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_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:19,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:19,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:19,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:19,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:19,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:19,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:19,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:19,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:19,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:19,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:19,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:19,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:19,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:19,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:19,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:19,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:19,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:19,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:19,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:19,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:19,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:19,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:19,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:19,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:19,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:19,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:19,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:19,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:19,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:19,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:19,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:19,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:19,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:19,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:19,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:19,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:19,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:19,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:19,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:19,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:19,997 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 02:48:20,011 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:20,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:20,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:20,012 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:20,013 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:20,013 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:20,013 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:20,014 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:20,014 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:20,014 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:20,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:20,015 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:20,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:20,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:20,016 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:20,016 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:20,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:20,016 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:20,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:20,017 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:20,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:20,017 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:20,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:20,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:20,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:20,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:20,018 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:20,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:20,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:20,019 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:20,046 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:20,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:20,068 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:20,070 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:20,070 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:20,071 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product04.cil.c [2019-09-10 02:48:20,149 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c7b05f6/ab09b481772945a28c2ebf830bba5b1d/FLAG6fa1c4eb0 [2019-09-10 02:48:20,693 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:20,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product04.cil.c [2019-09-10 02:48:20,707 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c7b05f6/ab09b481772945a28c2ebf830bba5b1d/FLAG6fa1c4eb0 [2019-09-10 02:48:21,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37c7b05f6/ab09b481772945a28c2ebf830bba5b1d [2019-09-10 02:48:21,069 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:21,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:21,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:21,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:21,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:21,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ea8c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21, skipping insertion in model container [2019-09-10 02:48:21,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,085 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:21,152 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:21,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:21,614 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:21,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:21,780 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:21,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21 WrapperNode [2019-09-10 02:48:21,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:21,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:21,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:21,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:21,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21" (1/1) ... [2019-09-10 02:48:21,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:21,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:21,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:21,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:21,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21" (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 02:48:21,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:21,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:21,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:21,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:21,950 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:21,951 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:21,952 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:21,953 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:21,954 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:21,954 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-10 02:48:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:48:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:21,955 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:21,956 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:21,956 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:21,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:21,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:48:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-10 02:48:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:23,101 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:23,102 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:23,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:23 BoogieIcfgContainer [2019-09-10 02:48:23,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:23,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:23,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:23,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:23,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:21" (1/3) ... [2019-09-10 02:48:23,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7ffe1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:23, skipping insertion in model container [2019-09-10 02:48:23,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:21" (2/3) ... [2019-09-10 02:48:23,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7ffe1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:23, skipping insertion in model container [2019-09-10 02:48:23,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:23" (3/3) ... [2019-09-10 02:48:23,114 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product04.cil.c [2019-09-10 02:48:23,125 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:23,135 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:23,153 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:23,188 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:23,188 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:23,188 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:23,188 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:23,189 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:23,189 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:23,189 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:23,189 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:23,209 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2019-09-10 02:48:23,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:48:23,223 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:23,224 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 02:48:23,227 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:23,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:23,233 INFO L82 PathProgramCache]: Analyzing trace with hash 972892505, now seen corresponding path program 1 times [2019-09-10 02:48:23,236 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:23,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:23,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:23,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:23,288 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:23,637 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 02:48:23,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:23,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:23,640 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:23,647 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:23,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:23,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:23,666 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2019-09-10 02:48:23,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:23,713 INFO L93 Difference]: Finished difference Result 110 states and 126 transitions. [2019-09-10 02:48:23,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:23,716 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:48:23,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:23,734 INFO L225 Difference]: With dead ends: 110 [2019-09-10 02:48:23,739 INFO L226 Difference]: Without dead ends: 99 [2019-09-10 02:48:23,743 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 02:48:23,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-10 02:48:23,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-10 02:48:23,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-10 02:48:23,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2019-09-10 02:48:23,834 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 51 [2019-09-10 02:48:23,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:23,835 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2019-09-10 02:48:23,835 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:23,836 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2019-09-10 02:48:23,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:23,843 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:23,844 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 02:48:23,844 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:23,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:23,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1607408945, now