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-15 03:08:34,679 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-10-15 03:08:34,680 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-15 03:08:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-15 03:08:34,681 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-15 03:08:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-15 03:08:34,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:08:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-15 03:08:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:08:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:08:34,683 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:08:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:08:34,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:08:34,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:08:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:08:34,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:08:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:08:34,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:08:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:08:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:08:34,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:08:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:08:34,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:08:34,690 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:08:34,690 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 03:08:34,690 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-15 03:08:34,691 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-15 03:08:34,692 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-15 03:08:34,693 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-15 03:08:34,694 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-15 03:08:34,696 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-15 03:08:34,696 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-15 03:08:34,696 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-15 03:08:34,697 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-15 03:08:34,697 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-15 03:08:34,698 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-15 03:08:34,698 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:08:34,698 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-15 03:08:34,699 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:08:34,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-15 03:08:34,701 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-15 03:08:34,702 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:08:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:08:34,703 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:08:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:08:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:08:34,704 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-15 03:08:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-15 03:08:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:08:34,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:08:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:08:34,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:08:41,603 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:08:41,604 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-15 03:08:41,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:08:41 BoogieIcfgContainer [2019-10-15 03:08:41,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:08:41,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:08:41,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:08:41,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:08:41,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:08:32" (1/3) ... [2019-10-15 03:08:41,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c336e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:08:41, skipping insertion in model container [2019-10-15 03:08:41,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:08:34" (2/3) ... [2019-10-15 03:08:41,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c336e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:08:41, skipping insertion in model container [2019-10-15 03:08:41,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:08:41" (3/3) ... [2019-10-15 03:08:41,615 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product29.cil.c [2019-10-15 03:08:41,624 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:08:41,635 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:08:41,646 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:08:41,680 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:08:41,680 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:08:41,680 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:08:41,680 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:08:41,680 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:08:41,681 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:08:41,681 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:08:41,681 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:08:41,716 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states. [2019-10-15 03:08:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-10-15 03:08:41,738 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:41,740 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:41,742 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:41,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:41,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1929205002, now seen corresponding path program 1 times [2019-10-15 03:08:41,759 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:41,759 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81788309] [2019-10-15 03:08:41,759 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:41,760 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:41,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:08:42,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81788309] [2019-10-15 03:08:42,739 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:42,740 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:08:42,740 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113134133] [2019-10-15 03:08:42,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:08:42,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:42,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:08:42,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:08:42,776 INFO L87 Difference]: Start difference. First operand 574 states. Second operand 9 states. [2019-10-15 03:08:51,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:51,237 INFO L93 Difference]: Finished difference Result 1415 states and 2165 transitions. [2019-10-15 03:08:51,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-15 03:08:51,239 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2019-10-15 03:08:51,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:51,270 INFO L225 Difference]: With dead ends: 1415 [2019-10-15 03:08:51,270 INFO L226 Difference]: Without dead ends: 989 [2019-10-15 03:08:51,282 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2019-10-15 03:08:51,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2019-10-15 03:08:51,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 957. [2019-10-15 03:08:51,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 957 states. [2019-10-15 03:08:51,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1460 transitions. [2019-10-15 03:08:51,532 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1460 transitions. Word has length 106 [2019-10-15 03:08:51,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:51,534 INFO L462 AbstractCegarLoop]: Abstraction has 957 states and 1460 transitions. [2019-10-15 03:08:51,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:08:51,534 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1460 transitions. [2019-10-15 03:08:51,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-15 03:08:51,542 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:51,542 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:51,543 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:51,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:51,543 INFO L82 PathProgramCache]: Analyzing trace with hash 184369952, now seen corresponding path program 1 times [2019-10-15 03:08:51,544 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:51,544 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152407306] [2019-10-15 03:08:51,544 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:51,545 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:51,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:08:51,932 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152407306] [2019-10-15 03:08:51,932 