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_spec4_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:49:57,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:49:57,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:49:57,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:49:57,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:49:57,919 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:49:57,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:49:57,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:49:57,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:49:57,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:49:57,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:49:57,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:49:57,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:49:57,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:49:57,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:49:57,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:49:57,931 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:49:57,932 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:49:57,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:49:57,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:49:57,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:49:57,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:49:57,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:49:57,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:49:57,944 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:49:57,944 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:49:57,944 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:49:57,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:49:57,946 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:49:57,947 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:49:57,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:49:57,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:49:57,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:49:57,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:49:57,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:49:57,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:49:57,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:49:57,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:49:57,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:49:57,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:49:57,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:49:57,956 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 02:49:57,983 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:49:57,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:49:57,986 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:49:57,987 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:49:57,988 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:49:57,988 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:49:57,988 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:49:57,988 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:49:57,988 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:49:57,989 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:49:57,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:49:57,990 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:49:57,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:49:57,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:49:57,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:49:57,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:49:57,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:49:57,992 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:49:57,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:49:57,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:49:57,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:49:57,993 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:49:57,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:49:57,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:57,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:49:57,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:49:57,995 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:49:57,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:49:57,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:49:57,995 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:49:58,047 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:49:58,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:49:58,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:49:58,076 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:49:58,076 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:49:58,077 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product10.cil.c [2019-09-10 02:49:58,150 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19b91bc8/4c9f4bf70bad4ef9b10db831420593e5/FLAG630d8d889 [2019-09-10 02:49:58,678 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:49:58,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product10.cil.c [2019-09-10 02:49:58,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19b91bc8/4c9f4bf70bad4ef9b10db831420593e5/FLAG630d8d889 [2019-09-10 02:49:59,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b19b91bc8/4c9f4bf70bad4ef9b10db831420593e5 [2019-09-10 02:49:59,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:49:59,039 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:49:59,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:59,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:49:59,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:49:59,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:59" (1/1) ... [2019-09-10 02:49:59,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff1afcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59, skipping insertion in model container [2019-09-10 02:49:59,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:59" (1/1) ... [2019-09-10 02:49:59,059 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:49:59,118 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:49:59,503 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:59,526 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:49:59,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:59,651 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:49:59,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59 WrapperNode [2019-09-10 02:49:59,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:59,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:49:59,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:49:59,654 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:49:59,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59" (1/1) ... [2019-09-10 02:49:59,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59" (1/1) ... [2019-09-10 02:49:59,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59" (1/1) ... [2019-09-10 02:49:59,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59" (1/1) ... [2019-09-10 02:49:59,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59" (1/1) ... [2019-09-10 02:49:59,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59" (1/1) ... [2019-09-10 02:49:59,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59" (1/1) ... [2019-09-10 02:49:59,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:49:59,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:49:59,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:49:59,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:49:59,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59" (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 02:49:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:49:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:49:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:49:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:59,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:49:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:49:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:49:59,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:49:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:49:59,829 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:49:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:49:59,830 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:49:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:49:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:49:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:49:59,831 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-10 02:49:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:49:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:49:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:49:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:49:59,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:49:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:49:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:49:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:49:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:49:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:49:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:49:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:49:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:49:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:49:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:49:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:49:59,835 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:49:59,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:49:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:49:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:49:59,836 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:49:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:49:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:49:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:49:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:49:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:49:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:49:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:49:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:49:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:49:59,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:49:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:49:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:49:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:49:59,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:49:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:49:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:49:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:49:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:49:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:49:59,840 