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_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:45:14,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:45:14,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:45:14,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:45:14,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:45:14,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:45:14,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:45:14,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:45:14,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:45:14,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:45:14,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:45:14,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:45:14,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:45:14,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:45:14,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:45:14,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:45:14,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:45:14,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:45:14,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:45:14,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:45:14,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:45:14,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:45:14,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:45:14,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:45:14,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:45:14,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:45:14,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:45:14,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:45:14,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:45:14,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:45:14,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:45:14,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:45:14,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:45:14,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:45:14,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:45:14,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:45:14,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:45:14,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:45:14,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:45:14,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:45:14,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:45:14,236 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 [2019-10-03 02:45:14,255 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:45:14,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:45:14,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:45:14,256 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:45:14,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:45:14,257 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:45:14,257 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:45:14,257 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:45:14,258 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:45:14,258 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:45:14,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:45:14,259 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:45:14,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:45:14,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:45:14,260 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:45:14,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:45:14,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:45:14,260 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:45:14,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:45:14,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:45:14,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:45:14,261 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:45:14,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:45:14,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:45:14,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:45:14,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:45:14,262 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:45:14,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:45:14,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:45:14,263 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:45:14,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:45:14,326 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:45:14,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:45:14,331 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:45:14,331 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:45:14,332 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c [2019-10-03 02:45:14,407 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1259ac25/a016b0e804d84c0085890dbea7a8ac42/FLAG6c3b1d7f4 [2019-10-03 02:45:15,109 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:45:15,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product17.cil.c [2019-10-03 02:45:15,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1259ac25/a016b0e804d84c0085890dbea7a8ac42/FLAG6c3b1d7f4 [2019-10-03 02:45:15,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1259ac25/a016b0e804d84c0085890dbea7a8ac42 [2019-10-03 02:45:15,344 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:45:15,346 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:45:15,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:15,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:45:15,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:45:15,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:15" (1/1) ... [2019-10-03 02:45:15,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc90f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:15, skipping insertion in model container [2019-10-03 02:45:15,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:45:15" (1/1) ... [2019-10-03 02:45:15,366 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:45:15,473 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:45:16,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:16,361 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:45:16,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:45:16,577 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:45:16,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:16 WrapperNode [2019-10-03 02:45:16,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:45:16,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:45:16,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:45:16,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:45:16,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:16" (1/1) ... [2019-10-03 02:45:16,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:16" (1/1) ... [2019-10-03 02:45:16,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:16" (1/1) ... [2019-10-03 02:45:16,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:16" (1/1) ... [2019-10-03 02:45:16,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:16" (1/1) ... [2019-10-03 02:45:16,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:16" (1/1) ... [2019-10-03 02:45:16,767 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:16" (1/1) ... [2019-10-03 02:45:16,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:45:16,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:45:16,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:45:16,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:45:16,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:45:16,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:45:16,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:45:16,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:16,886 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:45:16,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:16,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:16,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:45:16,886 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2019-10-03 