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-efa34d5 [2019-09-16 17:08:13,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:13,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:13,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:13,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:13,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:13,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:13,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:13,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:13,936 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:13,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:13,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:13,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:13,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:13,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:13,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:13,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:13,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:13,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:13,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:13,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:13,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:13,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:13,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:13,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:13,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:13,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:13,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:13,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:13,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:13,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:13,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:13,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:13,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:13,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:13,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:13,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:13,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:13,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:13,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:13,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:13,979 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 [2019-09-16 17:08:13,994 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:13,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:13,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:13,995 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:13,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:13,996 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:13,996 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:13,997 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:13,997 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:13,997 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:13,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:13,998 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:13,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:13,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:13,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:13,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:13,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:13,999 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:13,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:14,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:14,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:14,000 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:14,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:14,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:14,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:14,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:14,001 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:14,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:14,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:14,002 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:14,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:14,059 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:14,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:14,063 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:14,063 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:14,064 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product20.cil.c [2019-09-16 17:08:14,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a61527399/1d38410db58948ebbbe56163df0044c2/FLAG9c3792bb5 [2019-09-16 17:08:14,684 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:14,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product20.cil.c [2019-09-16 17:08:14,696 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a61527399/1d38410db58948ebbbe56163df0044c2/FLAG9c3792bb5 [2019-09-16 17:08:14,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a61527399/1d38410db58948ebbbe56163df0044c2 [2019-09-16 17:08:14,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:14,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:14,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:14,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:14,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:14,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26d65d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:14, skipping insertion in model container [2019-09-16 17:08:14,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:14" (1/1) ... [2019-09-16 17:08:14,967 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:15,030 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:15,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:15,491 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:15,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:15,622 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:15,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15 WrapperNode [2019-09-16 17:08:15,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:15,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:15,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:15,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:15,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (1/1) ... [2019-09-16 17:08:15,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:15,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:15,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:15,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:15,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (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 [2019-09-16 17:08:15,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:15,787 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:15,788 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:08:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:15,789 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:15,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:08:15,791 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:08:15,792 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:08:15,793 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:08:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:15,793 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:15,794 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:15,795 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:08:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:15,796 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:15,797 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:15,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:15,799 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:08:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:08:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:15,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:08:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:08:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:15,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:16,900 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:16,900 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:16,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:16 BoogieIcfgContainer [2019-09-16 17:08:16,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:16,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:16,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:16,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:16,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:14" (1/3) ... [2019-09-16 17:08:16,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d21bd96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:16, skipping insertion in model container [2019-09-16 17:08:16,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:15" (2/3) ... [2019-09-16 17:08:16,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d21bd96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:16, skipping insertion in model container [2019-09-16 17:08:16,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:16" (3/3) ... [2019-09-16 17:08:16,912 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2019-09-16 17:08:16,922 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:16,932 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:16,950 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:16,977 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:16,978 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:16,978 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:16,978 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:16,978 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:16,978 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:16,978 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:16,979 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:16,996 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2019-09-16 17:08:17,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:17,010 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:17,011 INFO L407 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] [2019-09-16 17:08:17,014 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:17,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:17,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1678806906, now seen corresponding path program 1 times [2019-09-16 17:08:17,022 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:17,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:17,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,082 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:17,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:17,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:17,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:17,458 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:17,464 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:17,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:17,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:17,481 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2019-09-16 17:08:17,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:17,522 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2019-09-16 17:08:17,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:17,524 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:17,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:17,539 INFO L225 Difference]: With dead ends: 130 [2019-09-16 17:08:17,539 INFO L226 Difference]: Without dead ends: 119 [2019-09-16 17:08:17,541 INFO L636 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 [2019-09-16 17:08:17,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-09-16 17:08:17,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-09-16 17:08:17,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-16 17:08:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2019-09-16 17:08:17,592 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 51 [2019-09-16 17:08:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:17,593 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2019-09-16 17:08:17,593 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:17,593 