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/minepump_spec5_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:50:50,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:50:50,998 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:50:51,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:50:51,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:50:51,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:50:51,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:50:51,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:50:51,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:50:51,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:50:51,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:50:51,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:50:51,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:50:51,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:50:51,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:50:51,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:50:51,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:50:51,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:50:51,039 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:50:51,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:50:51,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:50:51,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:50:51,049 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:50:51,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:50:51,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:50:51,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:50:51,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:50:51,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:50:51,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:50:51,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:50:51,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:50:51,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:50:51,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:50:51,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:50:51,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:50:51,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:50:51,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:50:51,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:50:51,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:50:51,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:50:51,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:50:51,069 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:50:51,092 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:50:51,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:50:51,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:50:51,093 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:50:51,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:50:51,094 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:50:51,094 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:50:51,095 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:50:51,095 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:50:51,095 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:50:51,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:50:51,096 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:50:51,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:50:51,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:50:51,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:50:51,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:50:51,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:50:51,097 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:50:51,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:50:51,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:50:51,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:50:51,098 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:50:51,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:50:51,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:51,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:50:51,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:50:51,100 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:50:51,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:50:51,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:50:51,100 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:50:51,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:50:51,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:50:51,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:50:51,149 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:50:51,150 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:50:51,151 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product27.cil.c [2019-09-10 02:50:51,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9067e5db/3fed0683746f4e91a321d4afa82d54b0/FLAGafc9de362 [2019-09-10 02:50:51,763 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:50:51,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product27.cil.c [2019-09-10 02:50:51,787 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9067e5db/3fed0683746f4e91a321d4afa82d54b0/FLAGafc9de362 [2019-09-10 02:50:52,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9067e5db/3fed0683746f4e91a321d4afa82d54b0 [2019-09-10 02:50:52,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:50:52,076 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:50:52,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:52,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:50:52,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:50:52,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:52" (1/1) ... [2019-09-10 02:50:52,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14397b78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52, skipping insertion in model container [2019-09-10 02:50:52,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:52" (1/1) ... [2019-09-10 02:50:52,091 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:50:52,147 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:50:52,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:52,634 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:50:52,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:52,820 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:50:52,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52 WrapperNode [2019-09-10 02:50:52,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:52,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:50:52,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:50:52,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:50:52,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52" (1/1) ... [2019-09-10 02:50:52,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52" (1/1) ... [2019-09-10 02:50:52,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52" (1/1) ... [2019-09-10 02:50:52,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52" (1/1) ... [2019-09-10 02:50:52,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52" (1/1) ... [2019-09-10 02:50:52,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52" (1/1) ... [2019-09-10 02:50:52,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52" (1/1) ... [2019-09-10 02:50:52,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:50:52,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:50:52,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:50:52,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:50:52,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:50:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:50:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:50:52,974 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:50:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:50:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:50:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:50:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:50:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:50:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:52,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:50:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:50:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:50:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:50:52,976 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:50:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:50:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:50:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:50:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:50:52,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:50:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:50:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:50:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:50:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:50:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:50:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:50:52,978 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:50:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:50:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:50:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:50:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:50:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:50:52,979 