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_product05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:51,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:51,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:51,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:51,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:51,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:51,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:51,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:51,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:51,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:51,882 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:51,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:51,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:51,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:51,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:51,887 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:51,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:51,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:51,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:51,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:51,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:51,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:51,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:51,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:51,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:51,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:51,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:51,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:51,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:51,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:51,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:51,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:51,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:51,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:51,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:51,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:51,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:51,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:51,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:51,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:51,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:51,926 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 13:29:51,956 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:51,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:51,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:51,958 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:51,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:51,959 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:51,959 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:51,959 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:51,959 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:51,960 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:51,962 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:51,962 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:51,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:51,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:51,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:51,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:51,963 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:51,964 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:51,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:51,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:51,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:51,965 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:51,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:51,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:51,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:51,966 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:51,966 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:51,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:51,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:51,967 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:52,009 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:52,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:52,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:52,025 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:52,026 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:52,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product05.cil.c [2019-09-20 13:29:52,092 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1a05f18/7cb15fd714e647cc9b5bc8da3229a66e/FLAG9bc622648 [2019-09-20 13:29:52,664 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:52,665 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product05.cil.c [2019-09-20 13:29:52,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1a05f18/7cb15fd714e647cc9b5bc8da3229a66e/FLAG9bc622648 [2019-09-20 13:29:52,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b1a05f18/7cb15fd714e647cc9b5bc8da3229a66e [2019-09-20 13:29:52,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:52,891 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:52,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:52,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:52,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:52,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:52" (1/1) ... [2019-09-20 13:29:52,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1316cd59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:52, skipping insertion in model container [2019-09-20 13:29:52,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:52" (1/1) ... [2019-09-20 13:29:52,910 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:52,953 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:53,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:53,367 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:53,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:53,516 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:53,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53 WrapperNode [2019-09-20 13:29:53,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:53,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:53,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:53,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:53,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53" (1/1) ... [2019-09-20 13:29:53,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:53,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:53,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:53,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:53,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53" (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 13:29:53,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:53,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:53,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:53,705 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:53,708 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:53,708 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:53,709 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:53,710 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:53,710 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:29:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:29:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:53,720 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:53,720 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:53,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:53,720 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:54,839 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:54,840 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:54,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:54 BoogieIcfgContainer [2019-09-20 13:29:54,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:54,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:54,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:54,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:54,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:52" (1/3) ... [2019-09-20 13:29:54,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711e8c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:54, skipping insertion in model container [2019-09-20 13:29:54,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:53" (2/3) ... [2019-09-20 13:29:54,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711e8c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:54, skipping insertion in model container [2019-09-20 13:29:54,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:54" (3/3) ... [2019-09-20 13:29:54,850 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product05.cil.c [2019-09-20 13:29:54,859 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:54,868 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:54,885 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:54,912 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:54,912 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:54,912 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:54,912 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:54,913 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:54,913 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:54,913 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:54,913 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:54,933 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-09-20 13:29:54,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:54,947 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:54,948 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 13:29:54,950 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:54,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:54,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1269401024, now seen corresponding path program 1 times [2019-09-20 13:29:54,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:55,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:55,028 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,029 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:55,325 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 13:29:55,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:55,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:55,328 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:55,334 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:55,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:55,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:55,353 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 2 states. [2019-09-20 13:29:55,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:55,397 INFO L93 Difference]: Finished difference Result 115 states and 134 transitions. [2019-09-20 13:29:55,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:55,399 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:29:55,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:55,426 INFO L225 Difference]: With dead ends: 115 [2019-09-20 13:29:55,426 INFO L226 Difference]: Without dead ends: 104 [2019-09-20 13:29:55,431 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 13:29:55,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2019-09-20 13:29:55,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2019-09-20 13:29:55,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-09-20 13:29:55,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 122 transitions. [2019-09-20 13:29:55,537 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 122 transitions. Word has length 51 [2019-09-20 13:29:55,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:55,538 INFO L475 AbstractCegarLoop]: Abstraction has 104 states and 122 transitions. [2019-09-20 13:29:55,538 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:55,539 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 122 transitions. [2019-09-20 13:29:55,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:55,545 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:55,545 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 