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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:10,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:10,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:10,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:10,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:10,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:10,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:10,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:10,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:10,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:10,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:10,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:10,882 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:10,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:10,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:10,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:10,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:10,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:10,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:10,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:10,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:10,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:10,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:10,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:10,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:10,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:10,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:10,899 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:10,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:10,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:10,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:10,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:10,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:10,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:10,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:10,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:10,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:10,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:10,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:10,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:10,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:10,908 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 [2019-09-16 17:08:10,924 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:10,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:10,925 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:10,925 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:10,926 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:10,926 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:10,927 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:10,928 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:10,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:10,928 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:10,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:10,930 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:10,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:10,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:10,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:10,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:10,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:10,931 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:10,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:10,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:10,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:10,932 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:10,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:10,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:10,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:10,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:10,934 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:10,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:10,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:10,934 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:10,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:11,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:11,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:11,013 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:11,014 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:11,015 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product12.cil.c [2019-09-16 17:08:11,091 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340037ca2/878887a7440b41598ac225ae538156bf/FLAG72097221a [2019-09-16 17:08:11,693 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:11,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product12.cil.c [2019-09-16 17:08:11,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340037ca2/878887a7440b41598ac225ae538156bf/FLAG72097221a [2019-09-16 17:08:11,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/340037ca2/878887a7440b41598ac225ae538156bf [2019-09-16 17:08:11,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:11,963 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:11,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:11,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:11,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:11,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:11,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfff92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11, skipping insertion in model container [2019-09-16 17:08:11,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:11,984 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:12,049 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:12,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:12,544 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:12,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:12,662 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:12,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:12 WrapperNode [2019-09-16 17:08:12,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:12,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:12,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:12,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:12,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:12" (1/1) ... [2019-09-16 17:08:12,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:12" (1/1) ... [2019-09-16 17:08:12,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:12" (1/1) ... [2019-09-16 17:08:12,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:12" (1/1) ... [2019-09-16 17:08:12,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:12" (1/1) ... [2019-09-16 17:08:12,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:12" (1/1) ... [2019-09-16 17:08:12,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:12" (1/1) ... [2019-09-16 17:08:12,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:12,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:12,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:12,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:12,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:12" (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 [2019-09-16 17:08:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:12,851 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:12,851 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-16 17:08:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:12,852 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:08:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:08:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:12,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:08:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:08:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-16 17:08:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:12,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:12,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:12,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:12,867 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:12,868 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:12,869 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:12,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:12,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:13,916 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:13,917 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:13,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:13 BoogieIcfgContainer [2019-09-16 17:08:13,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:13,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:13,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:13,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:13,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:11" (1/3) ... [2019-09-16 17:08:13,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a82c278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:13, skipping insertion in model container [2019-09-16 17:08:13,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:12" (2/3) ... [2019-09-16 17:08:13,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a82c278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:13, skipping insertion in model container [2019-09-16 17:08:13,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:13" (3/3) ... [2019-09-16 17:08:13,928 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product12.cil.c [2019-09-16 17:08:13,939 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:13,951 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:13,969 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:13,991 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:13,992 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:13,992 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:13,992 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:13,992 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:13,992 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:13,993 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:13,993 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:14,014 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-09-16 17:08:14,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:14,029 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:14,030 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] [2019-09-16 17:08:14,032 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:14,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:14,039 