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:50:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:50:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:50:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:50:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:50:52,980 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:50:52,980 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:50:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:50:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:50:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:50:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:50:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:50:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:50:52,981 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:50:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:50:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:50:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:50:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:50:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:50:52,982 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:50:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:50:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:50:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:50:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:50:52,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:50:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:50:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:50:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:52,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:50:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:50:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:50:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:50:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:50:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:50:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:50:52,985 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:50:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:50:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:50:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:50:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:50:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:50:52,986 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:50:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:50:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:50:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:50:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:50:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:50:52,987 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:50:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:50:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:50:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:50:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:50:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:50:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:50:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:50:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:50:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:50:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:50:54,079 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:50:54,079 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:50:54,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:54 BoogieIcfgContainer [2019-09-10 02:50:54,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:50:54,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:50:54,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:50:54,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:50:54,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:50:52" (1/3) ... [2019-09-10 02:50:54,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36736a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:54, skipping insertion in model container [2019-09-10 02:50:54,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:52" (2/3) ... [2019-09-10 02:50:54,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36736a7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:54, skipping insertion in model container [2019-09-10 02:50:54,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:54" (3/3) ... [2019-09-10 02:50:54,090 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product27.cil.c [2019-09-10 02:50:54,100 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:50:54,111 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:50:54,128 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:50:54,160 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:50:54,160 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:50:54,160 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:50:54,160 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:50:54,160 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:50:54,161 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:50:54,161 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:50:54,161 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:50:54,178 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2019-09-10 02:50:54,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:50:54,191 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:54,192 INFO L399 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] [2019-09-10 02:50:54,195 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:54,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:54,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1061084108, now seen corresponding path program 1 times [2019-09-10 02:50:54,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:54,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:54,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:54,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:54,254 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:54,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:50:54,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:54,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:50:54,504 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:54,510 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:54,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:54,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:54,533 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2019-09-10 02:50:54,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:54,579 INFO L93 Difference]: Finished difference Result 131 states and 153 transitions. [2019-09-10 02:50:54,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:54,588 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-10 02:50:54,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:54,603 INFO L225 Difference]: With dead ends: 131 [2019-09-10 02:50:54,603 INFO L226 Difference]: Without dead ends: 120 [2019-09-10 02:50:54,605 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:54,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-09-10 02:50:54,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-09-10 02:50:54,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-09-10 02:50:54,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 141 transitions. [2019-09-10 02:50:54,655 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 141 transitions. Word has length 59 [2019-09-10 02:50:54,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:54,656 INFO L475 AbstractCegarLoop]: Abstraction has 120 states and 141 transitions. [2019-09-10 02:50:54,656 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:54,656 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 141 transitions. [2019-09-10 02:50:54,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-10 02:50:54,661 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:54,661 INFO L399 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] [2019-09-10 02:50:54,661 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:54,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:54,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1539374261, now seen corresponding path program 1 times [2019-09-10 02:50:54,662 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:54,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:54,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:54,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:54,663 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:54,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:54,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:50:54,903 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:54,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:54,904 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:54,906 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:54,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:54,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:54,906 INFO L87 Difference]: Start difference. First operand 120 states and 141 transitions. Second operand 7 states. [2019-09-10 02:50:55,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:55,439 INFO L93 