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_spec1_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:47:32,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:47:32,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:47:32,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:47:32,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:47:32,894 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:47:32,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:47:32,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:47:32,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:47:32,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:47:32,901 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:47:32,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:47:32,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:47:32,904 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:47:32,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:47:32,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:47:32,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:47:32,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:47:32,909 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:47:32,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:47:32,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:47:32,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:47:32,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:47:32,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:47:32,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:47:32,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:47:32,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:47:32,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:47:32,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:47:32,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:47:32,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:47:32,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:47:32,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:47:32,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:47:32,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:47:32,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:47:32,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:47:32,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:47:32,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:47:32,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:47:32,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:47:32,928 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 02:47:32,944 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:47:32,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:47:32,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:47:32,945 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:47:32,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:47:32,945 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:47:32,946 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:47:32,946 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:47:32,946 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:47:32,946 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:47:32,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:47:32,947 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:47:32,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:47:32,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:47:32,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:47:32,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:47:32,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:47:32,948 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:47:32,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:47:32,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:47:32,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:47:32,949 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:47:32,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:47:32,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:47:32,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:47:32,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:47:32,950 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:47:32,951 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:47:32,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:47:32,951 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:47:32,979 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:47:32,994 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:47:33,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:47:33,002 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:47:33,002 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:47:33,003 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product18.cil.c [2019-09-10 02:47:33,080 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb99f5588/7c2ae6c6231d4cefaa73e995e586cc24/FLAGe483490d6 [2019-09-10 02:47:33,576 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:47:33,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product18.cil.c [2019-09-10 02:47:33,595 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb99f5588/7c2ae6c6231d4cefaa73e995e586cc24/FLAGe483490d6 [2019-09-10 02:47:33,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb99f5588/7c2ae6c6231d4cefaa73e995e586cc24 [2019-09-10 02:47:33,869 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:47:33,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:47:33,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:33,872 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:47:33,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:47:33,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:33" (1/1) ... [2019-09-10 02:47:33,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b575677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:33, skipping insertion in model container [2019-09-10 02:47:33,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:47:33" (1/1) ... [2019-09-10 02:47:33,887 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:47:33,950 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:47:34,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:34,439 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:47:34,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:47:34,569 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:47:34,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:34 WrapperNode [2019-09-10 02:47:34,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:47:34,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:47:34,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:47:34,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:47:34,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:34" (1/1) ... [2019-09-10 02:47:34,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:34" (1/1) ... [2019-09-10 02:47:34,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:34" (1/1) ... [2019-09-10 02:47:34,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:34" (1/1) ... [2019-09-10 02:47:34,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:34" (1/1) ... [2019-09-10 02:47:34,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:34" (1/1) ... [2019-09-10 02:47:34,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:34" (1/1) ... [2019-09-10 02:47:34,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:47:34,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:47:34,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:47:34,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:47:34,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:34" (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 02:47:34,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:47:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:47:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:47:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:47:34,753 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:47:34,753 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:47:34,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:47:34,753 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:47:34,754 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:47:34,755 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:47:34,755 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:47:34,757 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:47:34,757 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:47:34,758 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:47:34,758 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:47:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:47:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:47:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:47:34,759 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:47:34,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:47:34,760 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:47:34,760 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:47:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:34,761 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:47:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:47:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:47:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:47:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:47:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:47:34,762 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:47:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:47:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:47:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:47:34,763 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:47:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:47:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:47:34,763 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:47:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:47:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:47:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:47:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-10 