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:49:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:49:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:49:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:49:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:49:59,841 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:49:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:49:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:49:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:49:59,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:49:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:49:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:49:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:49:59,843 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:49:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:49:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:49:59,844 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:49:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-10 02:49:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:49:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:49:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:49:59,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:49:59,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:50:00,865 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:50:00,865 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:50:00,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:00 BoogieIcfgContainer [2019-09-10 02:50:00,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:50:00,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:50:00,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:50:00,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:50:00,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:49:59" (1/3) ... [2019-09-10 02:50:00,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac84ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:00, skipping insertion in model container [2019-09-10 02:50:00,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:59" (2/3) ... [2019-09-10 02:50:00,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ac84ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:00, skipping insertion in model container [2019-09-10 02:50:00,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:00" (3/3) ... [2019-09-10 02:50:00,876 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product10.cil.c [2019-09-10 02:50:00,886 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:50:00,896 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:50:00,913 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:50:00,948 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:50:00,948 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:50:00,948 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:50:00,949 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:50:00,949 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:50:00,949 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:50:00,949 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:50:00,949 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:50:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2019-09-10 02:50:00,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:50:00,980 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:00,981 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] [2019-09-10 02:50:00,983 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:00,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:00,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1687671781, now seen corresponding path program 1 times [2019-09-10 02:50:00,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:01,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:01,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:01,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:01,050 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:01,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:01,329 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 02:50:01,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:01,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:50:01,333 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:01,339 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:01,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:01,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:01,357 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2019-09-10 02:50:01,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:01,391 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2019-09-10 02:50:01,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:01,392 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:50:01,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:01,401 INFO L225 Difference]: With dead ends: 96 [2019-09-10 02:50:01,402 INFO L226 Difference]: Without dead ends: 85 [2019-09-10 02:50:01,403 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:01,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-09-10 02:50:01,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-09-10 02:50:01,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-09-10 02:50:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 98 transitions. [2019-09-10 02:50:01,450 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 98 transitions. Word has length 46 [2019-09-10 02:50:01,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:01,451 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 98 transitions. [2019-09-10 02:50:01,451 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:01,451 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 98 transitions. [2019-09-10 02:50:01,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:50:01,454 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:01,455 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] [2019-09-10 02:50:01,455 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:01,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:01,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1046203216, now seen corresponding path program 1 times [2019-09-10 02:50:01,456 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:01,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:01,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:01,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:01,457 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:01,590 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 02:50:01,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:01,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:01,590 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:01,592 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:01,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:01,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:01,593 INFO L87 Difference]: Start difference. First operand 85 states and 98 transitions. Second operand 3 states. [2019-09-10 02:50:01,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:01,605 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2019-09-10 02:50:01,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:01,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:50:01,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:01,608 INFO L225 Difference]: With dead ends: 76 [2019-09-10 02:50:01,608 INFO L226 Difference]: Without dead ends: 76 [2019-09-10 02:50:01,609 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-10 02:50:01,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-09-10 02:50:01,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-09-10 02:50:01,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2019-09-10 02:50:01,619 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 47 [2019-09-10 02:50:01,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:01,620 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2019-09-10 02:50:01,620 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:01,620 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2019-09-10 02:50:01,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:50:01,622 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:01,622 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 02:50:01,623 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:01,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:01,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1948536442, now seen corresponding path program 1 times [2019-09-10 02:50:01,623 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:01,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:01,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:01,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:01,625 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:01,799 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 02:50:01,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:01,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:01,799 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:01,800 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:01,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:01,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:01,801 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 7 states. [2019-09-10 02:50:02,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:02,084 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2019-09-10 02:50:02,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:50:02,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:50:02,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:02,088 INFO L225 Difference]: With dead ends: 76 [2019-09-10 02:50:02,088 INFO L226 Difference]: Without dead ends: 76 [2019-09-10 02:50:02,089 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:02,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-10 02:50:02,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-09-10 02:50:02,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-09-10 02:50:02,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-09-10 02:50:02,104 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 52 [2019-09-10 02:50:02,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:02,105 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-09-10 