Difference]: Finished difference Result 277 states and 338 transitions. [2019-09-10 02:50:55,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:50:55,440 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-09-10 02:50:55,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:55,445 INFO L225 Difference]: With dead ends: 277 [2019-09-10 02:50:55,446 INFO L226 Difference]: Without dead ends: 277 [2019-09-10 02:50:55,447 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:55,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2019-09-10 02:50:55,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 269. [2019-09-10 02:50:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-09-10 02:50:55,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 332 transitions. [2019-09-10 02:50:55,518 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 332 transitions. Word has length 64 [2019-09-10 02:50:55,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:55,518 INFO L475 AbstractCegarLoop]: Abstraction has 269 states and 332 transitions. [2019-09-10 02:50:55,518 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:55,519 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 332 transitions. [2019-09-10 02:50:55,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 02:50:55,522 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:55,522 INFO L399 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] [2019-09-10 02:50:55,522 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:55,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:55,523 INFO L82 PathProgramCache]: Analyzing trace with hash -229520433, now seen corresponding path program 1 times [2019-09-10 02:50:55,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:55,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:55,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:55,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:55,525 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:55,618 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:50:55,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:55,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:55,621 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:55,621 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:55,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:55,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:55,622 INFO L87 Difference]: Start difference. First operand 269 states and 332 transitions. Second operand 3 states. [2019-09-10 02:50:55,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:55,639 INFO L93 Difference]: Finished difference Result 242 states and 294 transitions. [2019-09-10 02:50:55,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:55,639 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-10 02:50:55,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:55,645 INFO L225 Difference]: With dead ends: 242 [2019-09-10 02:50:55,646 INFO L226 Difference]: Without dead ends: 242 [2019-09-10 02:50:55,646 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:55,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-09-10 02:50:55,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2019-09-10 02:50:55,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2019-09-10 02:50:55,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 294 transitions. [2019-09-10 02:50:55,704 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 294 transitions. Word has length 68 [2019-09-10 02:50:55,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:55,704 INFO L475 AbstractCegarLoop]: Abstraction has 242 states and 294 transitions. [2019-09-10 02:50:55,704 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:55,705 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 294 transitions. [2019-09-10 02:50:55,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 02:50:55,709 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:55,710 INFO L399 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] [2019-09-10 02:50:55,710 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:55,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:55,713 INFO L82 PathProgramCache]: Analyzing trace with hash 188858379, now seen corresponding path program 1 times [2019-09-10 02:50:55,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:55,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:55,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:55,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:55,715 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:55,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:50:55,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:55,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:55,864 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:55,864 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:55,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:55,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:55,866 INFO L87 Difference]: Start difference. First operand 242 states and 294 transitions. Second operand 7 states. [2019-09-10 02:50:56,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:56,277 INFO L93 Difference]: Finished difference Result 188 states and 216 transitions. [2019-09-10 02:50:56,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:50:56,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-09-10 02:50:56,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:56,279 INFO L225 Difference]: With dead ends: 188 [2019-09-10 02:50:56,279 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:50:56,280 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-10 02:50:56,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:50:56,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:50:56,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:50:56,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:50:56,281 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2019-09-10 02:50:56,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:56,281 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:50:56,281 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:56,284 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:50:56,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:50:56,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:50:56 BoogieIcfgContainer [2019-09-10 02:50:56,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:50:56,294 INFO L168 Benchmark]: Toolchain (without parser) took 4217.09 ms. Allocated memory was 133.7 MB in the beginning and 260.6 MB in the end (delta: 126.9 MB). Free memory was 88.4 MB in the beginning and 159.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 55.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:56,295 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 133.7 MB. Free memory is still 107.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:50:56,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.63 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 88.4 MB in the beginning and 164.9 MB in the end (delta: -76.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:56,299 INFO L168 Benchmark]: Boogie Preprocessor took 89.54 ms. Allocated memory is still 199.8 MB. Free memory was 164.9 MB in the beginning and 160.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:56,300 INFO L168 Benchmark]: RCFGBuilder took 1168.95 ms. Allocated memory was 199.8 MB in the beginning and 226.0 MB in the end (delta: 26.2 MB). Free memory was 160.5 MB in the beginning and 191.6 MB in the end (delta: -31.1 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:56,302 INFO L168 Benchmark]: TraceAbstraction took 2208.88 ms. Allocated memory was 226.0 MB in the beginning and 260.6 MB in the end (delta: 34.6 MB). Free memory was 191.6 MB in the beginning and 159.7 MB in the end (delta: 31.9 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:56,311 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 133.7 MB. Free memory is still 107.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 745.63 ms. Allocated memory was 133.7 MB in the beginning and 199.8 MB in the end (delta: 66.1 MB). Free memory was 88.4 MB in the beginning and 164.9 MB in the end (delta: -76.5 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.54 ms. Allocated memory is still 199.8 MB. Free memory was 164.9 MB in the beginning and 160.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1168.95 ms. Allocated memory was 199.8 MB in the beginning and 226.0 MB in the end (delta: 26.2 MB). Free memory was 160.5 MB in the beginning and 191.6 MB in the end (delta: -31.1 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2208.88 ms. Allocated memory was 226.0 MB in the beginning and 260.6 MB in the end (delta: 34.6 MB). Free memory was 191.6 MB in the beginning and 159.7 MB in the end (delta: 31.9 MB). Peak memory consumption was 66.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 595]: 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 41 procedures, 237 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 532 SDtfs, 327 SDslu, 843 SDs, 0 SdLazy, 400 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=269occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 257 ConstructedInterpolants, 0 QuantifiedInterpolants, 27246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...