02:47:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:47:34,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:47:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:47:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:47:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:47:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:47:34,765 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:47:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:47:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:47:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:47:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:47:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:47:34,766 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:47:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:47:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:47:34,767 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:47:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:47:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:47:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:47:34,768 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:47:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:47:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:47:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:47:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:47:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:47:34,769 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:47:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:47:34,770 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:47:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:47:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:47:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:47:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:47:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:47:34,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:47:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:47:34,772 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:47:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:47:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:47:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:47:34,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:47:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:47:34,774 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:47:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:47:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:47:34,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:47:35,759 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:47:35,760 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:47:35,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:35 BoogieIcfgContainer [2019-09-10 02:47:35,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:47:35,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:47:35,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:47:35,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:47:35,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:47:33" (1/3) ... [2019-09-10 02:47:35,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b76895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:35, skipping insertion in model container [2019-09-10 02:47:35,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:47:34" (2/3) ... [2019-09-10 02:47:35,768 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b76895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:47:35, skipping insertion in model container [2019-09-10 02:47:35,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:47:35" (3/3) ... [2019-09-10 02:47:35,770 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product18.cil.c [2019-09-10 02:47:35,781 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:47:35,790 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:47:35,808 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:47:35,838 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:47:35,838 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:47:35,838 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:47:35,839 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:47:35,839 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:47:35,839 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:47:35,839 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:47:35,840 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:47:35,862 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2019-09-10 02:47:35,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:47:35,875 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:35,876 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 02:47:35,879 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:35,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:35,886 INFO L82 PathProgramCache]: Analyzing trace with hash -579503405, now seen corresponding path program 1 times [2019-09-10 02:47:35,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:35,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:35,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:35,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:35,944 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:36,252 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 02:47:36,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:36,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:47:36,255 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:36,261 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:47:36,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:47:36,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:47:36,281 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 2 states. [2019-09-10 02:47:36,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:36,329 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2019-09-10 02:47:36,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:47:36,331 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:47:36,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:36,358 INFO L225 Difference]: With dead ends: 119 [2019-09-10 02:47:36,358 INFO L226 Difference]: Without dead ends: 108 [2019-09-10 02:47:36,362 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 02:47:36,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-09-10 02:47:36,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-09-10 02:47:36,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-09-10 02:47:36,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 125 transitions. [2019-09-10 02:47:36,459 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 125 transitions. Word has length 46 [2019-09-10 02:47:36,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:36,459 INFO L475 AbstractCegarLoop]: Abstraction has 108 states and 125 transitions. [2019-09-10 02:47:36,459 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:47:36,460 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 125 transitions. [2019-09-10 02:47:36,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:47:36,466 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:36,466 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 02:47:36,466 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:36,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:36,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1270890065, now seen corresponding path program 1 times [2019-09-10 02:47:36,468 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:36,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:36,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:36,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:36,469 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:36,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:36,636 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 02:47:36,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:36,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:47:36,637 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:36,639 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:47:36,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:47:36,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:47:36,640 INFO L87 Difference]: Start difference. First operand 108 states and 125 transitions. Second operand 3 states. [2019-09-10 02:47:36,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:36,662 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2019-09-10 02:47:36,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:47:36,663 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:47:36,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:36,667 INFO L225 Difference]: With dead ends: 99 [2019-09-10 02:47:36,667 INFO L226 Difference]: Without dead ends: 99 [2019-09-10 02:47:36,668 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 02:47:36,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-10 02:47:36,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-10 02:47:36,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-10 02:47:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 113 transitions. [2019-09-10 02:47:36,688 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 113 transitions. Word has length 47 [2019-09-10 02:47:36,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:36,689 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 113 transitions. [2019-09-10 02:47:36,689 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:47:36,689 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 113 transitions. [2019-09-10 02:47:36,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:47:36,695 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:36,695 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 02:47:36,696 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:36,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:36,696 INFO L82 PathProgramCache]: Analyzing trace with hash 370634137, now seen corresponding path program 1 times [2019-09-10 