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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:34:26,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:34:26,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:34:26,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:34:26,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:34:26,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:34:26,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:34:26,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:34:26,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:34:26,995 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:34:26,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:34:26,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:34:26,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:34:26,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:34:26,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:34:27,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:34:27,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:34:27,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:34:27,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:34:27,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:34:27,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:34:27,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:34:27,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:34:27,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:34:27,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:34:27,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:34:27,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:34:27,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:34:27,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:34:27,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:34:27,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:34:27,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:34:27,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:34:27,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:34:27,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:34:27,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:34:27,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:34:27,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:34:27,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:34:27,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:34:27,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:34:27,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:34:27,036 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:34:27,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:34:27,037 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:34:27,037 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:34:27,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:34:27,038 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:34:27,038 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:34:27,038 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:34:27,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:34:27,039 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:34:27,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:34:27,040 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:34:27,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:34:27,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:34:27,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:34:27,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:34:27,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:34:27,041 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:34:27,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:34:27,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:34:27,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:34:27,042 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:34:27,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:34:27,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:34:27,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:34:27,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:34:27,043 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:34:27,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:34:27,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:34:27,043 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:34:27,071 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:34:27,085 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:34:27,088 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:34:27,090 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:34:27,090 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:34:27,091 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product27.cil.c [2019-09-10 02:34:27,172 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3d46f261/736494d0045941a9afdea60a1c8630af/FLAGa7828aa09 [2019-09-10 02:34:27,830 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:34:27,833 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product27.cil.c [2019-09-10 02:34:27,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3d46f261/736494d0045941a9afdea60a1c8630af/FLAGa7828aa09 [2019-09-10 02:34:28,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e3d46f261/736494d0045941a9afdea60a1c8630af [2019-09-10 02:34:28,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:34:28,067 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:34:28,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:34:28,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:34:28,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:34:28,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:34:28" (1/1) ... [2019-09-10 02:34:28,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c77ce8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:28, skipping insertion in model container [2019-09-10 02:34:28,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:34:28" (1/1) ... [2019-09-10 02:34:28,087 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:34:28,179 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:34:28,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:34:28,911 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:34:29,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:34:29,162 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:34:29,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:29 WrapperNode [2019-09-10 02:34:29,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:34:29,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:34:29,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:34:29,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:34:29,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:29" (1/1) ... [2019-09-10 02:34:29,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:29" (1/1) ... [2019-09-10 02:34:29,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:29" (1/1) ... [2019-09-10 02:34:29,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:29" (1/1) ... [2019-09-10 02:34:29,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:29" (1/1) ... [2019-09-10 02:34:29,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:29" (1/1) ... [2019-09-10 02:34:29,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:29" (1/1) ... [2019-09-10 02:34:29,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:34:29,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:34:29,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:34:29,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:34:29,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:29" (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 [2019-09-10 02:34:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:34:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:34:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:34:29,423 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-09-10 02:34:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-09-10 02:34:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-09-10 02:34:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-09-10 02:34:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-09-10 02:34:29,424 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-09-10 02:34:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2019-09-10 02:34:29,425 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-09-10 02:34:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-09-10 02:34:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-09-10 02:34:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-09-10 02:34:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-09-10 02:34:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-09-10 02:34:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-09-10 02:34:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-09-10 02:34:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-09-10 02:34:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-09-10 