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:51,933 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:08:51,933 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499051882] [2019-10-15 03:08:51,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:08:51,935 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:51,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:08:51,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:08:51,936 INFO L87 Difference]: Start difference. First operand 957 states and 1460 transitions. Second operand 7 states. [2019-10-15 03:08:52,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:52,064 INFO L93 Difference]: Finished difference Result 1530 states and 2349 transitions. [2019-10-15 03:08:52,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:08:52,064 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 111 [2019-10-15 03:08:52,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:52,075 INFO L225 Difference]: With dead ends: 1530 [2019-10-15 03:08:52,075 INFO L226 Difference]: Without dead ends: 994 [2019-10-15 03:08:52,081 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:08:52,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2019-10-15 03:08:52,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 978. [2019-10-15 03:08:52,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2019-10-15 03:08:52,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1490 transitions. [2019-10-15 03:08:52,170 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1490 transitions. Word has length 111 [2019-10-15 03:08:52,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:52,171 INFO L462 AbstractCegarLoop]: Abstraction has 978 states and 1490 transitions. [2019-10-15 03:08:52,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:08:52,172 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1490 transitions. [2019-10-15 03:08:52,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-15 03:08:52,176 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:52,176 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:52,176 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:52,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:52,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1325589972, now seen corresponding path program 1 times [2019-10-15 03:08:52,177 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:52,177 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99102669] [2019-10-15 03:08:52,177 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:52,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:52,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:08:52,443 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99102669] [2019-10-15 03:08:52,443 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:52,444 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:08:52,444 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926676592] [2019-10-15 03:08:52,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:08:52,445 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:52,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:08:52,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:08:52,446 INFO L87 Difference]: Start difference. First operand 978 states and 1490 transitions. Second operand 7 states. [2019-10-15 03:08:52,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:52,593 INFO L93 Difference]: Finished difference Result 1559 states and 2387 transitions. [2019-10-15 03:08:52,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:08:52,594 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2019-10-15 03:08:52,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:52,607 INFO L225 Difference]: With dead ends: 1559 [2019-10-15 03:08:52,607 INFO L226 Difference]: Without dead ends: 1009 [2019-10-15 03:08:52,613 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:08:52,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2019-10-15 03:08:52,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 981. [2019-10-15 03:08:52,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 981 states. [2019-10-15 03:08:52,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1493 transitions. [2019-10-15 03:08:52,698 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1493 transitions. Word has length 112 [2019-10-15 03:08:52,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:52,699 INFO L462 AbstractCegarLoop]: Abstraction has 981 states and 1493 transitions. [2019-10-15 03:08:52,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:08:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1493 transitions. [2019-10-15 03:08:52,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-10-15 03:08:52,704 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:52,704 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:52,704 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:52,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:52,705 INFO L82 PathProgramCache]: Analyzing trace with hash 141031500, now seen corresponding path program 1 times [2019-10-15 03:08:52,705 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:52,705 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369707327] [2019-10-15 03:08:52,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:52,706 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:52,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:52,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:08:52,947 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369707327] [2019-10-15 03:08:52,947 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:52,947 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:08:52,948 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573682181] [2019-10-15 03:08:52,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:08:52,949 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:52,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:08:52,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:08:52,950 INFO L87 Difference]: Start difference. First operand 981 states and 1493 transitions. Second operand 7 states. [2019-10-15 03:08:53,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:53,148 INFO L93 Difference]: Finished difference Result 1564 states and 2392 transitions. [2019-10-15 03:08:53,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:08:53,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 112 [2019-10-15 03:08:53,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:53,167 INFO L225 Difference]: With dead ends: 1564 [2019-10-15 03:08:53,167 INFO L226 Difference]: Without dead ends: 1012 [2019-10-15 03:08:53,172 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:08:53,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2019-10-15 03:08:53,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 984. [2019-10-15 03:08:53,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 984 states. [2019-10-15 03:08:53,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1496 transitions. [2019-10-15 03:08:53,243 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1496 transitions. Word has length 112 [2019-10-15 03:08:53,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:53,244 INFO L462 AbstractCegarLoop]: Abstraction has 984 states and 1496 transitions. [2019-10-15 03:08:53,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:08:53,245 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1496 transitions. [2019-10-15 03:08:53,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-15 03:08:53,249 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:53,250 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:53,250 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:53,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:53,250 INFO L82 PathProgramCache]: Analyzing trace with hash 631146580, now seen corresponding path program 1 times [2019-10-15 03:08:53,251 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:53,251 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925645852] [2019-10-15 03:08:53,252 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:53,252 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:53,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:53,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:08:53,617 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925645852] [2019-10-15 03:08:53,618 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:53,618 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:08:53,618 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885444394] [2019-10-15 03:08:53,619 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:08:53,620 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:53,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:08:53,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:08:53,621 INFO L87 Difference]: Start difference. First operand 