02:45:16,886 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2019-10-03 02:45:16,887 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2019-10-03 02:45:16,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2019-10-03 02:45:16,888 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2019-10-03 02:45:16,888 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2019-10-03 02:45:16,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2019-10-03 02:45:16,890 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2019-10-03 02:45:16,891 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2019-10-03 02:45:16,891 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2019-10-03 02:45:16,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:16,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:16,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:16,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:45:16,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:45:16,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:45:16,895 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2019-10-03 02:45:16,896 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2019-10-03 02:45:16,896 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2019-10-03 02:45:16,896 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2019-10-03 02:45:16,897 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2019-10-03 02:45:16,897 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2019-10-03 02:45:16,897 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2019-10-03 02:45:16,897 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2019-10-03 02:45:16,898 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2019-10-03 02:45:16,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2019-10-03 02:45:16,898 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2019-10-03 02:45:16,898 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2019-10-03 02:45:16,898 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2019-10-03 02:45:16,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2019-10-03 02:45:16,899 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2019-10-03 02:45:16,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2019-10-03 02:45:16,900 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2019-10-03 02:45:16,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2019-10-03 02:45:16,900 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2019-10-03 02:45:16,901 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:16,901 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2019-10-03 02:45:16,901 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2019-10-03 02:45:16,901 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:45:16,902 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2019-10-03 02:45:16,902 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2019-10-03 02:45:16,902 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2019-10-03 02:45:16,902 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2019-10-03 02:45:16,902 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2019-10-03 02:45:16,903 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2019-10-03 02:45:16,903 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2019-10-03 02:45:16,903 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2019-10-03 02:45:16,903 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2019-10-03 02:45:16,904 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2019-10-03 02:45:16,904 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:45:16,904 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2019-10-03 02:45:16,904 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2019-10-03 02:45:16,904 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2019-10-03 02:45:16,905 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:45:16,905 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2019-10-03 02:45:16,905 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:45:16,905 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:45:16,906 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:45:16,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2019-10-03 02:45:16,906 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2019-10-03 02:45:16,907 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2019-10-03 02:45:16,907 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:45:16,907 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:45:16,908 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:45:16,908 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:45:16,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:45:16,909 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:45:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2019-10-03 02:45:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2019-10-03 02:45:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2019-10-03 02:45:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:45:16,910 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:45:16,911 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:45:16,911 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2019-10-03 02:45:16,911 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2019-10-03 02:45:16,912 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2019-10-03 02:45:16,912 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:45:16,912 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2019-10-03 02:45:16,912 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2019-10-03 02:45:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2019-10-03 02:45:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:45:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2019-10-03 02:45:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2019-10-03 02:45:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2019-10-03 02:45:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2019-10-03 02:45:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2019-10-03 02:45:16,916 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2019-10-03 02:45:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2019-10-03 02:45:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2019-10-03 02:45:16,917 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2019-10-03 02:45:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2019-10-03 02:45:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2019-10-03 02:45:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2019-10-03 02:45:16,918 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:45:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:45:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:45:16,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:45:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:45:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:45:16,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:45:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:45:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:45:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:45:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:45:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:45:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:45:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:45:16,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:45:16,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:45:16,924 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:45:16,925 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:45:16,926 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2019-10-03 02:45:16,926 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2019-10-03 02:45:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2019-10-03 02:45:16,927 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2019-10-03 02:45:16,928 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2019-10-03 02:45:16,929 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2019-10-03 