02:34:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2019-09-10 02:34:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-09-10 02:34:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-09-10 02:34:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-09-10 02:34:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-09-10 02:34:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-09-10 02:34:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-09-10 02:34:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-09-10 02:34:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:34:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-09-10 02:34:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-09-10 02:34:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2019-09-10 02:34:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2019-09-10 02:34:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-09-10 02:34:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-09-10 02:34:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-09-10 02:34:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-09-10 02:34:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-09-10 02:34:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:34:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:34:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:34:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-09-10 02:34:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-09-10 02:34:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-09-10 02:34:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-09-10 02:34:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-09-10 02:34:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-09-10 02:34:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-09-10 02:34:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-09-10 02:34:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:34:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-09-10 02:34:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-09-10 02:34:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-09-10 02:34:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:34:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-09-10 02:34:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:34:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:34:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:34:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-09-10 02:34:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-09-10 02:34:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-09-10 02:34:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-09-10 02:34:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-09-10 02:34:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-09-10 02:34:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-09-10 02:34:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-09-10 02:34:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:34:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:34:29,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:34:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:34:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:34:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:34:29,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:34:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:34:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:34:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:34:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:34:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:34:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:34:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:34:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-09-10 02:34:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-09-10 02:34:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-09-10 02:34:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-09-10 02:34:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-09-10 02:34:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-09-10 02:34:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-09-10 02:34:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-09-10 02:34:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-09-10 02:34:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:34:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-09-10 02:34:29,450 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-09-10 02:34:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-09-10 02:34:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-09-10 02:34:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-09-10 02:34:29,451 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-09-10 02:34:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-09-10 02:34:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-09-10 02:34:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-09-10 02:34:29,452 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-09-10 02:34:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2019-09-10 02:34:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2019-09-10 02:34:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-09-10 02:34:29,453 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-09-10 02:34:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2019-09-10 02:34:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-09-10 02:34:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-09-10 02:34:29,454 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-09-10 02:34:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-09-10 02:34:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-09-10 02:34:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2019-09-10 02:34:29,455 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-09-10 02:34:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-09-10 02:34:29,456 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2019-09-10 02:34:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-09-10 02:34:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-09-10 02:34:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-09-10 02:34:29,457 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:34:29,458 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-09-10 02:34:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:34:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-09-10 02:34:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-09-10 02:34:29,459 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-09-10 02:34:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-09-10 02:34:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-09-10 02:34:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:34:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-09-10 02:34:29,461 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-09-10 02:34:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:34:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:34:29,462 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-10 02:34:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-09-10 02:34:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-09-10 02:34:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-09-10 02:34:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-09-10 02:34:29,463 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-09-10 02:34:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-09-10 02:34:29,464 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-09-10 02:34:29,465 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-09-10 02:34:29,469 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-09-10 02:34:29,470 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:34:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-09-10 02:34:29,471 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:34:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:34:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:34:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:34:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:34:29,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:34:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-09-10 02:34:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:34:29,483 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:34:29,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:34:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:34:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:34:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:34:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:34:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:34:29,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:34:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:34:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:34:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:34:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:34:29,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:34:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:34:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:34:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:34:29,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:34:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:34:29,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:34:31,775 