02:47:36,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:36,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:36,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:36,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:36,698 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:36,803 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 02:47:36,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:36,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:36,804 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:36,804 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:36,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:36,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:36,805 INFO L87 Difference]: Start difference. First operand 99 states and 113 transitions. Second operand 7 states. [2019-09-10 02:47:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:37,089 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2019-09-10 02:47:37,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:47:37,090 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-10 02:47:37,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:37,092 INFO L225 Difference]: With dead ends: 99 [2019-09-10 02:47:37,092 INFO L226 Difference]: Without dead ends: 99 [2019-09-10 02:47:37,093 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 02:47:37,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-10 02:47:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-10 02:47:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-10 02:47:37,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 112 transitions. [2019-09-10 02:47:37,101 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 112 transitions. Word has length 52 [2019-09-10 02:47:37,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:37,102 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 112 transitions. [2019-09-10 02:47:37,102 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:37,102 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 112 transitions. [2019-09-10 02:47:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 02:47:37,105 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:37,105 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:37,105 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:37,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:37,106 INFO L82 PathProgramCache]: Analyzing trace with hash -897507814, now seen corresponding path program 1 times [2019-09-10 02:47:37,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:37,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:37,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:37,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:37,108 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:37,268 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 02:47:37,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:37,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:47:37,269 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:37,269 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:47:37,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:47:37,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:47:37,270 INFO L87 Difference]: Start difference. First operand 99 states and 112 transitions. Second operand 6 states. [2019-09-10 02:47:37,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:37,497 INFO L93 Difference]: Finished difference Result 167 states and 192 transitions. [2019-09-10 02:47:37,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:37,497 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2019-09-10 02:47:37,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:37,500 INFO L225 Difference]: With dead ends: 167 [2019-09-10 02:47:37,501 INFO L226 Difference]: Without dead ends: 167 [2019-09-10 02:47:37,501 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:47:37,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-09-10 02:47:37,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2019-09-10 02:47:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-09-10 02:47:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 190 transitions. [2019-09-10 02:47:37,528 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 190 transitions. Word has length 60 [2019-09-10 02:47:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:37,528 INFO L475 AbstractCegarLoop]: Abstraction has 165 states and 190 transitions. [2019-09-10 02:47:37,529 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:47:37,529 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 190 transitions. [2019-09-10 02:47:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-10 02:47:37,530 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:47:37,530 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:47:37,531 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:47:37,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:47:37,531 INFO L82 PathProgramCache]: Analyzing trace with hash 824132758, now seen corresponding path program 1 times [2019-09-10 02:47:37,531 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:47:37,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:37,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:47:37,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:47:37,535 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:47:37,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:47:37,660 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 02:47:37,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:47:37,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:47:37,661 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:47:37,663 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:47:37,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:47:37,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:47:37,665 INFO L87 Difference]: Start difference. First operand 165 states and 190 transitions. Second operand 7 states. [2019-09-10 02:47:37,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:47:37,987 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-09-10 02:47:37,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:47:37,987 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-09-10 02:47:37,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:47:37,988 INFO L225 Difference]: With dead ends: 120 [2019-09-10 02:47:37,988 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:47:37,989 INFO L628 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 [2019-09-10 02:47:37,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:47:37,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:47:37,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:47:37,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:47:37,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2019-09-10 02:47:37,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:47:37,990 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:47:37,990 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:47:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:47:37,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:47:37,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:47:37 BoogieIcfgContainer [2019-09-10 02:47:37,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:47:37,999 INFO L168 Benchmark]: Toolchain (without parser) took 4127.38 ms. Allocated memory was 136.3 MB in the beginning and 254.8 MB in the end (delta: 118.5 MB). Free memory was 91.6 MB in the beginning and 152.0 MB in the end (delta: -60.4 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:38,000 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 136.3 MB. Free memory was 110.9 MB in the beginning and 110.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:47:38,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.00 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 91.3 MB in the beginning and 169.4 MB in the end (delta: -78.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:38,004 INFO L168 Benchmark]: Boogie Preprocessor took 102.42 ms. Allocated memory is still 202.4 MB. Free memory was 169.4 MB in the beginning and 165.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:38,005 INFO L168 Benchmark]: RCFGBuilder took 1087.76 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 165.1 MB in the beginning and 201.5 MB in the end (delta: -36.4 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:38,007 INFO L168 Benchmark]: TraceAbstraction took 2233.77 ms. Allocated memory was 233.3 MB in the beginning and 254.8 MB in the end (delta: 21.5 MB). Free memory was 201.5 MB in the beginning and 152.0 MB in the end (delta: 49.5 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:47:38,017 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 136.3 MB. Free memory was 110.9 MB in the beginning and 110.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.00 ms. Allocated memory was 136.3 MB in the beginning and 202.4 MB in the end (delta: 66.1 MB). Free memory was 91.3 MB in the beginning and 169.4 MB in the end (delta: -78.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.42 ms. Allocated memory is still 202.4 MB. Free memory was 169.4 MB in the beginning and 165.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1087.76 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 165.1 MB in the beginning and 201.5 MB in the end (delta: -36.4 MB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2233.77 ms. Allocated memory was 233.3 MB in the beginning and 254.8 MB in the end (delta: 21.5 MB). Free memory was 201.5 MB in the beginning and 152.0 MB in the end (delta: 49.5 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 811]: 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, 218 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 543 SDtfs, 312 SDslu, 846 SDs, 0 SdLazy, 318 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s 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=165occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 264 ConstructedInterpolants, 0 QuantifiedInterpolants, 27132 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...