984 states and 1496 transitions. Second operand 7 states. [2019-10-15 03:08:59,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:08:59,174 INFO L93 Difference]: Finished difference Result 2108 states and 3225 transitions. [2019-10-15 03:08:59,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:08:59,175 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2019-10-15 03:08:59,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:08:59,187 INFO L225 Difference]: With dead ends: 2108 [2019-10-15 03:08:59,187 INFO L226 Difference]: Without dead ends: 1429 [2019-10-15 03:08:59,192 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:08:59,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2019-10-15 03:08:59,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1379. [2019-10-15 03:08:59,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1379 states. [2019-10-15 03:08:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2057 transitions. [2019-10-15 03:08:59,304 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2057 transitions. Word has length 116 [2019-10-15 03:08:59,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:08:59,307 INFO L462 AbstractCegarLoop]: Abstraction has 1379 states and 2057 transitions. [2019-10-15 03:08:59,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:08:59,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2057 transitions. [2019-10-15 03:08:59,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-15 03:08:59,316 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:08:59,316 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:08:59,316 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:08:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:08:59,317 INFO L82 PathProgramCache]: Analyzing trace with hash 716619123, now seen corresponding path program 1 times [2019-10-15 03:08:59,317 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:08:59,318 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812438041] [2019-10-15 03:08:59,318 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:59,318 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:08:59,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:08:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:08:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:08:59,632 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812438041] [2019-10-15 03:08:59,633 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:08:59,633 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:08:59,633 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439750701] [2019-10-15 03:08:59,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:08:59,634 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:08:59,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:08:59,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:08:59,635 INFO L87 Difference]: Start difference. First operand 1379 states and 2057 transitions. Second operand 9 states. [2019-10-15 03:09:00,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:09:00,102 INFO L93 Difference]: Finished difference Result 2681 states and 4102 transitions. [2019-10-15 03:09:00,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:09:00,102 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 118 [2019-10-15 03:09:00,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:09:00,117 INFO L225 Difference]: With dead ends: 2681 [2019-10-15 03:09:00,117 INFO L226 Difference]: Without dead ends: 1583 [2019-10-15 03:09:00,127 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:09:00,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2019-10-15 03:09:00,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1583. [2019-10-15 03:09:00,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1583 states. [2019-10-15 03:09:00,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2361 transitions. [2019-10-15 03:09:00,224 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2361 transitions. Word has length 118 [2019-10-15 03:09:00,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:09:00,224 INFO L462 AbstractCegarLoop]: Abstraction has 1583 states and 2361 transitions. [2019-10-15 03:09:00,224 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:09:00,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2361 transitions. [2019-10-15 03:09:00,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-15 03:09:00,229 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:09:00,230 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:09:00,230 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:09:00,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:09:00,231 INFO L82 PathProgramCache]: Analyzing trace with hash -164315477, now seen corresponding path program 1 times [2019-10-15 03:09:00,231 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:09:00,231 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928170758] [2019-10-15 03:09:00,231 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:00,232 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:00,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:09:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:09:00,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:09:00,470 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928170758] [2019-10-15 03:09:00,470 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:09:00,470 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 03:09:00,471 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705717664] [2019-10-15 03:09:00,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 03:09:00,472 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:09:00,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 03:09:00,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 03:09:00,472 INFO L87 Difference]: Start difference. First operand 1583 states and 2361 transitions. Second operand 6 states. [2019-10-15 03:09:05,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:09:05,962 INFO L93 Difference]: Finished difference Result 6480 states and 10045 transitions. [2019-10-15 03:09:05,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 03:09:05,963 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2019-10-15 03:09:05,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:09:06,003 INFO L225 Difference]: With dead ends: 6480 [2019-10-15 03:09:06,003 INFO L226 Difference]: Without dead ends: 4940 [2019-10-15 03:09:06,016 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:09:06,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4940 states. [2019-10-15 03:09:06,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4940 to 4565. [2019-10-15 03:09:06,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4565 states. [2019-10-15 03:09:06,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4565 states to 4565 states and 6964 transitions. [2019-10-15 03:09:06,270 INFO L78 Accepts]: Start accepts. Automaton has 4565 states and 6964 transitions. Word has length 119 [2019-10-15 03:09:06,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:09:06,272 INFO L462 AbstractCegarLoop]: Abstraction has 4565 states and 6964 transitions. [2019-10-15 03:09:06,272 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 03:09:06,272 INFO L276 IsEmpty]: Start isEmpty. Operand 4565 states and 6964 transitions. [2019-10-15 03:09:06,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-15 03:09:06,275 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:09:06,276 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:09:06,276 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:09:06,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:09:06,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1441268341, now seen corresponding path program 1 times [2019-10-15 03:09:06,277 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:09:06,277 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729272596] [2019-10-15 03:09:06,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:06,277 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:09:06,277 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:09:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:09:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:09:06,524 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729272596] [2019-10-15 03:09:06,524 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:09:06,524 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:09:06,525 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761694026] [2019-10-15 03:09:06,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:09:06,526 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:09:06,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:09:06,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:09:06,527 INFO L87 Difference]: Start difference. First operand 4565 states and 6964 transitions. Second operand 7 states.