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_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:21:38,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:21:38,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:21:38,999 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:21:38,999 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:21:39,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:21:39,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:21:39,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:21:39,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:21:39,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:21:39,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:21:39,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:21:39,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:21:39,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:21:39,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:21:39,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:21:39,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:21:39,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:21:39,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:21:39,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:21:39,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:21:39,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:21:39,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:21:39,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:21:39,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:21:39,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:21:39,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:21:39,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:21:39,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:21:39,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:21:39,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:21:39,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:21:39,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:21:39,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:21:39,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:21:39,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:21:39,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:21:39,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:21:39,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:21:39,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:21:39,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:21:39,036 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 19:21:39,051 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:21:39,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:21:39,052 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:21:39,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:21:39,053 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:21:39,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:21:39,053 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:21:39,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:21:39,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:21:39,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:21:39,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:21:39,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:21:39,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:21:39,055 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:21:39,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:21:39,055 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:21:39,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:21:39,055 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:21:39,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:21:39,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:21:39,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:21:39,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:21:39,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:21:39,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:21:39,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:21:39,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:21:39,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:21:39,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:21:39,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:21:39,373 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:21:39,387 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:21:39,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:21:39,392 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:21:39,393 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:21:39,393 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product18.cil.c [2019-10-13 19:21:39,476 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c968ea533/7431553cd50d4ff9a33c9d4f8c772d8a/FLAGfa9338ba2 [2019-10-13 19:21:40,126 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:21:40,127 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product18.cil.c [2019-10-13 19:21:40,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c968ea533/7431553cd50d4ff9a33c9d4f8c772d8a/FLAGfa9338ba2 [2019-10-13 19:21:40,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c968ea533/7431553cd50d4ff9a33c9d4f8c772d8a [2019-10-13 19:21:40,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:21:40,314 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:21:40,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:21:40,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:21:40,320 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:21:40,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:21:40" (1/1) ... [2019-10-13 19:21:40,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ee337c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:40, skipping insertion in model container [2019-10-13 19:21:40,325 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:21:40" (1/1) ... [2019-10-13 19:21:40,333 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:21:40,417 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:21:41,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:21:41,275 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:21:41,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:21:41,497 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:21:41,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:41 WrapperNode [2019-10-13 19:21:41,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:21:41,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:21:41,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:21:41,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:21:41,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:41" (1/1) ... [2019-10-13 19:21:41,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:41" (1/1) ... [2019-10-13 19:21:41,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:41" (1/1) ... [2019-10-13 19:21:41,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:41" (1/1) ... [2019-10-13 19:21:41,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:41" (1/1) ... [2019-10-13 19:21:41,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:41" (1/1) ... [2019-10-13 19:21:41,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:41" (1/1) ... [2019-10-13 19:21:41,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:21:41,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:21:41,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:21:41,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:21:41,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:41" (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 19:21:41,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:21:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:21:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:21:41,825 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-13 19:21:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-13 19:21:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:21:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-13 19:21:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-13 19:21:41,826 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-13 19:21:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:21:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:21:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:21:41,827 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:21:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-13 19:21:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-13 19:21:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-13 19:21:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-13 19:21:41,828 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-13 19:21:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-13 19:21:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-13 19:21:41,829 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-13 19:21:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-13 19:21:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-13 19:21:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-13 19:21:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-13 19:21:41,830 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-13 19:21:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-13 19:21:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-13 19:21:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-13 19:21:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-13 19:21:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-13 19:21:41,831 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-13 19:21:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-13 19:21:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-13 19:21:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-13 19:21:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2019-10-13 19:21:41,832 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:21:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__weight [2019-10-13 19:21:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-13 19:21:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-13 19:21:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:21:41,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:21:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:21:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:21:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:21:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:21:41,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:21:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-13 19:21:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-13 19:21:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-13 19:21:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-13 19:21:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-13 19:21:41,835 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-13 19:21:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-13 19:21:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-13 19:21:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:21:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-13 19:21:41,836 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-13 19:21:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-13 19:21:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:21:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-13 19:21:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:21:41,837 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:21:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:21:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:21:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:21:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2019-10-13 19:21:41,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2019-10-13 19:21:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-13 19:21:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-13 19:21:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-13 19:21:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-13 19:21:41,839 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-13 19:21:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-13 19:21:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-13 19:21:41,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-13 19:21:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:21:41,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:21:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-13 19:21:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-13 19:21:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:21:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-13 19:21:41,841 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-13 19:21:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-13 19:21:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-13 