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_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:20:45,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:20:45,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:20:45,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:20:45,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:20:45,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:20:45,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:20:45,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:20:45,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:20:45,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:20:45,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:20:45,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:20:45,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:20:45,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:20:45,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:20:45,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:20:45,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:20:45,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:20:45,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:20:45,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:20:45,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:20:45,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:20:45,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:20:45,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:20:45,669 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:20:45,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:20:45,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:20:45,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:20:45,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:20:45,673 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:20:45,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:20:45,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:20:45,675 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:20:45,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:20:45,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:20:45,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:20:45,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:20:45,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:20:45,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:20:45,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:20:45,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:20:45,688 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 [2019-10-14 23:20:45,710 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:20:45,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:20:45,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:20:45,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:20:45,713 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:20:45,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:20:45,713 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:20:45,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:20:45,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:20:45,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:20:45,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:20:45,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:20:45,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:20:45,715 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:20:45,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:20:45,715 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:20:45,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:20:45,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:20:45,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:20:45,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:20:45,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:20:45,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:20:45,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:20:45,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:20:45,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:20:45,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:20:45,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:20:45,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:20:45,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:20:46,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:20:46,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:20:46,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:20:46,057 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:20:46,057 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:20:46,058 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product21.cil.c [2019-10-14 23:20:46,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfd665c5/2873dd62c05b45f8a9973454285c4ae9/FLAGeab959472 [2019-10-14 23:20:46,821 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:20:46,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product21.cil.c [2019-10-14 23:20:46,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfd665c5/2873dd62c05b45f8a9973454285c4ae9/FLAGeab959472 [2019-10-14 23:20:47,010 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dfd665c5/2873dd62c05b45f8a9973454285c4ae9 [2019-10-14 23:20:47,020 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:20:47,021 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:20:47,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:20:47,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:20:47,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:20:47,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:20:47" (1/1) ... [2019-10-14 23:20:47,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60aa197e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47, skipping insertion in model container [2019-10-14 23:20:47,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:20:47" (1/1) ... [2019-10-14 23:20:47,034 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:20:47,110 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:20:47,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:20:47,820 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:20:47,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:20:47,974 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:20:47,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47 WrapperNode [2019-10-14 23:20:47,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:20:47,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:20:47,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:20:47,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:20:47,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47" (1/1) ... [2019-10-14 23:20:47,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47" (1/1) ... [2019-10-14 23:20:48,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47" (1/1) ... [2019-10-14 23:20:48,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47" (1/1) ... [2019-10-14 23:20:48,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47" (1/1) ... [2019-10-14 23:20:48,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47" (1/1) ... [2019-10-14 23:20:48,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47" (1/1) ... [2019-10-14 23:20:48,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:20:48,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:20:48,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:20:48,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:20:48,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47" (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 [2019-10-14 23:20:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:20:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:20:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:20:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:20:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:20:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:20:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:20:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:20:48,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:20:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:20:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-14 23:20:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-14 23:20:48,234 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-14 23:20:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-14 23:20:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-14 23:20:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-14 23:20:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-14 23:20:48,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-14 23:20:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-14 23:20:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-14 23:20:48,236 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-14 23:20:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-14 23:20:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-14 23:20:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-14 23:20:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-14 23:20:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-14 23:20:48,237 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-14 23:20:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-14 23:20:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:20:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-14 23:20:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-14 23:20:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-14 23:20:48,238 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:20:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-14 23:20:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:20:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:20:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:20:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:20:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-14 23:20:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-14 23:20:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-14 23:20:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:20:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:20:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-14 23:20:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-14 23:20:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:20:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-14 23:20:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-14 23:20:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-14 23:20:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-14 23:20:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-14 23:20:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-14 23:20:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-14 23:20:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-14 23:20:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-14 23:20:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-14 23:20:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-14 23:20:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-14 23:20:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-14 23:20:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-14 23:20:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-14 23:20:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-14 23:20:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2019-10-14 23:20:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-14 23:20:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-14 23:20:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-14 23:20:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-14 23:20:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-14 23:20:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-14 23:20:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-14 23:20:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:20:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-14 23:20:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-14 23:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:20:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:20:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:20:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:20:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:20:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:20:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:20:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:20:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:20:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:20:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:20:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:20:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:20:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:20:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:20:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:20:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:20:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-14 23:20:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-14 23:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-14 23:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-14 23:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-14 23:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-14 23:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-14 23:20:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-14 23:20:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-14 23:20:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:20:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-14 23:20:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-14 23:20:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-14 23:20:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-14 23:20:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-14 23:20:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-14 23:20:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-14 23:20:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-14 23:20:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-14 23:20:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-14 23:20:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-14 23:20:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-14 23:20:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-14 23:20:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-14 23:20:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-14 23:20:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-14 23:20:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:20:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-14 23:20:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-14 23:20:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-14 23:20:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:20:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-14 23:20:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:20:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-14 23:20:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-14 23:20:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-14 23:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-14 23:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:20:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-14 23:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-14 23:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-14 23:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-14 23:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:20:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-14 23:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-14 23:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-14 23:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-14 23:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-14 23:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-14 23:20:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-14 23:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-14 23:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-14 23:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-14 23:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-14 23:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2019-10-14 23:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-14 23:20:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-14 23:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2019-10-14 23:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-14 23:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-14 23:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-14 23:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-14 23:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:20:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:20:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:20:50,513 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:20:50,514 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-14 23:20:50,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:20:50 BoogieIcfgContainer [2019-10-14 23:20:50,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:20:50,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:20:50,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:20:50,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:20:50,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:20:47" (1/3) ... [2019-10-14 23:20:50,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb82829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:20:50, skipping insertion in model container [2019-10-14 23:20:50,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:20:47" (2/3) ... [2019-10-14 23:20:50,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fb82829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:20:50, skipping insertion in model container [2019-10-14 23:20:50,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:20:50" (3/3) ... [2019-10-14 23:20:50,524 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product21.cil.c [2019-10-14 23:20:50,533 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:20:50,543 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:20:50,554 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:20:50,597 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:20:50,598 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:20:50,598 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:20:50,598 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:20:50,598 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:20:50,598 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:20:50,598 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:20:50,598 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:20:50,646 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states. [2019-10-14 23:20:50,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2019-10-14 23:20:50,675 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:20:50,676 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:20:50,678 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:20:50,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:20:50,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1453471950, now seen corresponding path program 1 times [2019-10-14 23:20:50,693 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:20:50,693 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963998779] [2019-10-14 23:20:50,693 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:50,694 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:20:50,694 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:20:50,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,200 WARN L191 SmtUtils]: Spent 960.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2019-10-14 23:20:52,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,482 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-14 23:20:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,659 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-14 23:20:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:53,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:20:53,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:20:53,268 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963998779] [2019-10-14 23:20:53,269 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:20:53,269 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-14 23:20:53,269 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401075137] [2019-10-14 23:20:53,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-14 23:20:53,276 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:20:53,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-14 23:20:53,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:20:53,294 INFO L87 Difference]: Start difference. First operand 773 states. Second operand 16 states. [2019-10-14 23:20:55,708 WARN L191 SmtUtils]: Spent 812.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-10-14 23:20:56,535 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2019-10-14 23:20:59,379 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-10-14 23:21:00,292 WARN L191 SmtUtils]: Spent 766.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-10-14 23:21:02,294 WARN L191 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 392 [2019-10-14 23:21:03,717 WARN L191 SmtUtils]: Spent 780.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2019-10-14 23:21:04,855 WARN L191 SmtUtils]: Spent 792.00 ms on a formula simplification that was a NOOP. DAG size: 394 [2019-10-14 23:21:06,266 WARN L191 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-10-14 23:21:06,511 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:21:07,570 WARN L191 SmtUtils]: Spent 733.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-10-14 23:21:07,727 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-10-14 23:21:10,459 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-14 23:21:16,637 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-10-14 23:21:27,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:21:27,862 INFO L93 Difference]: Finished difference Result 1779 states and 3170 transitions. [2019-10-14 23:21:27,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-14 23:21:27,864 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 124 [2019-10-14 23:21:27,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:21:27,900 INFO L225 Difference]: With dead ends: 1779 [2019-10-14 23:21:27,900 INFO L226 Difference]: Without dead ends: 1155 [2019-10-14 23:21:27,911 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=279, Invalid=911, Unknown=0, NotChecked=0, Total=1190 [2019-10-14 23:21:27,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2019-10-14 23:21:28,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 620. [2019-10-14 23:21:28,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 620 states. [2019-10-14 23:21:28,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 990 transitions. [2019-10-14 23:21:28,218 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 990 transitions. Word has length 124 [2019-10-14 23:21:28,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:21:28,219 INFO L462 AbstractCegarLoop]: Abstraction has 620 states and 990 transitions. [2019-10-14 23:21:28,219 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-14 23:21:28,219 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 990 transitions. [2019-10-14 23:21:28,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-14 23:21:28,230 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:21:28,230 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:21:28,231 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:21:28,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:21:28,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1369097950, now seen corresponding path program 1 times [2019-10-14 23:21:28,231 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:21:28,231 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967106366] [2019-10-14 23:21:28,232 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:21:28,232 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:21:28,232 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:21:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat