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_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:57,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:57,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:57,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:57,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:57,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:57,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:57,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:57,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:57,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:57,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:57,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:57,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:57,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:57,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:57,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:57,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:57,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:57,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:57,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:57,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:57,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:57,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:57,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:57,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:57,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:57,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:57,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:57,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:57,974 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:57,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:57,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:57,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:57,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:57,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:57,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:57,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:57,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:57,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:57,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:57,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:57,981 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 [2019-09-20 13:29:57,996 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:57,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:57,997 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:57,997 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:57,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:57,998 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:57,998 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:57,998 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:57,999 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:57,999 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:58,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:58,000 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:58,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:58,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:58,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:58,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:58,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:58,001 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:58,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:58,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:58,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:58,002 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:58,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:58,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:58,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:58,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:58,003 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:58,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:58,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:58,003 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:58,036 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:58,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:58,051 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:58,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:58,053 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:58,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product15.cil.c [2019-09-20 13:29:58,110 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19086f5ee/cc81daa5771f4d1ab79d7a287f8cd7b4/FLAG39c116901 [2019-09-20 13:29:58,607 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:58,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product15.cil.c [2019-09-20 13:29:58,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19086f5ee/cc81daa5771f4d1ab79d7a287f8cd7b4/FLAG39c116901 [2019-09-20 13:29:58,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19086f5ee/cc81daa5771f4d1ab79d7a287f8cd7b4 [2019-09-20 13:29:58,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:58,956 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:58,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:58,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:58,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:58,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b9c1821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:58, skipping insertion in model container [2019-09-20 13:29:58,966 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:58" (1/1) ... [2019-09-20 13:29:58,974 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:59,036 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:59,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:59,574 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:59,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:59,704 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:59,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59 WrapperNode [2019-09-20 13:29:59,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:59,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:59,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:59,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:59,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:59,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:59,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:59,792 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:59,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (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 [2019-09-20 13:29:59,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:59,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:59,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:59,853 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:59,853 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:29:59,853 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:59,853 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-20 13:29:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:59,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:59,855 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:29:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:59,856 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:59,857 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:59,857 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:59,857 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:59,857 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:59,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:59,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:59,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:59,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:59,862 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:59,863 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:29:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:29:59,864 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-20 13:29:59,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:59,866 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:59,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:59,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:59,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:59,870 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:00,973 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:00,973 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:00,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:00 BoogieIcfgContainer [2019-09-20 13:30:00,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:00,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:00,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:00,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:00,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:58" (1/3) ... [2019-09-20 13:30:00,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422b1915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:00, skipping insertion in model container [2019-09-20 13:30:00,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (2/3) ... [2019-09-20 13:30:00,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@422b1915 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:00, skipping insertion in model container [2019-09-20 13:30:01,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:00" (3/3) ... [2019-09-20 13:30:01,003 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product15.cil.c [2019-09-20 13:30:01,013 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:01,022 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:01,037 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:01,058 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:01,059 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:01,059 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:01,059 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:01,059 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:01,060 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:01,060 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:01,060 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:01,081 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-09-20 13:30:01,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:01,095 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:01,096 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:01,098 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:01,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:01,104 INFO L82 PathProgramCache]: Analyzing trace with hash -936458787, now seen corresponding path program 1 times [2019-09-20 13:30:01,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:01,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:01,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,162 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:01,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:01,487 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:01,487 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:01,493 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:01,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:01,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:01,511 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 2 states. [2019-09-20 13:30:01,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:01,544 INFO L93 Difference]: Finished difference Result 121 states and 142 transitions. [2019-09-20 13:30:01,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:01,545 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:01,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:01,558 INFO L225 Difference]: With dead ends: 121 [2019-09-20 13:30:01,558 INFO L226 Difference]: Without dead ends: 110 [2019-09-20 13:30:01,560 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:01,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-20 13:30:01,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-20 13:30:01,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-20 13:30:01,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 130 transitions. [2019-09-20 13:30:01,613 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 130 transitions. Word has length 51 [2019-09-20 13:30:01,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:01,614 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 130 transitions. [2019-09-20 13:30:01,614 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 130 transitions. [2019-09-20 13:30:01,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:01,618 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:01,618 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:01,618 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:01,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:01,619 INFO L82 PathProgramCache]: Analyzing trace with hash -137557085, now seen corresponding path program 1 times [2019-09-20 13:30:01,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:01,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:01,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,622 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:01,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:01,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:01,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:01,726 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:01,729 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:01,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:01,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:01,731 INFO L87 Difference]: Start difference. First operand 110 states and 130 transitions. Second operand 3 states. [2019-09-20 13:30:01,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:01,763 INFO L93 Difference]: Finished difference Result 101 states and 118 transitions. [2019-09-20 13:30:01,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:01,764 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:01,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:01,768 INFO L225 Difference]: With dead ends: 101 [2019-09-20 13:30:01,769 INFO L226 Difference]: Without dead ends: 101 [2019-09-20 13:30:01,769 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:01,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-09-20 13:30:01,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-09-20 13:30:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-09-20 13:30:01,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2019-09-20 13:30:01,796 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 52 [2019-09-20 13:30:01,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:01,799 INFO L475 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2019-09-20 13:30:01,799 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:01,799 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2019-09-20 13:30:01,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:30:01,803 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:01,804 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:01,804 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:01,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:01,805 INFO L82 PathProgramCache]: Analyzing trace with hash 734191743, now seen corresponding path program 1 times [2019-09-20 13:30:01,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:01,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:01,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,809 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:01,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:01,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:01,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:01,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:01,953 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:01,954 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:01,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:01,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:01,955 INFO L87 Difference]: Start difference. First operand 101 states and 118 transitions. Second operand 7 states. [2019-09-20 13:30:02,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:02,383 INFO L93 Difference]: Finished difference Result 225 states and 272 transitions. [2019-09-20 13:30:02,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:02,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-20 13:30:02,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:02,389 INFO L225 Difference]: With dead ends: 225 [2019-09-20 13:30:02,389 INFO L226 Difference]: Without dead ends: 225 [2019-09-20 13:30:02,389 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:02,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2019-09-20 13:30:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 217. [2019-09-20 13:30:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-09-20 13:30:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 266 transitions. [2019-09-20 13:30:02,440 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 266 transitions. Word has length 56 [2019-09-20 13:30:02,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:02,441 INFO L475 AbstractCegarLoop]: Abstraction has 217 states and 266 transitions. [2019-09-20 13:30:02,441 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 266 transitions. [2019-09-20 13:30:02,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:30:02,444 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:02,449 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:02,449 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:02,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:02,449 INFO L82 PathProgramCache]: Analyzing trace with hash -667828357, now seen corresponding path program 1 times [2019-09-20 13:30:02,450 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:02,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:02,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,454 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:02,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:02,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:02,670 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:02,671 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:02,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:02,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:02,671 INFO L87 Difference]: Start difference. First operand 217 states and 266 transitions. Second operand 6 states. [2019-09-20 13:30:02,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:02,849 INFO L93 Difference]: Finished difference Result 388 states and 478 transitions. [2019-09-20 13:30:02,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:02,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:30:02,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:02,854 INFO L225 Difference]: With dead ends: 388 [2019-09-20 13:30:02,854 INFO L226 Difference]: Without dead ends: 388 [2019-09-20 13:30:02,855 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:02,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2019-09-20 13:30:02,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 382. [2019-09-20 13:30:02,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2019-09-20 13:30:02,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 472 transitions. [2019-09-20 13:30:02,890 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 472 transitions. Word has length 62 [2019-09-20 13:30:02,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:02,890 INFO L475 AbstractCegarLoop]: Abstraction has 382 states and 472 transitions. [2019-09-20 13:30:02,890 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:02,890 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 472 transitions. [2019-09-20 13:30:02,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:30:02,893 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:02,894 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:02,894 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:02,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:02,894 INFO L82 PathProgramCache]: Analyzing trace with hash 824409239, now seen corresponding path program 1 times [2019-09-20 13:30:02,895 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:02,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:02,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,898 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:03,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:03,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:03,003 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:03,004 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:03,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:03,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:03,006 INFO L87 Difference]: Start difference. First operand 382 states and 472 transitions. Second operand 7 states. [2019-09-20 13:30:03,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:03,319 INFO L93 Difference]: Finished difference Result 294 states and 341 transitions. [2019-09-20 13:30:03,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:03,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-20 13:30:03,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:03,321 INFO L225 Difference]: With dead ends: 294 [2019-09-20 13:30:03,321 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:03,322 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:30:03,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:03,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:03,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:03,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:03,323 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-20 13:30:03,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:03,325 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:03,325 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:03,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:03,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:03,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:03 BoogieIcfgContainer [2019-09-20 13:30:03,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:03,336 INFO L168 Benchmark]: Toolchain (without parser) took 4377.96 ms. Allocated memory was 132.1 MB in the beginning and 264.2 MB in the end (delta: 132.1 MB). Free memory was 86.9 MB in the beginning and 130.6 MB in the end (delta: -43.7 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,337 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.83 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 86.7 MB in the beginning and 164.4 MB in the end (delta: -77.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,340 INFO L168 Benchmark]: Boogie Preprocessor took 85.20 ms. Allocated memory is still 199.8 MB. Free memory was 164.4 MB in the beginning and 160.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,341 INFO L168 Benchmark]: RCFGBuilder took 1183.98 ms. Allocated memory is still 199.8 MB. Free memory was 160.0 MB in the beginning and 76.8 MB in the end (delta: 83.2 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,343 INFO L168 Benchmark]: TraceAbstraction took 2355.38 ms. Allocated memory was 199.8 MB in the beginning and 264.2 MB in the end (delta: 64.5 MB). Free memory was 76.2 MB in the beginning and 130.6 MB in the end (delta: -54.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,352 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 132.1 MB. Free memory was 106.3 MB in the beginning and 106.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.83 ms. Allocated memory was 132.1 MB in the beginning and 199.8 MB in the end (delta: 67.6 MB). Free memory was 86.7 MB in the beginning and 164.4 MB in the end (delta: -77.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.20 ms. Allocated memory is still 199.8 MB. Free memory was 164.4 MB in the beginning and 160.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1183.98 ms. Allocated memory is still 199.8 MB. Free memory was 160.0 MB in the beginning and 76.8 MB in the end (delta: 83.2 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2355.38 ms. Allocated memory was 199.8 MB in the beginning and 264.2 MB in the end (delta: 64.5 MB). Free memory was 76.2 MB in the beginning and 130.6 MB in the end (delta: -54.4 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 370]: 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 38 procedures, 222 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 613 SDtfs, 402 SDslu, 1109 SDs, 0 SdLazy, 406 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred 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, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 287 NumberOfCodeBlocks, 287 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 282 ConstructedInterpolants, 0 QuantifiedInterpolants, 29734 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...