13:29:55,545 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:55,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:55,546 INFO L82 PathProgramCache]: Analyzing trace with hash 595669144, now seen corresponding path program 1 times [2019-09-20 13:29:55,547 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:55,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:55,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,550 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:55,740 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 13:29:55,741 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:55,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:55,741 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:55,744 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:55,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:55,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:55,745 INFO L87 Difference]: Start difference. First operand 104 states and 122 transitions. Second operand 3 states. [2019-09-20 13:29:55,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:55,767 INFO L93 Difference]: Finished difference Result 95 states and 110 transitions. [2019-09-20 13:29:55,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:55,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:29:55,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:55,770 INFO L225 Difference]: With dead ends: 95 [2019-09-20 13:29:55,771 INFO L226 Difference]: Without dead ends: 95 [2019-09-20 13:29:55,771 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 13:29:55,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-20 13:29:55,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-20 13:29:55,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-20 13:29:55,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2019-09-20 13:29:55,787 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 52 [2019-09-20 13:29:55,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:55,787 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2019-09-20 13:29:55,788 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:55,788 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2019-09-20 13:29:55,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-20 13:29:55,790 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:55,790 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 13:29:55,790 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:55,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:55,791 INFO L82 PathProgramCache]: Analyzing trace with hash 111621899, now seen corresponding path program 1 times [2019-09-20 13:29:55,791 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:55,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:55,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:55,794 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:55,946 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 13:29:55,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:55,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:55,947 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:55,947 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:55,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:55,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:55,948 INFO L87 Difference]: Start difference. First operand 95 states and 110 transitions. Second operand 7 states. [2019-09-20 13:29:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:56,232 INFO L93 Difference]: Finished difference Result 95 states and 109 transitions. [2019-09-20 13:29:56,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:56,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-20 13:29:56,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:56,234 INFO L225 Difference]: With dead ends: 95 [2019-09-20 13:29:56,235 INFO L226 Difference]: Without dead ends: 95 [2019-09-20 13:29:56,235 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 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 13:29:56,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-20 13:29:56,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-20 13:29:56,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-20 13:29:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 109 transitions. [2019-09-20 13:29:56,244 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 109 transitions. Word has length 56 [2019-09-20 13:29:56,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:56,245 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 109 transitions. [2019-09-20 13:29:56,245 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 109 transitions. [2019-09-20 13:29:56,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:29:56,247 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:56,247 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] [2019-09-20 13:29:56,247 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:56,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:56,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1110138086, now seen corresponding path program 1 times [2019-09-20 13:29:56,248 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:56,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:56,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,251 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:56,395 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 13:29:56,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:56,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:56,396 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:56,397 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:56,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:56,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:56,398 INFO L87 Difference]: Start difference. First operand 95 states and 109 transitions. Second operand 6 states. [2019-09-20 13:29:56,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:56,640 INFO L93 Difference]: Finished difference Result 154 states and 180 transitions. [2019-09-20 13:29:56,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:56,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-09-20 13:29:56,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:56,644 INFO L225 Difference]: With dead ends: 154 [2019-09-20 13:29:56,644 INFO L226 Difference]: Without dead ends: 154 [2019-09-20 13:29:56,644 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 13:29:56,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-09-20 13:29:56,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2019-09-20 13:29:56,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-09-20 13:29:56,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 178 transitions. [2019-09-20 13:29:56,672 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 178 transitions. Word has length 64 [2019-09-20 13:29:56,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:56,673 INFO L475 AbstractCegarLoop]: Abstraction has 152 states and 178 transitions. [2019-09-20 13:29:56,673 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:56,673 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 178 transitions. [2019-09-20 13:29:56,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-20 13:29:56,675 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:56,675 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, 1, 1] [2019-09-20 13:29:56,680 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:56,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:56,681 INFO L82 PathProgramCache]: Analyzing trace with hash 494399618, now seen corresponding path program 1 times [2019-09-20 13:29:56,681 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:56,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:56,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:56,687 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:56,837 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 13:29:56,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:56,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:56,839 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:56,841 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:56,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:56,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:56,842 INFO L87 Difference]: Start difference. First operand 152 states and 178 transitions. Second operand 7 states. [2019-09-20 13:29:57,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:57,167 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2019-09-20 13:29:57,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:57,168 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-09-20 13:29:57,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:57,168 INFO L225 Difference]: With dead ends: 116 [2019-09-20 13:29:57,169 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:57,169 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 13:29:57,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:57,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:57,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:57,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:57,173 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-09-20 13:29:57,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:57,173 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:57,173 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:57,173 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:57,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:57,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:57 BoogieIcfgContainer [2019-09-20 13:29:57,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:57,182 INFO L168 Benchmark]: Toolchain (without parser) took 4290.08 ms. Allocated memory was 130.0 MB in the beginning and 274.2 MB in the end (delta: 144.2 MB). Free memory was 84.8 MB in the beginning and 173.6 MB in the end (delta: -88.7 MB). Peak memory consumption was 55.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,184 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 625.70 ms. Allocated memory was 130.0 MB in the beginning and 198.7 MB in the end (delta: 68.7 MB). Free memory was 84.6 MB in the beginning and 165.2 MB in the end (delta: -80.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,187 INFO L168 Benchmark]: Boogie Preprocessor took 101.07 ms. Allocated memory is still 198.7 MB. Free memory was 165.2 MB in the beginning and 160.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,189 INFO L168 Benchmark]: RCFGBuilder took 1222.17 ms. Allocated memory is still 198.7 MB. Free memory was 160.8 MB in the beginning and 78.3 MB in the end (delta: 82.5 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:57,190 INFO L168 Benchmark]: TraceAbstraction took 2336.39 ms. Allocated memory was 198.7 MB in the beginning and 274.2 MB in the end (delta: 75.5 MB). Free memory was 78.3 MB in the beginning and 173.6 MB in the end (delta: -95.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:57,201 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 625.70 ms. Allocated memory was 130.0 MB in the beginning and 198.7 MB in the end (delta: 68.7 MB). Free memory was 84.6 MB in the beginning and 165.2 MB in the end (delta: -80.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.07 ms. Allocated memory is still 198.7 MB. Free memory was 165.2 MB in the beginning and 160.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1222.17 ms. Allocated memory is still 198.7 MB. Free memory was 160.8 MB in the beginning and 78.3 MB in the end (delta: 82.5 MB). Peak memory consumption was 82.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2336.39 ms. Allocated memory was 198.7 MB in the beginning and 274.2 MB in the end (delta: 75.5 MB). Free memory was 78.3 MB in the beginning and 173.6 MB in the end (delta: -95.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 510]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 209 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 530 SDtfs, 252 SDslu, 817 SDs, 0 SdLazy, 318 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred 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, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 30424 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...