02:50:02,105 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:02,105 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-09-10 02:50:02,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 02:50:02,109 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:02,109 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] [2019-09-10 02:50:02,111 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:02,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:02,111 INFO L82 PathProgramCache]: Analyzing trace with hash -952018290, now seen corresponding path program 1 times [2019-09-10 02:50:02,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:02,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:02,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:02,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:02,113 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:02,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:02,311 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 02:50:02,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:02,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:50:02,312 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:02,312 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:50:02,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:50:02,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:02,313 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 10 states. [2019-09-10 02:50:02,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:02,781 INFO L93 Difference]: Finished difference Result 160 states and 190 transitions. [2019-09-10 02:50:02,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:50:02,782 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2019-09-10 02:50:02,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:02,787 INFO L225 Difference]: With dead ends: 160 [2019-09-10 02:50:02,788 INFO L226 Difference]: Without dead ends: 160 [2019-09-10 02:50:02,788 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:50:02,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-09-10 02:50:02,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2019-09-10 02:50:02,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-09-10 02:50:02,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2019-09-10 02:50:02,833 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 55 [2019-09-10 02:50:02,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:02,833 INFO L475 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2019-09-10 02:50:02,833 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:50:02,833 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2019-09-10 02:50:02,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:50:02,835 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:02,836 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] [2019-09-10 02:50:02,836 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:02,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:02,837 INFO L82 PathProgramCache]: Analyzing trace with hash -939297624, now seen corresponding path program 1 times [2019-09-10 02:50:02,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:02,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:02,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:02,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:02,839 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:02,899 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 02:50:02,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:02,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:02,900 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:02,901 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:02,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:02,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:02,902 INFO L87 Difference]: Start difference. First operand 156 states and 183 transitions. Second operand 3 states. [2019-09-10 02:50:02,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:02,910 INFO L93 Difference]: Finished difference Result 146 states and 164 transitions. [2019-09-10 02:50:02,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:02,911 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-09-10 02:50:02,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:02,912 INFO L225 Difference]: With dead ends: 146 [2019-09-10 02:50:02,913 INFO L226 Difference]: Without dead ends: 146 [2019-09-10 02:50:02,915 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:02,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-09-10 02:50:02,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-09-10 02:50:02,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-09-10 02:50:02,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 164 transitions. [2019-09-10 02:50:02,938 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 164 transitions. Word has length 59 [2019-09-10 02:50:02,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:02,939 INFO L475 AbstractCegarLoop]: Abstraction has 146 states and 164 transitions. [2019-09-10 02:50:02,939 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:02,939 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 164 transitions. [2019-09-10 02:50:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-09-10 02:50:02,944 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:02,944 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:02,944 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:02,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:02,945 INFO L82 PathProgramCache]: Analyzing trace with hash 147904096, now seen corresponding path program 1 times [2019-09-10 02:50:02,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:02,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:02,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:02,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:02,948 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-09-10 02:50:03,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:03,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:50:03,075 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:03,076 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:50:03,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:50:03,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:50:03,076 INFO L87 Difference]: Start difference. First operand 146 states and 164 transitions. Second operand 6 states. [2019-09-10 02:50:03,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:03,212 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2019-09-10 02:50:03,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:50:03,213 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2019-09-10 02:50:03,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:03,214 INFO L225 Difference]: With dead ends: 145 [2019-09-10 02:50:03,214 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:50:03,214 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:50:03,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:50:03,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:50:03,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:50:03,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:50:03,216 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2019-09-10 02:50:03,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:03,217 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:50:03,217 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:50:03,217 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:50:03,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:50:03,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:50:03 BoogieIcfgContainer [2019-09-10 02:50:03,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:50:03,234 INFO L168 Benchmark]: Toolchain (without parser) took 4194.50 ms. Allocated memory was 130.5 MB in the beginning and 273.7 MB in the end (delta: 143.1 MB). Free memory was 85.5 MB in the beginning and 157.5 MB in the end (delta: -72.0 MB). Peak memory consumption was 71.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:03,235 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 130.5 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:50:03,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.18 ms. Allocated memory was 130.5 MB in the beginning and 197.7 MB in the end (delta: 67.1 MB). Free memory was 85.3 MB in the beginning and 163.4 MB in the end (delta: -78.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:03,239 INFO L168 Benchmark]: Boogie Preprocessor took 85.56 ms. Allocated memory is still 197.7 MB. Free memory was 163.4 MB in the beginning and 159.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:03,241 INFO L168 Benchmark]: RCFGBuilder took 1127.79 ms. Allocated memory is still 197.7 MB. Free memory was 159.5 MB in the beginning and 78.3 MB in the end (delta: 81.2 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:03,242 INFO L168 Benchmark]: TraceAbstraction took 2361.32 ms. Allocated memory was 197.7 MB in the beginning and 273.7 MB in the end (delta: 76.0 MB). Free memory was 77.6 MB in the beginning and 157.5 MB in the end (delta: -79.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:50:03,253 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 130.5 MB. Free memory was 105.1 MB in the beginning and 104.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 613.18 ms. Allocated memory was 130.5 MB in the beginning and 197.7 MB in the end (delta: 67.1 MB). Free memory was 85.3 MB in the beginning and 163.4 MB in the end (delta: -78.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.56 ms. Allocated memory is still 197.7 MB. Free memory was 163.4 MB in the beginning and 159.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1127.79 ms. Allocated memory is still 197.7 MB. Free memory was 159.5 MB in the beginning and 78.3 MB in the end (delta: 81.2 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2361.32 ms. Allocated memory was 197.7 MB in the beginning and 273.7 MB in the end (delta: 76.0 MB). Free memory was 77.6 MB in the beginning and 157.5 MB in the end (delta: -79.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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 36 procedures, 205 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 521 SDtfs, 296 SDslu, 969 SDs, 0 SdLazy, 332 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 349 NumberOfCodeBlocks, 349 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 343 ConstructedInterpolants, 0 QuantifiedInterpolants, 40993 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 27/27 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...