/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 -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:32:46,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:32:46,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:32:46,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:32:46,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:32:46,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:32:46,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:32:46,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:32:46,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:32:46,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:32:46,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:32:46,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:32:46,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:32:46,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:32:46,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:32:46,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:32:46,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:32:46,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:32:46,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:32:46,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:32:46,470 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:32:46,472 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:32:46,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:32:46,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:32:46,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:32:46,476 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:32:46,476 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:32:46,477 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:32:46,477 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:32:46,478 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:32:46,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:32:46,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:32:46,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:32:46,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:32:46,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:32:46,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:32:46,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:32:46,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:32:46,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:32:46,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:32:46,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:32:46,485 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 [2019-11-06 21:32:46,499 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:32:46,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:32:46,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:32:46,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:32:46,501 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:32:46,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:32:46,501 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:32:46,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:32:46,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:32:46,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:32:46,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:32:46,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:32:46,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:32:46,502 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:32:46,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:32:46,503 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:32:46,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:32:46,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:32:46,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:32:46,503 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:32:46,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:32:46,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:32:46,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:32:46,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:32:46,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:32:46,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:32:46,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:32:46,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:32:46,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:32:46,854 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:32:46,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:32:46,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:32:46,878 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:32:46,878 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:32:46,879 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c [2019-11-06 21:32:46,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9a429a7/7681d1239a7244a6930b023f06816858/FLAGfef135334 [2019-11-06 21:32:47,561 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:32:47,562 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product26.cil.c [2019-11-06 21:32:47,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9a429a7/7681d1239a7244a6930b023f06816858/FLAGfef135334 [2019-11-06 21:32:47,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e9a429a7/7681d1239a7244a6930b023f06816858 [2019-11-06 21:32:47,769 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:32:47,771 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:32:47,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:32:47,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:32:47,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:32:47,778 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:32:47" (1/1) ... [2019-11-06 21:32:47,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7436a562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:47, skipping insertion in model container [2019-11-06 21:32:47,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:32:47" (1/1) ... [2019-11-06 21:32:47,789 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:32:47,870 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:32:48,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:32:48,727 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:32:48,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:32:48,991 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:32:48,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:48 WrapperNode [2019-11-06 21:32:48,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:32:48,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:32:48,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:32:48,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:32:49,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:48" (1/1) ... [2019-11-06 21:32:49,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:48" (1/1) ... [2019-11-06 21:32:49,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:48" (1/1) ... [2019-11-06 21:32:49,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:48" (1/1) ... [2019-11-06 21:32:49,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:48" (1/1) ... [2019-11-06 21:32:49,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:48" (1/1) ... [2019-11-06 21:32:49,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:48" (1/1) ... [2019-11-06 21:32:49,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:32:49,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:32:49,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:32:49,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:32:49,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:48" (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 [2019-11-06 21:32:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:32:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:32:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 21:32:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-11-06 21:32:49,268 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-11-06 21:32:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-11-06 21:32:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-11-06 21:32:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-11-06 21:32:49,269 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-11-06 21:32:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-11-06 21:32:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-11-06 21:32:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-11-06 21:32:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-11-06 21:32:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-11-06 21:32:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-11-06 21:32:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-11-06 21:32:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-11-06 21:32:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 21:32:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-11-06 21:32:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:32:49,272 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-11-06 21:32:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-11-06 21:32:49,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-11-06 21:32:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-11-06 21:32:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-11-06 21:32:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-11-06 21:32:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-11-06 21:32:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-11-06 21:32:49,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-11-06 21:32:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-11-06 21:32:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-11-06 21:32:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-11-06 21:32:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-11-06 21:32:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-11-06 21:32:49,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-11-06 21:32:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-11-06 21:32:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-11-06 21:32:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-11-06 21:32:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-11-06 21:32:49,276 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-11-06 21:32:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-11-06 21:32:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-11-06 21:32:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-11-06 21:32:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2019-11-06 21:32:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-11-06 21:32:49,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__empty [2019-11-06 21:32:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-11-06 21:32:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-11-06 21:32:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-11-06 21:32:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-11-06 21:32:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-11-06 21:32:49,278 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 21:32:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 21:32:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 21:32:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 21:32:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 21:32:49,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 21:32:49,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 21:32:49,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 21:32:49,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 21:32:49,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 21:32:49,280 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 21:32:49,281 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-11-06 21:32:49,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-11-06 21:32:49,281 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-11-06 21:32:49,281 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-11-06 21:32:49,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-11-06 21:32:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-11-06 21:32:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-11-06 21:32:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-11-06 21:32:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-11-06 21:32:49,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-11-06 21:32:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-11-06 21:32:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-11-06 21:32:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 21:32:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-11-06 21:32:49,283 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-11-06 21:32:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:32:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:32:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-06 21:32:49,284 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-11-06 21:32:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-11-06 