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:34:31,776 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-10 02:34:31,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:34:31 BoogieIcfgContainer [2019-09-10 02:34:31,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:34:31,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:34:31,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:34:31,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:34:31,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:34:28" (1/3) ... [2019-09-10 02:34:31,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702e496b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:34:31, skipping insertion in model container [2019-09-10 02:34:31,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:34:29" (2/3) ... [2019-09-10 02:34:31,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@702e496b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:34:31, skipping insertion in model container [2019-09-10 02:34:31,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:34:31" (3/3) ... [2019-09-10 02:34:31,785 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product27.cil.c [2019-09-10 02:34:31,795 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:34:31,805 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:34:31,821 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:34:31,856 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:34:31,856 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:34:31,856 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:34:31,856 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:34:31,857 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:34:31,857 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:34:31,857 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:34:31,857 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:34:31,898 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states. [2019-09-10 02:34:31,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-09-10 02:34:31,935 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:31,936 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:31,939 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:31,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:31,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1573274130, now seen corresponding path program 1 times [2019-09-10 02:34:31,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:31,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:31,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:31,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:31,991 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:32,612 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:32,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:32,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:32,615 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:32,623 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:32,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:32,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:32,641 INFO L87 Difference]: Start difference. First operand 806 states. Second operand 7 states. [2019-09-10 02:34:32,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:32,906 INFO L93 Difference]: Finished difference Result 665 states and 1052 transitions. [2019-09-10 02:34:32,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:32,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 141 [2019-09-10 02:34:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:32,942 INFO L225 Difference]: With dead ends: 665 [2019-09-10 02:34:32,943 INFO L226 Difference]: Without dead ends: 654 [2019-09-10 02:34:32,948 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:32,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2019-09-10 02:34:33,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 652. [2019-09-10 02:34:33,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 652 states. [2019-09-10 02:34:33,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 1035 transitions. [2019-09-10 02:34:33,072 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 1035 transitions. Word has length 141 [2019-09-10 02:34:33,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:33,075 INFO L475 AbstractCegarLoop]: Abstraction has 652 states and 1035 transitions. [2019-09-10 02:34:33,075 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:33,076 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 1035 transitions. [2019-09-10 02:34:33,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-10 02:34:33,085 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:33,085 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:33,086 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:33,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:33,086 INFO L82 PathProgramCache]: Analyzing trace with hash 2025459655, now seen corresponding path program 1 times [2019-09-10 02:34:33,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:33,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:33,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:33,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:33,088 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:33,255 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:33,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:33,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:34:33,256 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:33,257 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:34:33,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:34:33,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:34:33,258 INFO L87 Difference]: Start difference. First operand 652 states and 1035 transitions. Second operand 4 states. [2019-09-10 02:34:33,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:33,315 INFO L93 Difference]: Finished difference Result 650 states and 1030 transitions. [2019-09-10 02:34:33,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:34:33,316 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2019-09-10 02:34:33,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:33,322 INFO L225 Difference]: With dead ends: 650 [2019-09-10 02:34:33,322 INFO L226 Difference]: Without dead ends: 634 [2019-09-10 02:34:33,324 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:33,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2019-09-10 02:34:33,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2019-09-10 02:34:33,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2019-09-10 02:34:33,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1002 transitions. [2019-09-10 02:34:33,382 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1002 transitions. Word has length 142 [2019-09-10 02:34:33,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:33,385 INFO L475 AbstractCegarLoop]: Abstraction has 634 states and 1002 transitions. [2019-09-10 02:34:33,390 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:34:33,390 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1002 transitions. [2019-09-10 02:34:33,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-10 02:34:33,396 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:33,397 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:33,400 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:33,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:33,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1890862467, now seen corresponding path program 1 times [2019-09-10 02:34:33,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:33,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:33,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:33,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:33,403 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:33,715 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:33,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:33,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:33,716 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:33,716 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:33,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:33,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:33,717 INFO L87 Difference]: Start difference. First operand 634 states and 1002 transitions. Second operand 7 states. [2019-09-10 02:34:33,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:33,820 INFO L93 Difference]: Finished difference Result 637 