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_spec2_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:29,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:29,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:29,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:29,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:29,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:29,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:29,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:29,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:29,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:29,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:29,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:29,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:29,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:29,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:29,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:29,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:29,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:29,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:29,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:29,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:29,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:29,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:29,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:29,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:29,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:29,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:29,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:29,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:29,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:29,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:29,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:29,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:29,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:29,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:29,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:30,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:30,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:30,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:30,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:30,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:30,003 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 02:48:30,018 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:30,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:30,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:30,020 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:30,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:30,021 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:30,021 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:30,022 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:30,022 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:30,022 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:30,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:30,023 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:30,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:30,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:30,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:30,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:30,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:30,026 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:30,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:30,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:30,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:30,026 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:30,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:30,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:30,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:30,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:30,028 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:30,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:30,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:30,029 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:30,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:30,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:30,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:30,101 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:30,101 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:30,102 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product20.cil.c [2019-09-10 02:48:30,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdce90762/a59ec94d5490405caf0d0e8c9e98a30c/FLAGfa3a097d4 [2019-09-10 02:48:30,735 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:30,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product20.cil.c [2019-09-10 02:48:30,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdce90762/a59ec94d5490405caf0d0e8c9e98a30c/FLAGfa3a097d4 [2019-09-10 02:48:31,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdce90762/a59ec94d5490405caf0d0e8c9e98a30c [2019-09-10 02:48:31,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:31,076 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:31,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:31,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:31,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:31,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6e7385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31, skipping insertion in model container [2019-09-10 02:48:31,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,091 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:31,151 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:31,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:31,550 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:31,649 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:31,683 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:31,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31 WrapperNode [2019-09-10 02:48:31,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:31,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:31,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:31,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:31,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31" (1/1) ... [2019-09-10 02:48:31,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:31,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:31,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:31,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:31,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31" (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 02:48:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:31,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:31,868 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:31,869 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:31,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:31,871 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:31,872 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:48:31,872 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:31,873 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:31,873 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:31,873 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:31,873 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:31,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:31,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:31,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:31,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:31,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:31,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:31,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:48:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:48:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:48:31,878 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:48:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:31,878 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:31,879 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:31,880 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:48:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:31,881 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:31,882 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:31,883 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:31,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:31,885 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:31,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:31,887 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:48:31,887 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:48:31,888 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:48:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:48:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:31,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:31,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:33,048 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:33,048 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:33,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:33 BoogieIcfgContainer [2019-09-10 02:48:33,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:33,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:33,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:33,055 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:33,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:31" (1/3) ... [2019-09-10 02:48:33,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a296ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:33, skipping insertion in model container [2019-09-10 02:48:33,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:31" (2/3) ... [2019-09-10 02:48:33,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a296ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:33, skipping insertion in model container [2019-09-10 02:48:33,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:33" (3/3) ... [2019-09-10 02:48:33,059 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2019-09-10 02:48:33,068 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:33,078 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:33,094 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:33,119 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:33,119 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:33,119 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:33,119 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:33,119 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:33,119 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:33,119 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:33,119 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:33,136 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2019-09-10 02:48:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:48:33,147 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:33,148 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:33,150 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:33,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:33,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1678806906, now seen corresponding path program 1 times [2019-09-10 02:48:33,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:33,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:33,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:33,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:33,208 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:33,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:33,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:33,502 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:33,507 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:33,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:33,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:33,523 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2019-09-10 02:48:33,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:33,569 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2019-09-10 02:48:33,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:33,571 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:48:33,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:33,592 INFO L225 Difference]: With dead ends: 130 [2019-09-10 02:48:33,593 INFO L226 Difference]: Without dead ends: 119 [2019-09-10 02:48:33,594 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 02:48:33,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-09-10 02:48:33,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-09-10 02:48:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-10 02:48:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2019-09-10 02:48:33,642 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 51 [2019-09-10 02:48:33,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:33,642 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2019-09-10 02:48:33,642 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:33,643 