02:45:16,930 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2019-10-03 02:45:16,930 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2019-10-03 02:45:16,930 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2019-10-03 02:45:16,930 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2019-10-03 02:45:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2019-10-03 02:45:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2019-10-03 02:45:16,931 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2019-10-03 02:45:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2019-10-03 02:45:16,932 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2019-10-03 02:45:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2019-10-03 02:45:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2019-10-03 02:45:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2019-10-03 02:45:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2019-10-03 02:45:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-03 02:45:16,938 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2019-10-03 02:45:16,942 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2019-10-03 02:45:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2019-10-03 02:45:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2019-10-03 02:45:16,943 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2019-10-03 02:45:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2019-10-03 02:45:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2019-10-03 02:45:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2019-10-03 02:45:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2019-10-03 02:45:16,952 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:45:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2019-10-03 02:45:16,953 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:45:16,954 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:45:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:45:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:45:16,955 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:45:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:45:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:45:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:45:16,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:45:16,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:45:19,610 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:45:19,611 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-03 02:45:19,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:45:19 BoogieIcfgContainer [2019-10-03 02:45:19,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:45:19,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:45:19,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:45:19,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:45:19,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:45:15" (1/3) ... [2019-10-03 02:45:19,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606c41c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:45:19, skipping insertion in model container [2019-10-03 02:45:19,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:45:16" (2/3) ... [2019-10-03 02:45:19,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606c41c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:45:19, skipping insertion in model container [2019-10-03 02:45:19,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:45:19" (3/3) ... [2019-10-03 02:45:19,622 INFO L109 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product17.cil.c [2019-10-03 02:45:19,633 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:45:19,648 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:45:19,671 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:45:19,708 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:45:19,708 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:45:19,708 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:45:19,708 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:45:19,709 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:45:19,709 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:45:19,709 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:45:19,709 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:45:19,756 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states. [2019-10-03 02:45:19,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-10-03 02:45:19,796 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:19,797 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:19,800 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:19,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:19,807 INFO L82 PathProgramCache]: Analyzing trace with hash 766900618, now seen corresponding path program 1 times [2019-10-03 02:45:19,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:19,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:19,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:19,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:19,874 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:20,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:20,579 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:20,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:20,580 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:20,587 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:20,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:20,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:20,606 INFO L87 Difference]: Start difference. First operand 762 states. Second operand 7 states. [2019-10-03 02:45:20,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:20,971 INFO L93 Difference]: Finished difference Result 621 states and 993 transitions. [2019-10-03 02:45:20,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:20,973 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 115 [2019-10-03 02:45:20,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:21,012 INFO L225 Difference]: With dead ends: 621 [2019-10-03 02:45:21,013 INFO L226 Difference]: Without dead ends: 610 [2019-10-03 02:45:21,016 INFO L640 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 [2019-10-03 02:45:21,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2019-10-03 02:45:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 608. [2019-10-03 02:45:21,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-10-03 02:45:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 976 transitions. [2019-10-03 02:45:21,171 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 976 transitions. Word has length 115 [2019-10-03 02:45:21,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:21,172 INFO L475 AbstractCegarLoop]: Abstraction has 608 states and 976 transitions. [2019-10-03 02:45:21,172 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:21,172 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 976 transitions. [2019-10-03 02:45:21,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-03 02:45:21,177 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:21,177 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:21,178 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:21,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:21,178 INFO L82 PathProgramCache]: Analyzing trace with hash -2028873896, now seen corresponding path program 1 times [2019-10-03 02:45:21,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:21,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:21,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,187 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:21,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:21,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:21,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:45:21,392 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:21,394 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:45:21,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:45:21,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:45:21,395 INFO L87 Difference]: Start difference. First operand 608 states and 976 transitions. Second operand 4 states. [2019-10-03 02:45:21,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:21,470 INFO L93 Difference]: Finished difference Result 606 states and 971 transitions. [2019-10-03 02:45:21,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:45:21,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2019-10-03 02:45:21,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:21,479 INFO L225 Difference]: With dead ends: 606 [2019-10-03 02:45:21,479 INFO L226 Difference]: Without dead ends: 590 [2019-10-03 02:45:21,480 INFO L640 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 [2019-10-03 02:45:21,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2019-10-03 02:45:21,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2019-10-03 02:45:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2019-10-03 02:45:21,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 943 transitions. [2019-10-03 02:45:21,532 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 943 transitions. Word has length 116 [2019-10-03 02:45:21,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:21,534 INFO L475 AbstractCegarLoop]: Abstraction has 590 states and 943 transitions. [2019-10-03 02:45:21,535 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:45:21,535 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 943 transitions. [2019-10-03 02:45:21,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-10-03 02:45:21,543 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:21,543 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:21,544 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:21,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:21,545 INFO L82 PathProgramCache]: Analyzing trace with hash -597122142, now seen corresponding path program 1 times [2019-10-03 02:45:21,545 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:21,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:21,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,554 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:21,786 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:21,787 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:21,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:21,787 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:21,788 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:21,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:21,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:21,788 INFO L87 Difference]: Start difference. First operand 590 states and 943 transitions. Second operand 7 states. [2019-10-03 02:45:21,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:21,878 INFO L93 Difference]: Finished difference Result 593 states and 946 transitions. [2019-10-03 02:45:21,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:21,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 116 [2019-10-03 02:45:21,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:21,885 INFO L225 Difference]: With dead ends: 593 [2019-10-03 02:45:21,885 INFO L226 Difference]: Without dead ends: 584 [2019-10-03 02:45:21,886 INFO L640 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 [2019-10-03 02:45:21,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-03 02:45:21,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2019-10-03 02:45:21,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2019-10-03 02:45:21,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 930 transitions. [2019-10-03 02:45:21,912 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 930 transitions. Word has length 116 [2019-10-03 02:45:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:21,913 INFO L475 AbstractCegarLoop]: Abstraction has 584 states and 930 transitions. [2019-10-03 02:45:21,914 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:21,914 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 930 transitions. [2019-10-03 02:45:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-03 02:45:21,920 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:21,921 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:21,921 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:21,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:21,957 INFO L82 PathProgramCache]: Analyzing trace with hash 28817582, now seen corresponding path program 1 times [2019-10-03 02:45:21,957 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:21,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:21,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:21,964 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:22,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:22,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:22,128 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:22,130 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:22,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:22,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:22,131 INFO L87 Difference]: Start difference. First operand 584 states and 930 transitions. Second operand 7 states. [2019-10-03 02:45:22,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:22,217 INFO L93 Difference]: Finished difference Result 587 states and 933 transitions. [2019-10-03 02:45:22,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:22,218 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 117 [2019-10-03 02:45:22,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:22,223 INFO L225 Difference]: With dead ends: 587 [2019-10-03 02:45:22,224 INFO L226 Difference]: Without dead ends: 578 [2019-10-03 02:45:22,224 INFO L640 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 [2019-10-03 02:45:22,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2019-10-03 02:45:22,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2019-10-03 02:45:22,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 578 states. [2019-10-03 02:45:22,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 917 transitions. [2019-10-03 02:45:22,252 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 917 transitions. Word has length 117 [2019-10-03 02:45:22,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:22,252 INFO L475 AbstractCegarLoop]: Abstraction has 578 states and 917 transitions. [2019-10-03 02:45:22,252 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 917 transitions. [2019-10-03 02:45:22,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-03 02:45:22,256 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:22,256 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:22,257 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:22,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:22,257 INFO L82 PathProgramCache]: Analyzing trace with hash -2080915130, now seen corresponding path program 1 times [2019-10-03 02:45:22,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:22,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:22,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:22,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:22,261 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:22,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:22,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:22,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:22,436 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:22,437 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:22,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:22,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:22,438 INFO L87 Difference]: Start difference. First operand 578 states and 917 transitions. Second operand 7 states. [2019-10-03 02:45:22,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:22,536 INFO L93 Difference]: Finished difference Result 581 states and 920 transitions. [2019-10-03 02:45:22,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:22,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2019-10-03 02:45:22,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:22,551 INFO L225 Difference]: With dead ends: 581 [2019-10-03 02:45:22,552 INFO L226 Difference]: Without dead ends: 572 [2019-10-03 02:45:22,552 INFO L640 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 [2019-10-03 02:45:22,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-03 02:45:22,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-10-03 02:45:22,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-03 02:45:22,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 904 transitions. [2019-10-03 02:45:22,576 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 904 transitions. Word has length 118 [2019-10-03 02:45:22,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:22,576 INFO L475 AbstractCegarLoop]: Abstraction has 572 states and 904 transitions. [2019-10-03 02:45:22,576 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:22,577 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 904 transitions. [2019-10-03 02:45:22,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-10-03 02:45:22,582 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:22,582 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:22,582 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:22,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:22,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1033464967, now seen corresponding path program 1 times [2019-10-03 02:45:22,583 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:22,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:22,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:22,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:22,589 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:22,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:22,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:22,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:45:22,769 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:22,770 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:45:22,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:45:22,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:45:22,771 INFO L87 Difference]: Start difference. First operand 572 states and 904 transitions. Second operand 7 states. [2019-10-03 02:45:22,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:22,854 INFO L93 Difference]: Finished difference Result 575 states and 907 transitions. [2019-10-03 02:45:22,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:45:22,854 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2019-10-03 02:45:22,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:22,864 INFO L225 Difference]: With dead ends: 575 [2019-10-03 02:45:22,865 INFO L226 Difference]: Without dead ends: 572 [2019-10-03 02:45:22,865 INFO L640 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 [2019-10-03 02:45:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-03 02:45:22,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-10-03 02:45:22,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-03 02:45:22,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 903 transitions. [2019-10-03 02:45:22,893 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 903 transitions. Word has length 118 [2019-10-03 02:45:22,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:22,894 INFO L475 AbstractCegarLoop]: Abstraction has 572 states and 903 transitions. [2019-10-03 02:45:22,894 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:45:22,894 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 903 transitions. [2019-10-03 02:45:22,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2019-10-03 02:45:22,897 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:22,898 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:22,898 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:22,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:22,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1197819858, now seen corresponding path program 1 times [2019-10-03 02:45:22,898 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:22,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:22,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:22,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:22,903 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:23,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:23,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:23,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:23,106 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:23,106 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:23,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:23,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:23,108 INFO L87 Difference]: Start difference. First operand 572 states and 903 transitions. Second operand 5 states. [2019-10-03 02:45:23,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:23,175 INFO L93 Difference]: Finished difference Result 574 states and 904 transitions. [2019-10-03 02:45:23,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:23,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2019-10-03 02:45:23,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:23,181 INFO L225 Difference]: With dead ends: 574 [2019-10-03 02:45:23,181 INFO L226 Difference]: Without dead ends: 572 [2019-10-03 02:45:23,181 INFO L640 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 [2019-10-03 02:45:23,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-03 02:45:23,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-10-03 02:45:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-03 02:45:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 902 transitions. [2019-10-03 02:45:23,200 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 902 transitions. Word has length 119 [2019-10-03 02:45:23,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:23,200 INFO L475 AbstractCegarLoop]: Abstraction has 572 states and 902 transitions. [2019-10-03 02:45:23,201 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 902 transitions. [2019-10-03 02:45:23,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-03 02:45:23,203 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:23,203 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:23,204 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:23,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:23,204 INFO L82 PathProgramCache]: Analyzing trace with hash -2117874534, now seen corresponding path program 1 times [2019-10-03 02:45:23,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:23,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:23,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:23,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:23,209 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:23,357 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:23,358 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:23,358 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:23,359 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:23,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:23,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:23,359 INFO L87 Difference]: Start difference. First operand 572 states and 902 transitions. Second operand 5 states. [2019-10-03 02:45:23,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:23,441 INFO L93 Difference]: Finished difference Result 574 states and 903 transitions. [2019-10-03 02:45:23,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:23,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2019-10-03 02:45:23,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:23,449 INFO L225 Difference]: With dead ends: 574 [2019-10-03 02:45:23,449 INFO L226 Difference]: Without dead ends: 572 [2019-10-03 02:45:23,450 INFO L640 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 [2019-10-03 02:45:23,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-03 02:45:23,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-10-03 02:45:23,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-03 02:45:23,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 901 transitions. [2019-10-03 02:45:23,480 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 901 transitions. Word has length 120 [2019-10-03 02:45:23,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:23,481 INFO L475 AbstractCegarLoop]: Abstraction has 572 states and 901 transitions. [2019-10-03 02:45:23,481 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:23,481 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 901 transitions. [2019-10-03 02:45:23,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-03 02:45:23,484 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:23,484 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:23,485 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:23,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:23,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1349008403, now seen corresponding path program 1 times [2019-10-03 02:45:23,485 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:23,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:23,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:23,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:23,490 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:23,683 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:23,683 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:23,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:23,684 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:23,685 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:23,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:23,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:23,686 INFO L87 Difference]: Start difference. First operand 572 states and 901 transitions. Second operand 5 states. [2019-10-03 02:45:23,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:23,766 INFO L93 Difference]: Finished difference Result 574 states and 902 transitions. [2019-10-03 02:45:23,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:23,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2019-10-03 02:45:23,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:23,773 INFO L225 Difference]: With dead ends: 574 [2019-10-03 02:45:23,774 INFO L226 Difference]: Without dead ends: 572 [2019-10-03 02:45:23,775 INFO L640 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 [2019-10-03 02:45:23,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-03 02:45:23,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-10-03 02:45:23,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-03 02:45:23,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 900 transitions. [2019-10-03 02:45:23,809 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 900 transitions. Word has length 121 [2019-10-03 02:45:23,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:23,810 INFO L475 AbstractCegarLoop]: Abstraction has 572 states and 900 transitions. [2019-10-03 02:45:23,810 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:23,810 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 900 transitions. [2019-10-03 02:45:23,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-03 02:45:23,818 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:23,819 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:23,819 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:23,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:23,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1487182357, now seen corresponding path program 1 times [2019-10-03 02:45:23,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:23,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:23,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:23,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:23,828 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:24,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:24,121 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:24,121 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:45:24,122 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:24,122 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:45:24,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:45:24,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:45:24,123 INFO L87 Difference]: Start difference. First operand 572 states and 900 transitions. Second operand 5 states. [2019-10-03 02:45:24,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:24,176 INFO L93 Difference]: Finished difference Result 574 states and 901 transitions. [2019-10-03 02:45:24,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:45:24,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 122 [2019-10-03 02:45:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:24,182 INFO L225 Difference]: With dead ends: 574 [2019-10-03 02:45:24,182 INFO L226 Difference]: Without dead ends: 572 [2019-10-03 02:45:24,183 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:45:24,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-03 02:45:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-10-03 02:45:24,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-03 02:45:24,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 899 transitions. [2019-10-03 02:45:24,205 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 899 transitions. Word has length 122 [2019-10-03 02:45:24,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:24,206 INFO L475 AbstractCegarLoop]: Abstraction has 572 states and 899 transitions. [2019-10-03 02:45:24,206 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:45:24,206 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 899 transitions. [2019-10-03 02:45:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-10-03 02:45:24,209 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:24,209 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:24,210 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:24,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:24,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1599417670, now seen corresponding path program 1 times [2019-10-03 02:45:24,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:24,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:24,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:24,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:24,216 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:24,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:45:24,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:45:24,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:45:24,383 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:24,383 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:45:24,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:45:24,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:45:24,384 INFO L87 Difference]: Start difference. First operand 572 states and 899 transitions. Second operand 9 states. [2019-10-03 02:45:24,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:24,505 INFO L93 Difference]: Finished difference Result 576 states and 902 transitions. [2019-10-03 02:45:24,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-03 02:45:24,506 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 123 [2019-10-03 02:45:24,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:24,511 INFO L225 Difference]: With dead ends: 576 [2019-10-03 02:45:24,511 INFO L226 Difference]: Without dead ends: 572 [2019-10-03 02:45:24,512 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-03 02:45:24,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2019-10-03 02:45:24,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2019-10-03 02:45:24,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2019-10-03 02:45:24,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 898 transitions. [2019-10-03 02:45:24,541 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 898 transitions. Word has length 123 [2019-10-03 02:45:24,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:24,543 INFO L475 AbstractCegarLoop]: Abstraction has 572 states and 898 transitions. [2019-10-03 02:45:24,543 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:45:24,543 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 898 transitions. [2019-10-03 02:45:24,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-10-03 02:45:24,547 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:45:24,547 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:45:24,548 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:45:24,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:24,549 INFO L82 PathProgramCache]: Analyzing trace with hash -309040120, now seen corresponding path program 1 times [2019-10-03 02:45:24,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:45:24,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:24,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:45:24,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:45:24,555 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:45:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:45:24,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:45:24,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:45:24,744 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:45:24,745 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 124 with the following transitions: [2019-10-03 02:45:24,749 INFO L207 CegarAbsIntRunner]: [55], [56], [62], [63], [315], [319], [322], [379], [380], [547], [550], [709], [758], [760], [762], [878], [881], [978], [981], [986], [989], [1015], [1020], [1053], [1054], [1089], [1091], [1120], [1122], [1125], [1133], [1134], [1170], [1206], [1242], [1278], [1281], [1284], [1317], [1318], [1319], [1368], [1373], [1378], [1383], [1388], [1391], [1395], [1582], [1585], [1607], [1623], [1636], [1639], [1645], [1649], [1747], [1748], [1782], [1785], [1787], [1790], [1868], [1870], [1872], [1875], [1888], [1902], [1916], [1930], [1944], [2018], [2284], [2288], [2291], [2309], [2478], [2479], [2480], [2481], [2482], [2483], [2484], [2485], [2486], [2542], [2543], [2544], [2545], [2546], [2547], [2548], [2549], [2550], [2586], [2587], [2588], [2589], [2618], [2619], [2620], [2621], [2632], [2642], [2643], [2644], [2645], [2648], [2649], [2650], [2676], [2690], [2691], [2692], [2708], [2709], [2710], [2711], [2742], [2743], [2744] [2019-10-03 02:45:24,825 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:45:24,826 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:45:24,948 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:45:24,950 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 171 root evaluator evaluations with a maximum evaluation depth of 0. Performed 171 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 254 variables. [2019-10-03 02:45:24,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:45:24,956 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:45:25,060 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:45:25,061 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:45:25,068 INFO L420 sIntCurrentIteration]: We unified 122 AI predicates to 122 [2019-10-03 02:45:25,069 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:45:25,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:45:25,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:45:25,071 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:45:25,071 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:45:25,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:45:25,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:45:25,072 INFO L87 Difference]: Start difference. First operand 572 states and 898 transitions. Second operand 2 states. [2019-10-03 02:45:25,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:45:25,073 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:45:25,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:45:25,073 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 123 [2019-10-03 02:45:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:45:25,073 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:45:25,073 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:45:25,074 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:45:25,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:45:25,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:45:25,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:45:25,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:45:25,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2019-10-03 02:45:25,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:45:25,075 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:45:25,075 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:45:25,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:45:25,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:45:25,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:45:25 BoogieIcfgContainer [2019-10-03 02:45:25,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:45:25,084 INFO L168 Benchmark]: Toolchain (without parser) took 9737.56 ms. Allocated memory was 138.4 MB in the beginning and 405.3 MB in the end (delta: 266.9 MB). Free memory was 83.3 MB in the beginning and 144.9 MB in the end (delta: -61.7 MB). Peak memory consumption was 205.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:25,086 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 104.5 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:45:25,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1231.42 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 83.1 MB in the beginning and 141.5 MB in the end (delta: -58.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:25,089 INFO L168 Benchmark]: Boogie Preprocessor took 219.67 ms. Allocated memory is still 200.8 MB. Free memory was 141.5 MB in the beginning and 132.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:25,095 INFO L168 Benchmark]: RCFGBuilder took 2814.31 ms. Allocated memory was 200.8 MB in the beginning and 268.4 MB in the end (delta: 67.6 MB). Free memory was 132.7 MB in the beginning and 158.5 MB in the end (delta: -25.8 MB). Peak memory consumption was 95.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:25,096 INFO L168 Benchmark]: TraceAbstraction took 5466.07 ms. Allocated memory was 268.4 MB in the beginning and 405.3 MB in the end (delta: 136.8 MB). Free memory was 158.5 MB in the beginning and 144.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 150.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:45:25,108 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 138.4 MB. Free memory was 104.5 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1231.42 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 83.1 MB in the beginning and 141.5 MB in the end (delta: -58.5 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 219.67 ms. Allocated memory is still 200.8 MB. Free memory was 141.5 MB in the beginning and 132.7 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2814.31 ms. Allocated memory was 200.8 MB in the beginning and 268.4 MB in the end (delta: 67.6 MB). Free memory was 132.7 MB in the beginning and 158.5 MB in the end (delta: -25.8 MB). Peak memory consumption was 95.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5466.07 ms. Allocated memory was 268.4 MB in the beginning and 405.3 MB in the end (delta: 136.8 MB). Free memory was 158.5 MB in the beginning and 144.9 MB in the end (delta: 13.6 MB). Peak memory consumption was 150.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 254]: 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 72 procedures, 895 locations, 1 error locations. SAFE Result, 5.3s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10031 SDtfs, 391 SDslu, 41514 SDs, 0 SdLazy, 574 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 202 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=762occurred 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, 2.2459016393442623 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 1428 NumberOfCodeBlocks, 1428 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1416 ConstructedInterpolants, 0 QuantifiedInterpolants, 203650 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 34/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...