seen corresponding path program 1 times [2019-09-10 02:48:23,846 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:23,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:23,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:23,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:23,848 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:24,013 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 02:48:24,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:24,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:24,015 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:24,017 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:24,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:24,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:24,018 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand 3 states. [2019-09-10 02:48:24,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:24,043 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2019-09-10 02:48:24,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:24,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:48:24,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:24,047 INFO L225 Difference]: With dead ends: 90 [2019-09-10 02:48:24,047 INFO L226 Difference]: Without dead ends: 90 [2019-09-10 02:48:24,048 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 02:48:24,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-09-10 02:48:24,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-09-10 02:48:24,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-09-10 02:48:24,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2019-09-10 02:48:24,073 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 52 [2019-09-10 02:48:24,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:24,074 INFO L475 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2019-09-10 02:48:24,074 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:24,074 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2019-09-10 02:48:24,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:48:24,081 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:24,081 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 02:48:24,082 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:24,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:24,083 INFO L82 PathProgramCache]: Analyzing trace with hash -712810545, now seen corresponding path program 1 times [2019-09-10 02:48:24,084 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:24,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:24,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:24,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:24,085 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:24,274 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 02:48:24,274 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:24,274 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:24,275 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:24,275 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:24,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:24,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:24,276 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand 7 states. [2019-09-10 02:48:24,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:24,646 INFO L93 Difference]: Finished difference Result 203 states and 242 transitions. [2019-09-10 02:48:24,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:48:24,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-10 02:48:24,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:24,651 INFO L225 Difference]: With dead ends: 203 [2019-09-10 02:48:24,651 INFO L226 Difference]: Without dead ends: 203 [2019-09-10 02:48:24,652 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 02:48:24,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-09-10 02:48:24,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 179. [2019-09-10 02:48:24,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-09-10 02:48:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 214 transitions. [2019-09-10 02:48:24,694 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 214 transitions. Word has length 57 [2019-09-10 02:48:24,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:24,696 INFO L475 AbstractCegarLoop]: Abstraction has 179 states and 214 transitions. [2019-09-10 02:48:24,696 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:24,696 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 214 transitions. [2019-09-10 02:48:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 02:48:24,701 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:24,701 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] [2019-09-10 02:48:24,702 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:24,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:24,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1899205419, now seen corresponding path program 1 times [2019-09-10 02:48:24,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:24,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:24,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:24,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:24,704 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:24,840 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 02:48:24,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:24,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:24,841 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:24,842 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:24,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:24,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:24,843 INFO L87 Difference]: Start difference. First operand 179 states and 214 transitions. Second operand 6 states. [2019-09-10 02:48:25,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:25,119 INFO L93 Difference]: Finished difference Result 312 states and 374 transitions. [2019-09-10 02:48:25,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:48:25,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2019-09-10 02:48:25,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:25,124 INFO L225 Difference]: With dead ends: 312 [2019-09-10 02:48:25,124 INFO L226 Difference]: Without dead ends: 312 [2019-09-10 02:48:25,124 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 02:48:25,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2019-09-10 02:48:25,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 306. [2019-09-10 02:48:25,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-09-10 02:48:25,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 368 transitions. [2019-09-10 02:48:25,146 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 368 transitions. Word has length 60 [2019-09-10 02:48:25,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:25,147 INFO L475 AbstractCegarLoop]: Abstraction has 306 states and 368 transitions. [2019-09-10 02:48:25,147 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:25,147 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 368 transitions. [2019-09-10 02:48:25,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-10 02:48:25,148 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:25,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:48:25,149 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:25,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:25,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1357836985, now seen corresponding path program 1 times [2019-09-10 02:48:25,149 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:25,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:25,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:25,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:25,151 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:25,230 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 02:48:25,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:25,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:48:25,231 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:25,233 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:48:25,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:48:25,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:48:25,235 INFO L87 Difference]: Start difference. First operand 306 states and 368 transitions. Second operand 6 states. [2019-09-10 02:48:25,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:25,405 INFO L93 Difference]: Finished difference Result 274 states and 317 transitions. [2019-09-10 02:48:25,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:25,406 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-09-10 02:48:25,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:25,407 INFO L225 Difference]: With dead ends: 274 [2019-09-10 02:48:25,407 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:48:25,407 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 02:48:25,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:48:25,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:48:25,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:48:25,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:48:25,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2019-09-10 02:48:25,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:25,408 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:48:25,409 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:48:25,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:48:25,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:48:25,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:48:25 BoogieIcfgContainer [2019-09-10 02:48:25,415 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:48:25,419 INFO L168 Benchmark]: Toolchain (without parser) took 4346.68 ms. Allocated memory was 134.7 MB in the beginning and 255.9 MB in the end (delta: 121.1 MB). Free memory was 90.0 MB in the beginning and 160.0 MB in the end (delta: -70.0 MB). Peak memory consumption was 51.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,420 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.13 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 89.8 MB in the beginning and 164.0 MB in the end (delta: -74.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,423 INFO L168 Benchmark]: Boogie Preprocessor took 109.80 ms. Allocated memory is still 200.8 MB. Free memory was 164.0 MB in the beginning and 159.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,425 INFO L168 Benchmark]: RCFGBuilder took 1211.84 ms. Allocated memory was 200.8 MB in the beginning and 228.6 MB in the end (delta: 27.8 MB). Free memory was 159.8 MB in the beginning and 194.0 MB in the end (delta: -34.2 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,426 INFO L168 Benchmark]: TraceAbstraction took 2310.52 ms. Allocated memory was 228.6 MB in the beginning and 255.9 MB in the end (delta: 27.3 MB). Free memory was 194.0 MB in the beginning and 160.0 MB in the end (delta: 34.0 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:48:25,437 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 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.13 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 89.8 MB in the beginning and 164.0 MB in the end (delta: -74.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.80 ms. Allocated memory is still 200.8 MB. Free memory was 164.0 MB in the beginning and 159.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1211.84 ms. Allocated memory was 200.8 MB in the beginning and 228.6 MB in the end (delta: 27.8 MB). Free memory was 159.8 MB in the beginning and 194.0 MB in the end (delta: -34.2 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2310.52 ms. Allocated memory was 228.6 MB in the beginning and 255.9 MB in the end (delta: 27.3 MB). Free memory was 194.0 MB in the beginning and 160.0 MB in the end (delta: 34.0 MB). Peak memory consumption was 61.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 759]: 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 37 procedures, 209 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 539 SDtfs, 266 SDslu, 1088 SDs, 0 SdLazy, 253 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred 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, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 28779 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...