states and 1005 transitions. [2019-09-10 02:34:33,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:33,821 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 142 [2019-09-10 02:34:33,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:33,827 INFO L225 Difference]: With dead ends: 637 [2019-09-10 02:34:33,827 INFO L226 Difference]: Without dead ends: 628 [2019-09-10 02:34:33,828 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:33,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2019-09-10 02:34:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2019-09-10 02:34:33,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2019-09-10 02:34:33,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 989 transitions. [2019-09-10 02:34:33,857 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 989 transitions. Word has length 142 [2019-09-10 02:34:33,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:33,858 INFO L475 AbstractCegarLoop]: Abstraction has 628 states and 989 transitions. [2019-09-10 02:34:33,858 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:33,858 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 989 transitions. [2019-09-10 02:34:33,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-09-10 02:34:33,863 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:33,864 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:33,864 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:33,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:33,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1767299342, now seen corresponding path program 1 times [2019-09-10 02:34:33,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:33,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:33,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:33,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:33,866 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:34,077 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:34,078 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:34,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:34,078 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:34,079 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:34,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:34,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:34,080 INFO L87 Difference]: Start difference. First operand 628 states and 989 transitions. Second operand 7 states. [2019-09-10 02:34:34,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:34,161 INFO L93 Difference]: Finished difference Result 631 states and 992 transitions. [2019-09-10 02:34:34,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:34,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2019-09-10 02:34:34,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:34,168 INFO L225 Difference]: With dead ends: 631 [2019-09-10 02:34:34,168 INFO L226 Difference]: Without dead ends: 622 [2019-09-10 02:34:34,169 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-09-10 02:34:34,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2019-09-10 02:34:34,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2019-09-10 02:34:34,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 976 transitions. [2019-09-10 02:34:34,194 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 976 transitions. Word has length 143 [2019-09-10 02:34:34,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:34,195 INFO L475 AbstractCegarLoop]: Abstraction has 622 states and 976 transitions. [2019-09-10 02:34:34,195 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:34,195 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 976 transitions. [2019-09-10 02:34:34,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-09-10 02:34:34,200 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:34,201 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:34,201 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:34,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:34,201 INFO L82 PathProgramCache]: Analyzing trace with hash -852942783, now seen corresponding path program 1 times [2019-09-10 02:34:34,202 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:34,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:34,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:34,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:34,203 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:34,451 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:34,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:34,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:34,452 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:34,453 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:34,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:34,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:34,453 INFO L87 Difference]: Start difference. First operand 622 states and 976 transitions. Second operand 7 states. [2019-09-10 02:34:34,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:34,533 INFO L93 Difference]: Finished difference Result 625 states and 979 transitions. [2019-09-10 02:34:34,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:34,533 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2019-09-10 02:34:34,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:34,540 INFO L225 Difference]: With dead ends: 625 [2019-09-10 02:34:34,540 INFO L226 Difference]: Without dead ends: 616 [2019-09-10 02:34:34,540 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:34,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-09-10 02:34:34,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-09-10 02:34:34,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-09-10 02:34:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 963 transitions. [2019-09-10 02:34:34,560 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 963 transitions. Word has length 144 [2019-09-10 02:34:34,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:34,561 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 963 transitions. [2019-09-10 02:34:34,561 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:34,561 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 963 transitions. [2019-09-10 02:34:34,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-09-10 02:34:34,565 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:34,565 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:34,565 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:34,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:34,566 INFO L82 PathProgramCache]: Analyzing trace with hash -2091889598, now seen corresponding path program 1 times [2019-09-10 02:34:34,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:34,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:34,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:34,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:34,569 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:34,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:34,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:34:34,727 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:34,728 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:34:34,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:34:34,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:34:34,728 INFO L87 Difference]: Start difference. First operand 616 states and 963 transitions. Second operand 7 states. [2019-09-10 02:34:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:34,797 INFO L93 Difference]: Finished difference Result 619 states and 966 transitions. [2019-09-10 02:34:34,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:34:34,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2019-09-10 02:34:34,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:34,804 INFO L225 Difference]: With dead ends: 619 [2019-09-10 02:34:34,805 INFO L226 Difference]: Without dead ends: 616 [2019-09-10 02:34:34,805 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:34:34,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-09-10 02:34:34,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-09-10 02:34:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-09-10 02:34:34,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 962 transitions. [2019-09-10 02:34:34,827 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 962 transitions. Word has length 144 [2019-09-10 02:34:34,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:34,828 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 962 transitions. [2019-09-10 02:34:34,828 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:34:34,828 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 962 transitions. [2019-09-10 02:34:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-09-10 02:34:34,831 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:34,832 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:34,832 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:34,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:34,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1193793546, now seen corresponding path program 1 times [2019-09-10 02:34:34,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:34,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:34,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:34,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:34,834 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:34,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:34,966 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:34,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:34,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:34,967 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:34,968 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:34,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:34,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:34,968 INFO L87 Difference]: Start difference. First operand 616 states and 962 transitions. Second operand 5 states. [2019-09-10 02:34:35,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:35,043 INFO L93 Difference]: Finished difference Result 618 states and 963 transitions. [2019-09-10 02:34:35,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:35,043 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2019-09-10 02:34:35,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:35,049 INFO L225 Difference]: With dead ends: 618 [2019-09-10 02:34:35,049 INFO L226 Difference]: Without dead ends: 616 [2019-09-10 02:34:35,050 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:34:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-09-10 02:34:35,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-09-10 02:34:35,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-09-10 02:34:35,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 961 transitions. [2019-09-10 02:34:35,074 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 961 transitions. Word has length 145 [2019-09-10 02:34:35,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:35,075 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 961 transitions. [2019-09-10 02:34:35,075 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:35,075 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 961 transitions. [2019-09-10 02:34:35,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-09-10 02:34:35,080 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:35,081 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:35,081 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:35,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:35,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1917028761, now seen corresponding path program 1 times [2019-09-10 02:34:35,082 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:35,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:35,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:35,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:35,083 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:35,300 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:35,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:35,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:35,301 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:35,302 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:35,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:35,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:35,302 INFO L87 Difference]: Start difference. First operand 616 states and 961 transitions. Second operand 5 states. [2019-09-10 02:34:35,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:35,365 INFO L93 Difference]: Finished difference Result 618 states and 962 transitions. [2019-09-10 02:34:35,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:35,365 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2019-09-10 02:34:35,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:35,371 INFO L225 Difference]: With dead ends: 618 [2019-09-10 02:34:35,372 INFO L226 Difference]: Without dead ends: 616 [2019-09-10 02:34:35,372 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:34:35,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-09-10 02:34:35,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-09-10 02:34:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-09-10 02:34:35,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 960 transitions. [2019-09-10 02:34:35,394 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 960 transitions. Word has length 146 [2019-09-10 02:34:35,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:35,395 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 960 transitions. [2019-09-10 02:34:35,395 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:35,395 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 960 transitions. [2019-09-10 02:34:35,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2019-09-10 02:34:35,400 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:35,400 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:35,401 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:35,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:35,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1209344655, now seen corresponding path program 1 times [2019-09-10 02:34:35,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:35,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:35,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:35,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:35,404 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:35,541 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:35,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:35,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:35,542 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:35,542 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:35,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:35,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:35,543 INFO L87 Difference]: Start difference. First operand 616 states and 960 transitions. Second operand 5 states. [2019-09-10 02:34:35,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:35,602 INFO L93 Difference]: Finished difference Result 618 states and 961 transitions. [2019-09-10 02:34:35,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:35,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2019-09-10 02:34:35,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:35,608 INFO L225 Difference]: With dead ends: 618 [2019-09-10 02:34:35,608 INFO L226 Difference]: Without dead ends: 616 [2019-09-10 02:34:35,609 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:34:35,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-09-10 02:34:35,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-09-10 02:34:35,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-09-10 02:34:35,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 959 transitions. [2019-09-10 02:34:35,630 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 959 transitions. Word has length 147 [2019-09-10 02:34:35,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:35,630 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 959 transitions. [2019-09-10 02:34:35,631 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:35,631 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 959 transitions. [2019-09-10 02:34:35,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-09-10 02:34:35,634 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:35,635 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:35,635 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:35,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:35,635 INFO L82 PathProgramCache]: Analyzing trace with hash 907165442, now seen corresponding path program 1 times [2019-09-10 02:34:35,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:35,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:35,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:35,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:35,638 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:34:35,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:34:35,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:34:35,804 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:35,804 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:34:35,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:34:35,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:34:35,805 INFO L87 Difference]: Start difference. First operand 616 states and 959 transitions. Second operand 5 states. [2019-09-10 02:34:35,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:35,874 INFO L93 Difference]: Finished difference Result 618 states and 960 transitions. [2019-09-10 02:34:35,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:34:35,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2019-09-10 02:34:35,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:35,879 INFO L225 Difference]: With dead ends: 618 [2019-09-10 02:34:35,879 INFO L226 Difference]: Without dead ends: 616 [2019-09-10 02:34:35,880 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:34:35,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2019-09-10 02:34:35,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 616. [2019-09-10 02:34:35,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-09-10 02:34:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 958 transitions. [2019-09-10 02:34:35,900 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 958 transitions. Word has length 148 [2019-09-10 02:34:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:35,901 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 958 transitions. [2019-09-10 02:34:35,901 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:34:35,901 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 958 transitions. [2019-09-10 02:34:35,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-09-10 02:34:35,906 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:34:35,906 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:34:35,906 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:34:35,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:35,907 INFO L82 PathProgramCache]: Analyzing trace with hash -547358996, now seen corresponding path program 1 times [2019-09-10 02:34:35,907 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:34:35,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:35,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:34:35,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:34:35,909 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:34:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:34:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-10 02:34:36,196 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:34:36,196 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:34:36,199 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 150 with the following transitions: [2019-09-10 02:34:36,205 INFO L207 CegarAbsIntRunner]: [55], [56], [62], [63], [320], [324], [327], [384], [385], [387], [388], [389], [391], [394], [396], [400], [449], [451], [453], [859], [862], [959], [962], [967], [970], [1036], [1041], [1074], [1075], [1110], [1112], [1155], [1157], [1160], [1162], [1168], [1172], [1173], [1174], [1175], [1211], [1247], [1283], [1319], [1322], [1325], [1358], [1411], [1416], [1421], [1426], [1431], [1434], [1438], [1623], [1626], [1648], [1649], [1662], [1665], [1671], [1675], [1788], [1789], [1881], [1884], [1886], [1889], [1915], [1917], [1919], [1922], [1935], [1949], [1963], [1977], [1991], [2065], [2331], [2335], [2338], [2356], [2529], [2530], [2531], [2532], [2533], [2534], [2535], [2536], [2537], [2571], [2572], [2573], [2574], [2575], [2576], [2579], [2580], [2581], [2582], [2583], [2584], [2585], [2586], [2587], [2637], [2638], [2639], [2640], [2669], [2670], [2671], [2672], [2683], [2701], [2702], [2707], [2708], [2709], [2710], [2715], [2716], [2717], [2743], [2767], [2768], [2769], [2775], [2776], [2777], [2778], [2809], [2810], [2811] [2019-09-10 02:34:36,298 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:34:36,299 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:34:36,474 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:34:36,476 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 148 root evaluator evaluations with a maximum evaluation depth of 0. Performed 148 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 256 variables. [2019-09-10 02:34:36,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:34:36,483 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:34:36,557 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:34:36,558 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:34:36,571 INFO L420 sIntCurrentIteration]: We unified 148 AI predicates to 148 [2019-09-10 02:34:36,571 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:34:36,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:34:36,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:34:36,573 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:34:36,575 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:34:36,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:34:36,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:34:36,576 INFO L87 Difference]: Start difference. First operand 616 states and 958 transitions. Second operand 2 states. [2019-09-10 02:34:36,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:34:36,576 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:34:36,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:34:36,577 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 149 [2019-09-10 02:34:36,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:34:36,578 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:34:36,578 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:34:36,579 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:34:36,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:34:36,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:34:36,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:34:36,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:34:36,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 149 [2019-09-10 02:34:36,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:34:36,581 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:34:36,581 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:34:36,581 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:34:36,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:34:36,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:34:36 BoogieIcfgContainer [2019-09-10 02:34:36,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:34:36,594 INFO L168 Benchmark]: Toolchain (without parser) took 8525.31 ms. Allocated memory was 135.3 MB in the beginning and 398.5 MB in the end (delta: 263.2 MB). Free memory was 88.7 MB in the beginning and 315.1 MB in the end (delta: -226.5 MB). Peak memory consumption was 36.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:36,596 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 109.9 MB in the beginning and 109.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:34:36,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1092.23 ms. Allocated memory was 135.3 MB in the beginning and 202.4 MB in the end (delta: 67.1 MB). Free memory was 88.5 MB in the beginning and 141.7 MB in the end (delta: -53.3 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:36,599 INFO L168 Benchmark]: Boogie Preprocessor took 169.94 ms. Allocated memory is still 202.4 MB. Free memory was 141.7 MB in the beginning and 132.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:36,605 INFO L168 Benchmark]: RCFGBuilder took 2444.53 ms. Allocated memory was 202.4 MB in the beginning and 260.0 MB in the end (delta: 57.7 MB). Free memory was 132.2 MB in the beginning and 140.2 MB in the end (delta: -8.0 MB). Peak memory consumption was 93.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:34:36,605 INFO L168 Benchmark]: TraceAbstraction took 4810.93 ms. Allocated memory was 260.0 MB in the beginning and 398.5 MB in the end (delta: 138.4 MB). Free memory was 140.2 MB in the beginning and 315.1 MB in the end (delta: -174.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:34:36,612 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 109.9 MB in the beginning and 109.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1092.23 ms. Allocated memory was 135.3 MB in the beginning and 202.4 MB in the end (delta: 67.1 MB). Free memory was 88.5 MB in the beginning and 141.7 MB in the end (delta: -53.3 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 169.94 ms. Allocated memory is still 202.4 MB. Free memory was 141.7 MB in the beginning and 132.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2444.53 ms. Allocated memory was 202.4 MB in the beginning and 260.0 MB in the end (delta: 57.7 MB). Free memory was 132.2 MB in the beginning and 140.2 MB in the end (delta: -8.0 MB). Peak memory consumption was 93.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4810.93 ms. Allocated memory was 260.0 MB in the beginning and 398.5 MB in the end (delta: 138.4 MB). Free memory was 140.2 MB in the beginning and 315.1 MB in the end (delta: -174.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3438]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 77 procedures, 933 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9737 SDtfs, 373 SDslu, 37652 SDs, 0 SdLazy, 470 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=806occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 1.9797297297297298 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1591 NumberOfCodeBlocks, 1591 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1580 ConstructedInterpolants, 0 QuantifiedInterpolants, 264960 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 229/231 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...