21:32:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-11-06 21:32:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-11-06 21:32:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-11-06 21:32:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-11-06 21:32:49,285 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-11-06 21:32:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-11-06 21:32:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-11-06 21:32:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-11-06 21:32:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-11-06 21:32:49,286 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-11-06 21:32:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-11-06 21:32:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-11-06 21:32:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-11-06 21:32:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-11-06 21:32:49,287 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-11-06 21:32:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-11-06 21:32:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-11-06 21:32:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-11-06 21:32:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-11-06 21:32:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 21:32:49,288 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-11-06 21:32:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-11-06 21:32:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 21:32:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-11-06 21:32:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 21:32:49,289 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 21:32:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 21:32:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:32:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 21:32:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-11-06 21:32:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-11-06 21:32:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-11-06 21:32:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-11-06 21:32:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-11-06 21:32:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-11-06 21:32:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-11-06 21:32:49,291 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-11-06 21:32:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-11-06 21:32:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-11-06 21:32:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-11-06 21:32:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-11-06 21:32:49,292 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-11-06 21:32:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-11-06 21:32:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-11-06 21:32:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-11-06 21:32:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-11-06 21:32:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-11-06 21:32:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-11-06 21:32:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-11-06 21:32:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-11-06 21:32:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-11-06 21:32:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-11-06 21:32:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-11-06 21:32:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-11-06 21:32:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-11-06 21:32:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-11-06 21:32:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-11-06 21:32:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-11-06 21:32:49,295 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2019-11-06 21:32:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-11-06 21:32:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__empty [2019-11-06 21:32:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:32:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-11-06 21:32:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 21:32:49,296 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:32:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:32:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 21:32:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:32:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:32:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:32:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:32:49,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 21:32:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:32:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 21:32:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 21:32:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:32:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 21:32:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 21:32:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 21:32:49,298 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 21:32:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-11-06 21:32:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 21:32:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-11-06 21:32:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-11-06 21:32:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:32:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:32:49,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:32:51,548 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:32:51,549 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-06 21:32:51,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:32:51 BoogieIcfgContainer [2019-11-06 21:32:51,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:32:51,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:32:51,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:32:51,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:32:51,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:32:47" (1/3) ... [2019-11-06 21:32:51,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5aa7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:32:51, skipping insertion in model container [2019-11-06 21:32:51,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:32:48" (2/3) ... [2019-11-06 21:32:51,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e5aa7a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:32:51, skipping insertion in model container [2019-11-06 21:32:51,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:32:51" (3/3) ... [2019-11-06 21:32:51,566 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product26.cil.c [2019-11-06 21:32:51,577 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:32:51,591 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:32:51,603 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:32:51,649 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:32:51,649 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:32:51,649 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:32:51,649 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:32:51,649 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:32:51,650 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:32:51,650 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:32:51,650 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:32:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2019-11-06 21:32:51,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-11-06 21:32:51,726 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:32:51,727 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:32:51,730 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:32:51,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:32:51,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1815299235, now seen corresponding path program 1 times [2019-11-06 21:32:51,746 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:32:51,746 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870780620] [2019-11-06 21:32:51,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:32:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,384 WARN L191 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2019-11-06 21:32:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,691 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-06 21:32:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,883 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-11-06 21:32:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:32:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:32:54,075 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870780620] [2019-11-06 21:32:54,075 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:32:54,076 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 21:32:54,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199668799] [2019-11-06 21:32:54,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:32:54,082 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:32:54,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:32:54,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:32:54,098 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 9 states. [2019-11-06 21:32:55,778 WARN L191 SmtUtils]: Spent 879.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2019-11-06 21:32:56,674 WARN L191 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2019-11-06 21:32:58,359 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-11-06 21:33:20,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:33:20,474 INFO L93 Difference]: Finished difference Result 1648 states and 2874 transitions. [2019-11-06 21:33:20,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-06 21:33:20,481 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2019-11-06 21:33:20,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:33:20,516 INFO L225 Difference]: With dead ends: 1648 [2019-11-06 21:33:20,516 INFO L226 Difference]: Without dead ends: 1045 [2019-11-06 21:33:20,527 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2019-11-06 21:33:20,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2019-11-06 21:33:20,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 607. [2019-11-06 21:33:20,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 607 states. [2019-11-06 21:33:20,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 973 transitions. [2019-11-06 21:33:20,795 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 973 transitions. Word has length 85 [2019-11-06 21:33:20,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:33:20,796 INFO L462 AbstractCegarLoop]: Abstraction has 607 states and 973 transitions. [2019-11-06 21:33:20,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 21:33:20,796 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 973 transitions. [2019-11-06 21:33:20,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-06 21:33:20,802 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:33:20,802 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:33:20,802 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:33:20,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:33:20,803 INFO L82 PathProgramCache]: Analyzing trace with hash -1195495049, now seen corresponding path program 1 times [2019-11-06 21:33:20,803 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:33:20,803 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242783031] [2019-11-06 21:33:20,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:33:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:21,710 WARN L191 SmtUtils]: Spent 790.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2019-11-06 21:33:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:21,980 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-11-06 21:33:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:22,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:33:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:33:22,334 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242783031] [2019-11-06 21:33:22,335 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:33:22,335 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 21:33:22,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709748609] [2019-11-06 21:33:22,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:33:22,347 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:33:22,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:33:22,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-06 21:33:22,354 INFO L87 Difference]: Start difference. First operand 607 states and 973 transitions. Second operand 9 states. [2019-11-06 21:33:23,931 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2019-11-06 21:33:24,791 WARN L191 SmtUtils]: Spent 834.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2019-11-06 21:33:26,136 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 121