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_spec14_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:20:10,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:20:10,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:20:10,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:20:10,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:20:10,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:20:10,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:20:10,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:20:10,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:20:10,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:20:10,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:20:10,029 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:20:10,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:20:10,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:20:10,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:20:10,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:20:10,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:20:10,034 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:20:10,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:20:10,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:20:10,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:20:10,040 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:20:10,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:20:10,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:20:10,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:20:10,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:20:10,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:20:10,045 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:20:10,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:20:10,046 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:20:10,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:20:10,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:20:10,048 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:20:10,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:20:10,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:20:10,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:20:10,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:20:10,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:20:10,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:20:10,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:20:10,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:20:10,054 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 [2019-10-13 19:20:10,068 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:20:10,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:20:10,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:20:10,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:20:10,070 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:20:10,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:20:10,071 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:20:10,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:20:10,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:20:10,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:20:10,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:20:10,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:20:10,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:20:10,072 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:20:10,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:20:10,072 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:20:10,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:20:10,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:20:10,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:20:10,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:20:10,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:20:10,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:20:10,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:20:10,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:20:10,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:20:10,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:20:10,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:20:10,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:20:10,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:20:10,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:20:10,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:20:10,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:20:10,377 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:20:10,377 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:20:10,378 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c [2019-10-13 19:20:10,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/215e0b39a/c89c9ea54ad6484b85ed69f03d6b95a7/FLAG2aa454dc8 [2019-10-13 19:20:11,039 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:20:11,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec14_product03.cil.c [2019-10-13 19:20:11,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/215e0b39a/c89c9ea54ad6484b85ed69f03d6b95a7/FLAG2aa454dc8 [2019-10-13 19:20:11,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/215e0b39a/c89c9ea54ad6484b85ed69f03d6b95a7 [2019-10-13 19:20:11,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:20:11,263 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:20:11,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:20:11,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:20:11,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:20:11,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:11" (1/1) ... [2019-10-13 19:20:11,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a48b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:11, skipping insertion in model container [2019-10-13 19:20:11,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:20:11" (1/1) ... [2019-10-13 19:20:11,281 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:20:11,366 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:20:12,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:20:12,136 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:20:12,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:20:12,323 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:20:12,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:12 WrapperNode [2019-10-13 19:20:12,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:20:12,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:20:12,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:20:12,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:20:12,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:12" (1/1) ... [2019-10-13 19:20:12,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:12" (1/1) ... [2019-10-13 19:20:12,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:12" (1/1) ... [2019-10-13 19:20:12,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:12" (1/1) ... [2019-10-13 19:20:12,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:12" (1/1) ... [2019-10-13 19:20:12,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:12" (1/1) ... [2019-10-13 19:20:12,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:12" (1/1) ... [2019-10-13 19:20:12,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:20:12,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:20:12,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:20:12,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:20:12,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:12" (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 [2019-10-13 19:20:12,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:20:12,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:20:12,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:20:12,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 19:20:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 19:20:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 19:20:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 19:20:12,602 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 19:20:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 19:20:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 19:20:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 19:20:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 19:20:12,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 19:20:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 19:20:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 19:20:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 19:20:12,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2019-10-13 19:20:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:20:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 19:20:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 19:20:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 19:20:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 19:20:12,607 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 19:20:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 19:20:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 19:20:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 19:20:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:20:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 19:20:12,608 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 19:20:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 19:20:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:20:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 19:20:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:20:12,609 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:20:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:20:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:20:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:20:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:20:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:20:12,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:20:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:20:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:20:12,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:20:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:20:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:20:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 19:20:12,612 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 19:20:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 19:20:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 19:20:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 19:20:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 19:20:12,613 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 19:20:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 19:20:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 19:20:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 19:20:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 19:20:12,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 19:20:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 19:20:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 19:20:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__base [2019-10-13 19:20:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 19:20:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 19:20:12,615 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 19:20:12,616 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-13 19:20:12,616 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 19:20:12,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 19:20:12,616 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 19:20:12,617 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:20:12,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 19:20:12,617 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 19:20:12,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-10-13 19:20:12,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-10-13 19:20:12,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:20:12,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:20:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:20:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 19:20:12,619 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 19:20:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 19:20:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 19:20:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:20:12,620 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 19:20:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 19:20:12,621 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 19:20:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 19:20:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 19:20:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 19:20:12,622 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 19:20:12,623 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 19:20:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 19:20:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 19:20:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 19:20:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 19:20:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 19:20:12,625 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:20:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 19:20:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 19:20:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-10-13 19:20:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-10-13 19:20:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2019-10-13 19:20:12,626 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 19:20:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 19:20:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 19:20:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:20:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:20:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 19:20:12,627 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 19:20:12,628 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 19:20:12,628 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 19:20:12,628 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 19:20:12,628 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 19:20:12,628 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 19:20:12,629 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 19:20:12,629 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 19:20:12,629 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 19:20:12,629 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:20:12,629 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 19:20:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:20:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:20:12,630 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:20:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:20:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:20:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:20:12,631 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:20:12,632 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:20:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:20:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:20:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:20:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:20:12,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:20:12,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:20:12,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:20:12,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:20:12,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:20:12,635 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:20:12,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:20:12,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:20:12,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:20:12,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:20:12,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:20:12,636 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:20:12,639 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:20:12,640 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 19:20:12,640 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 19:20:12,641 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 19:20:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 19:20:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 19:20:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 19:20:12,647 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 19:20:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 19:20:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 19:20:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__base [2019-10-13 19:20:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 19:20:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 19:20:12,648 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2019-10-13 19:20:12,649 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 19:20:12,649 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 19:20:12,649 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 19:20:12,650 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 19:20:12,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:20:12,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:20:12,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:20:15,424 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:20:15,424 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 19:20:15,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:20:15 BoogieIcfgContainer [2019-10-13 19:20:15,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:20:15,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:20:15,429 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:20:15,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:20:15,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:20:11" (1/3) ... [2019-10-13 19:20:15,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629d53f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:20:15, skipping insertion in model container [2019-10-13 19:20:15,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:20:12" (2/3) ... [2019-10-13 19:20:15,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629d53f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:20:15, skipping insertion in model container [2019-10-13 19:20:15,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:20:15" (3/3) ... [2019-10-13 19:20:15,436 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product03.cil.c [2019-10-13 19:20:15,447 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:20:15,457 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:20:15,470 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:20:15,511 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:20:15,511 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:20:15,512 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:20:15,512 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:20:15,512 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:20:15,512 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:20:15,512 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:20:15,512 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:20:15,556 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states. [2019-10-13 19:20:15,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-13 19:20:15,596 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:20:15,597 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:20:15,599 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:20:15,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:20:15,605 INFO L82 PathProgramCache]: Analyzing trace with hash 2136153508, now seen corresponding path program 1 times [2019-10-13 19:20:15,614 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:20:15,615 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106666122] [2019-10-13 19:20:15,615 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:15,615 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:15,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:20:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,155 WARN L191 SmtUtils]: Spent 987.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2019-10-13 19:20:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,373 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-13 19:20:17,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:17,685 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 19:20:17,686 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106666122] [2019-10-13 19:20:17,688 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:20:17,688 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:20:17,688 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619925264] [2019-10-13 19:20:17,695 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:20:17,696 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:20:17,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:20:17,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:20:17,715 INFO L87 Difference]: Start difference. First operand 714 states. Second operand 8 states. [2019-10-13 19:20:19,482 WARN L191 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-13 19:20:20,304 WARN L191 SmtUtils]: Spent 803.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2019-10-13 19:20:22,104 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-13 19:20:33,142 WARN L191 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-13 19:20:39,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:20:39,600 INFO L93 Difference]: Finished difference Result 1454 states and 2546 transitions. [2019-10-13 19:20:39,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:20:39,602 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 135 [2019-10-13 19:20:39,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:20:39,632 INFO L225 Difference]: With dead ends: 1454 [2019-10-13 19:20:39,632 INFO L226 Difference]: Without dead ends: 846 [2019-10-13 19:20:39,649 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:20:39,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2019-10-13 19:20:39,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 566. [2019-10-13 19:20:39,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 566 states. [2019-10-13 19:20:39,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 900 transitions. [2019-10-13 19:20:39,906 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 900 transitions. Word has length 135 [2019-10-13 19:20:39,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:20:39,907 INFO L462 AbstractCegarLoop]: Abstraction has 566 states and 900 transitions. [2019-10-13 19:20:39,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:20:39,907 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 900 transitions. [2019-10-13 19:20:39,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-13 19:20:39,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:20:39,914 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:20:39,915 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:20:39,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:20:39,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1459337121, now seen corresponding path program 1 times [2019-10-13 19:20:39,915 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:20:39,916 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580203852] [2019-10-13 19:20:39,916 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:39,916 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:20:39,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:20:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,786 WARN L191 SmtUtils]: Spent 745.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2019-10-13 19:20:40,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:20:41,108 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 19:20:41,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580203852] [2019-10-13 19:20:41,109 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:20:41,109 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:20:41,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837052569] [2019-10-13 19:20:41,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:20:41,121 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:20:41,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:20:41,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:20:41,122 INFO L87 Difference]: Start difference. First operand 566 states and 900 transitions. Second operand 8 states. [2019-10-13 19:20:42,747 WARN L191 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-10-13 19:20:43,547 WARN L191 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 375 [2019-10-13 19:20:45,158 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 112