19:21:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-13 19:21:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-13 19:21:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-13 19:21:41,842 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:21:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:21:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-13 19:21:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-13 19:21:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:21:41,843 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:21:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:21:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:21:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:21:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-13 19:21:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-13 19:21:41,844 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-13 19:21:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-13 19:21:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-13 19:21:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-13 19:21:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-13 19:21:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-13 19:21:41,845 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-13 19:21:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-13 19:21:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-13 19:21:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-13 19:21:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-13 19:21:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-13 19:21:41,846 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-13 19:21:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-13 19:21:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 19:21:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-13 19:21:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-13 19:21:41,847 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-13 19:21:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-13 19:21:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-13 19:21:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-13 19:21:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-13 19:21:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-13 19:21:41,848 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-13 19:21:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2019-10-13 19:21:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2019-10-13 19:21:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__weight [2019-10-13 19:21:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:21:41,849 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-13 19:21:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:21:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:21:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:21:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:21:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:21:41,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:21:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:21:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:21:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:21:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:21:41,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:21:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:21:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:21:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:21:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:21:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:21:41,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:21:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-13 19:21:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-13 19:21:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-13 19:21:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-13 19:21:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-13 19:21:41,853 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-13 19:21:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-13 19:21:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-13 19:21:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-13 19:21:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-13 19:21:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-13 19:21:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:21:41,854 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-13 19:21:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:21:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 19:21:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2019-10-13 19:21:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:21:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:21:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-13 19:21:41,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:21:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:21:41,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:21:44,262 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:21:44,262 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 19:21:44,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:44 BoogieIcfgContainer [2019-10-13 19:21:44,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:21:44,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:21:44,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:21:44,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:21:44,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:21:40" (1/3) ... [2019-10-13 19:21:44,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528d0866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:21:44, skipping insertion in model container [2019-10-13 19:21:44,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:21:41" (2/3) ... [2019-10-13 19:21:44,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@528d0866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:21:44, skipping insertion in model container [2019-10-13 19:21:44,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:21:44" (3/3) ... [2019-10-13 19:21:44,274 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product18.cil.c [2019-10-13 19:21:44,285 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:21:44,296 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:21:44,309 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:21:44,348 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:21:44,348 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:21:44,348 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:21:44,348 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:21:44,349 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:21:44,349 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:21:44,349 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:21:44,349 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:21:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states. [2019-10-13 19:21:44,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-13 19:21:44,424 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:21:44,425 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:21:44,429 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:21:44,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:21:44,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1188892362, now seen corresponding path program 1 times [2019-10-13 19:21:44,447 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:21:44,447 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724691426] [2019-10-13 19:21:44,448 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:21:44,448 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:21:44,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:21:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,093 WARN L191 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2019-10-13 19:21:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,420 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-13 19:21:46,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,588 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-13 19:21:46,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:21:46,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:21:46,871 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724691426] [2019-10-13 19:21:46,872 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:21:46,872 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:21:46,872 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076691954] [2019-10-13 19:21:46,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:21:46,878 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:21:46,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:21:46,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:21:46,896 INFO L87 Difference]: Start difference. First operand 758 states. Second operand 9 states. [2019-10-13 19:21:49,000 WARN L191 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2019-10-13 19:21:49,932 WARN L191 SmtUtils]: Spent 896.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2019-10-13 19:21:51,605 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-10-13 19:22:14,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:22:14,354 INFO L93 Difference]: Finished difference Result 1616 states and 2828 transitions. [2019-10-13 19:22:14,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:22:14,357 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2019-10-13 19:22:14,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:22:14,394 INFO L225 Difference]: With dead ends: 1616 [2019-10-13 19:22:14,394 INFO L226 Difference]: Without dead ends: 1029 [2019-10-13 19:22:14,407 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:22:14,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2019-10-13 19:22:14,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 591. [2019-10-13 19:22:14,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 591 states. [2019-10-13 19:22:14,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 950 transitions. [2019-10-13 19:22:14,701 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 950 transitions. Word has length 85 [2019-10-13 19:22:14,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:22:14,702 INFO L462 AbstractCegarLoop]: Abstraction has 591 states and 950 transitions. [2019-10-13 19:22:14,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:22:14,702 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 950 transitions. [2019-10-13 19:22:14,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 19:22:14,712 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:22:14,712 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:22:14,712 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:22:14,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:22:14,714 INFO L82 PathProgramCache]: Analyzing trace with hash -425590234, now seen corresponding path program 1 times [2019-10-13 19:22:14,714 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:22:14,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815943379] [2019-10-13 19:22:14,714 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:22:14,715 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:22:14,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:22:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:15,758 WARN L191 SmtUtils]: Spent 884.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2019-10-13 19:22:15,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:15,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,035 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-13 19:22:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,196 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-13 19:22:16,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:22:16,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:22:16,397 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815943379] [2019-10-13 19:22:16,397 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:22:16,398 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:22:16,398 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950415827] [2019-10-13 19:22:16,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:22:16,410 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:22:16,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:22:16,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:22:16,411 INFO L87 Difference]: Start difference. First operand 591 states and 950 transitions. Second operand 9 states. [2019-10-13 19:22:18,146 WARN L191 SmtUtils]: Spent 843.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2019-10-13 19:22:19,087 WARN L191 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2019-10-13 19:22:20,468 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 121