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2019-09-16 17:08:17,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:17,597 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:17,597 INFO L407 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] [2019-09-16 17:08:17,597 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:17,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:17,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1533869534, now seen corresponding path program 1 times [2019-09-16 17:08:17,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:17,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:17,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,601 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:17,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:17,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:17,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:17,715 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:17,718 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:17,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:17,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:17,720 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 3 states. [2019-09-16 17:08:17,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:17,742 INFO L93 Difference]: Finished difference Result 110 states and 127 transitions. [2019-09-16 17:08:17,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:17,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:17,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:17,745 INFO L225 Difference]: With dead ends: 110 [2019-09-16 17:08:17,745 INFO L226 Difference]: Without dead ends: 110 [2019-09-16 17:08:17,746 INFO L636 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 [2019-09-16 17:08:17,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-16 17:08:17,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-16 17:08:17,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-16 17:08:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2019-09-16 17:08:17,759 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 52 [2019-09-16 17:08:17,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:17,759 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2019-09-16 17:08:17,759 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2019-09-16 17:08:17,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:08:17,765 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:17,765 INFO L407 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] [2019-09-16 17:08:17,766 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:17,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:17,766 INFO L82 PathProgramCache]: Analyzing trace with hash 2046992772, now seen corresponding path program 1 times [2019-09-16 17:08:17,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:17,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:17,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:17,770 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:17,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:17,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:17,953 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:17,954 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:17,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:17,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:17,955 INFO L87 Difference]: Start difference. First operand 110 states and 127 transitions. Second operand 7 states. [2019-09-16 17:08:18,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:18,449 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2019-09-16 17:08:18,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:18,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-16 17:08:18,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:18,458 INFO L225 Difference]: With dead ends: 243 [2019-09-16 17:08:18,458 INFO L226 Difference]: Without dead ends: 243 [2019-09-16 17:08:18,459 INFO L636 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 [2019-09-16 17:08:18,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-09-16 17:08:18,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 231. [2019-09-16 17:08:18,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-09-16 17:08:18,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 280 transitions. [2019-09-16 17:08:18,516 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 280 transitions. Word has length 57 [2019-09-16 17:08:18,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:18,518 INFO L475 AbstractCegarLoop]: Abstraction has 231 states and 280 transitions. [2019-09-16 17:08:18,518 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 280 transitions. [2019-09-16 17:08:18,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-16 17:08:18,525 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:18,526 INFO L407 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] [2019-09-16 17:08:18,526 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:18,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:18,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1465271355, now seen corresponding path program 1 times [2019-09-16 17:08:18,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:18,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:18,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:18,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:18,540 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:18,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:18,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:18,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:18,716 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:18,717 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:18,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:18,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:18,717 INFO L87 Difference]: Start difference. First operand 231 states and 280 transitions. Second operand 6 states. [2019-09-16 17:08:18,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:18,914 INFO L93 Difference]: Finished difference Result 416 states and 506 transitions. [2019-09-16 17:08:18,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:18,914 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-16 17:08:18,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:18,919 INFO L225 Difference]: With dead ends: 416 [2019-09-16 17:08:18,919 INFO L226 Difference]: Without dead ends: 416 [2019-09-16 17:08:18,920 INFO L636 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 [2019-09-16 17:08:18,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-09-16 17:08:18,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 410. [2019-09-16 17:08:18,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-09-16 17:08:18,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 500 transitions. [2019-09-16 17:08:18,948 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 500 transitions. Word has length 62 [2019-09-16 17:08:18,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:18,949 INFO L475 AbstractCegarLoop]: Abstraction has 410 states and 500 transitions. [2019-09-16 17:08:18,951 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:18,951 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 500 transitions. [2019-09-16 17:08:18,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-16 17:08:18,956 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:18,961 INFO L407 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] [2019-09-16 17:08:18,962 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:18,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:18,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1017707479, now seen corresponding path program 1 times [2019-09-16 17:08:18,962 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:18,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:18,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:18,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:18,965 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:19,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:19,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:19,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:19,051 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:19,052 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:19,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:19,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:19,052 INFO L87 Difference]: Start difference. First operand 410 states and 500 transitions. Second operand 6 states. [2019-09-16 17:08:19,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:19,225 INFO L93 Difference]: Finished difference Result 302 states and 349 transitions. [2019-09-16 17:08:19,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:19,227 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-09-16 17:08:19,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:19,228 INFO L225 Difference]: With dead ends: 302 [2019-09-16 17:08:19,228 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:19,228 INFO L636 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 [2019-09-16 17:08:19,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:19,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:19,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:19,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-16 17:08:19,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:19,229 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:19,230 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:19,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:19,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:19,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:19 BoogieIcfgContainer [2019-09-16 17:08:19,236 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:19,239 INFO L168 Benchmark]: Toolchain (without parser) took 4287.76 ms. Allocated memory was 133.2 MB in the beginning and 260.6 MB in the end (delta: 127.4 MB). Free memory was 88.6 MB in the beginning and 145.0 MB in the end (delta: -56.4 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,240 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.33 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.4 MB in the beginning and 163.1 MB in the end (delta: -74.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,244 INFO L168 Benchmark]: Boogie Preprocessor took 103.65 ms. Allocated memory is still 199.8 MB. Free memory was 163.1 MB in the beginning and 158.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,245 INFO L168 Benchmark]: RCFGBuilder took 1175.11 ms. Allocated memory was 199.8 MB in the beginning and 224.4 MB in the end (delta: 24.6 MB). Free memory was 158.7 MB in the beginning and 190.9 MB in the end (delta: -32.2 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,247 INFO L168 Benchmark]: TraceAbstraction took 2331.94 ms. Allocated memory was 224.4 MB in the beginning and 260.6 MB in the end (delta: 36.2 MB). Free memory was 190.9 MB in the beginning and 145.0 MB in the end (delta: 45.9 MB). Peak memory consumption was 82.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:19,257 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.33 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.4 MB in the beginning and 163.1 MB in the end (delta: -74.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.65 ms. Allocated memory is still 199.8 MB. Free memory was 163.1 MB in the beginning and 158.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1175.11 ms. Allocated memory was 199.8 MB in the beginning and 224.4 MB in the end (delta: 24.6 MB). Free memory was 158.7 MB in the beginning and 190.9 MB in the end (delta: -32.2 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2331.94 ms. Allocated memory was 224.4 MB in the beginning and 260.6 MB in the end (delta: 36.2 MB). Free memory was 190.9 MB in the beginning and 145.0 MB in the end (delta: 45.9 MB). Peak memory consumption was 82.1 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, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 673 SDtfs, 367 SDslu, 1361 SDs, 0 SdLazy, 309 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s 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...