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2019-09-10 02:48:33,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:33,646 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:33,646 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:33,647 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:33,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1533869534, now seen corresponding path program 1 times [2019-09-10 02:48:33,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:33,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:33,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:33,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:33,649 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:33,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:33,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:33,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:33,806 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:33,806 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:33,809 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:33,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:33,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:33,810 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 3 states. [2019-09-10 02:48:33,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:33,836 INFO L93 Difference]: Finished difference Result 110 states and 127 transitions. [2019-09-10 02:48:33,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:33,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:48:33,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:33,840 INFO L225 Difference]: With dead ends: 110 [2019-09-10 02:48:33,841 INFO L226 Difference]: Without dead ends: 110 [2019-09-10 02:48:33,841 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 02:48:33,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-10 02:48:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-10 02:48:33,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-10 02:48:33,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2019-09-10 02:48:33,852 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 52 [2019-09-10 02:48:33,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:33,852 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2019-09-10 02:48:33,852 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:33,853 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2019-09-10 02:48:33,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:48:33,855 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:33,855 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:33,855 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:33,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:33,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2046992772, now seen corresponding path program 1 times [2019-09-10 02:48:33,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:33,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:33,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:33,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:33,857 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:34,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:34,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:34,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:34,031 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:34,032 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:34,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:34,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:34,033 INFO L87 Difference]: Start difference. First operand 110 states and 127 transitions. Second operand 7 states. [2019-09-10 02:48:34,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:34,572 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2019-09-10 02:48:34,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:48:34,573 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-10 02:48:34,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:34,582 INFO L225 Difference]: With dead ends: 243 [2019-09-10 02:48:34,582 INFO L226 Difference]: Without dead ends: 243 [2019-09-10 02:48:34,583 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 02:48:34,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-09-10 02:48:34,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 231. [2019-09-10 02:48:34,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-09-10 02:48:34,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 280 transitions. [2019-09-10 02:48:34,641 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 280 transitions. Word has length 57 [2019-09-10 02:48:34,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:34,646 INFO L475 AbstractCegarLoop]: Abstraction has 231 states and 280 transitions. [2019-09-10 02:48:34,646 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:34,646 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 280 transitions. [2019-09-10 02:48:34,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-10 02:48:34,651 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:34,652 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:34,652 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:34,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:34,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1465271355, now seen corresponding path program 1 times [2019-09-10 02:48:34,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:34,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:34,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:34,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:34,657 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:34,856 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:34,856 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:34,857 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:34,857 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:34,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:34,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:34,858 INFO L87 Difference]: Start difference. First operand 231 states and 280 transitions. Second operand 6 states. [2019-09-10 02:48:35,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:35,060 INFO L93 Difference]: Finished difference Result 416 states and 506 transitions. [2019-09-10 02:48:35,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:35,062 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-10 02:48:35,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:35,068 INFO L225 Difference]: With dead ends: 416 [2019-09-10 02:48:35,069 INFO L226 Difference]: Without dead ends: 416 [2019-09-10 02:48:35,069 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:48:35,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-09-10 02:48:35,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 410. [2019-09-10 02:48:35,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-09-10 02:48:35,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 500 transitions. [2019-09-10 02:48:35,130 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 500 transitions. Word has length 62 [2019-09-10 02:48:35,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:35,130 INFO L475 AbstractCegarLoop]: Abstraction has 410 states and 500 transitions. [2019-09-10 02:48:35,130 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:35,130 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 500 transitions. [2019-09-10 02:48:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 02:48:35,139 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:35,139 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:35,140 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:35,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:35,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1017707479, now seen corresponding path program 1 times [2019-09-10 02:48:35,141 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:35,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:35,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:35,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:35,142 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:35,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:35,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:35,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:35,256 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:35,257 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:35,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:35,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:35,259 INFO L87 Difference]: Start difference. First operand 410 states and 500 transitions. Second operand 6 states. [2019-09-10 02:48:35,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:35,434 INFO L93 Difference]: Finished difference Result 302 states and 349 transitions. [2019-09-10 02:48:35,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:35,434 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-09-10 02:48:35,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:35,435 INFO L225 Difference]: With dead ends: 302 [2019-09-10 02:48:35,435 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:48:35,436 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:48:35,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:48:35,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:48:35,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:48:35,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:48:35,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-10 02:48:35,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:35,437 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:48:35,437 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:35,437 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:48:35,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:48:35,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:48:35 BoogieIcfgContainer [2019-09-10 02:48:35,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:48:35,445 INFO L168 Benchmark]: Toolchain (without parser) took 4367.87 ms. Allocated memory was 127.9 MB in the beginning and 217.6 MB in the end (delta: 89.7 MB). Free memory was 98.4 MB in the beginning and 111.6 MB in the end (delta: -13.2 MB). Peak memory consumption was 76.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:35,446 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 110.1 MB. Free memory was 76.5 MB in the beginning and 76.4 MB in the end (delta: 105.0 kB). Peak memory consumption was 105.0 kB. Max. memory is 7.1 GB. [2019-09-10 02:48:35,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.82 ms. Allocated memory was 127.9 MB in the beginning and 163.1 MB in the end (delta: 35.1 MB). Free memory was 98.2 MB in the beginning and 134.6 MB in the end (delta: -36.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:35,448 INFO L168 Benchmark]: Boogie Preprocessor took 100.10 ms. Allocated memory is still 163.1 MB. Free memory was 134.3 MB in the beginning and 129.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:35,449 INFO L168 Benchmark]: RCFGBuilder took 1265.38 ms. Allocated memory was 163.1 MB in the beginning and 186.6 MB in the end (delta: 23.6 MB). Free memory was 129.9 MB in the beginning and 125.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 52.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:35,450 INFO L168 Benchmark]: TraceAbstraction took 2391.37 ms. Allocated memory was 186.6 MB in the beginning and 217.6 MB in the end (delta: 30.9 MB). Free memory was 125.4 MB in the beginning and 111.6 MB in the end (delta: 13.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:35,454 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 110.1 MB. Free memory was 76.5 MB in the beginning and 76.4 MB in the end (delta: 105.0 kB). Peak memory consumption was 105.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 606.82 ms. Allocated memory was 127.9 MB in the beginning and 163.1 MB in the end (delta: 35.1 MB). Free memory was 98.2 MB in the beginning and 134.6 MB in the end (delta: -36.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.10 ms. Allocated memory is still 163.1 MB. Free memory was 134.3 MB in the beginning and 129.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1265.38 ms. Allocated memory was 163.1 MB in the beginning and 186.6 MB in the end (delta: 23.6 MB). Free memory was 129.9 MB in the beginning and 125.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 52.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2391.37 ms. Allocated memory was 186.6 MB in the beginning and 217.6 MB in the end (delta: 30.9 MB). Free memory was 125.4 MB in the beginning and 111.6 MB in the end (delta: 13.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 685]: 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 40 procedures, 229 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 673 SDtfs, 367 SDslu, 1361 SDs, 0 SdLazy, 309 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred in iteration=4, 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, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 26703 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...