INFO L82 PathProgramCache]: Analyzing trace with hash 695039274, now seen corresponding path program 1 times [2019-09-16 17:08:14,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:14,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:14,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,111 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:14,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:14,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:14,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:14,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:14,460 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:14,466 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:14,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:14,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:14,484 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 2 states. [2019-09-16 17:08:14,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:14,512 INFO L93 Difference]: Finished difference Result 110 states and 126 transitions. [2019-09-16 17:08:14,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:14,514 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:14,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:14,527 INFO L225 Difference]: With dead ends: 110 [2019-09-16 17:08:14,527 INFO L226 Difference]: Without dead ends: 99 [2019-09-16 17:08:14,529 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 [2019-09-16 17:08:14,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-16 17:08:14,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-09-16 17:08:14,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-09-16 17:08:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2019-09-16 17:08:14,578 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 114 transitions. Word has length 51 [2019-09-16 17:08:14,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:14,579 INFO L475 AbstractCegarLoop]: Abstraction has 99 states and 114 transitions. [2019-09-16 17:08:14,579 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:14,579 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 114 transitions. [2019-09-16 17:08:14,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:14,583 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:14,583 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] [2019-09-16 17:08:14,583 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:14,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:14,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1984182024, now seen corresponding path program 1 times [2019-09-16 17:08:14,584 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:14,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:14,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,587 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:14,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:14,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:14,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:14,715 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:14,718 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:14,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:14,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:14,720 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. Second operand 3 states. [2019-09-16 17:08:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:14,748 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2019-09-16 17:08:14,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:14,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:14,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:14,753 INFO L225 Difference]: With dead ends: 90 [2019-09-16 17:08:14,753 INFO L226 Difference]: Without dead ends: 90 [2019-09-16 17:08:14,754 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 [2019-09-16 17:08:14,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-09-16 17:08:14,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2019-09-16 17:08:14,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2019-09-16 17:08:14,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2019-09-16 17:08:14,773 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 52 [2019-09-16 17:08:14,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:14,774 INFO L475 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2019-09-16 17:08:14,774 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2019-09-16 17:08:14,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:08:14,776 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:14,776 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] [2019-09-16 17:08:14,777 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:14,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:14,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1900976134, now seen corresponding path program 1 times [2019-09-16 17:08:14,777 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:14,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:14,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,780 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:14,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:14,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:14,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:14,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:14,993 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:14,993 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:14,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:14,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:14,994 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand 7 states. [2019-09-16 17:08:15,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:15,374 INFO L93 Difference]: Finished difference Result 203 states and 242 transitions. [2019-09-16 17:08:15,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:15,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-16 17:08:15,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:15,377 INFO L225 Difference]: With dead ends: 203 [2019-09-16 17:08:15,378 INFO L226 Difference]: Without dead ends: 203 [2019-09-16 17:08:15,378 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:15,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2019-09-16 17:08:15,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 179. [2019-09-16 17:08:15,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-09-16 17:08:15,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 214 transitions. [2019-09-16 17:08:15,409 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 214 transitions. Word has length 57 [2019-09-16 17:08:15,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:15,413 INFO L475 AbstractCegarLoop]: Abstraction has 179 states and 214 transitions. [2019-09-16 17:08:15,413 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 214 transitions. [2019-09-16 17:08:15,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-16 17:08:15,419 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:15,419 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] [2019-09-16 17:08:15,419 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:15,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:15,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1671708304, now seen corresponding path program 1 times [2019-09-16 17:08:15,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:15,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:15,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:15,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:15,426 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:15,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:15,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:15,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:15,578 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:15,578 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:15,579 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:15,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:15,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:15,580 INFO L87 Difference]: Start difference. First operand 179 states and 214 transitions. Second operand 6 states. [2019-09-16 17:08:15,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:15,778 INFO L93 Difference]: Finished difference Result 312 states and 374 transitions. [2019-09-16 17:08:15,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:15,781 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2019-09-16 17:08:15,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:15,785 INFO L225 Difference]: With dead ends: 312 [2019-09-16 17:08:15,785 INFO L226 Difference]: Without dead ends: 312 [2019-09-16 17:08:15,786 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 [2019-09-16 17:08:15,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2019-09-16 17:08:15,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 306. [2019-09-16 17:08:15,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-09-16 17:08:15,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 368 transitions. [2019-09-16 17:08:15,826 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 368 transitions. Word has length 60 [2019-09-16 17:08:15,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:15,827 INFO L475 AbstractCegarLoop]: Abstraction has 306 states and 368 transitions. [2019-09-16 17:08:15,827 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:15,827 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 368 transitions. [2019-09-16 17:08:15,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-16 17:08:15,830 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:15,830 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] [2019-09-16 17:08:15,830 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:15,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:15,831 INFO L82 PathProgramCache]: Analyzing trace with hash 2018803980, now seen corresponding path program 1 times [2019-09-16 17:08:15,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:15,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:15,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:15,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:15,846 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:15,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:15,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:15,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:15,961 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:15,963 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:15,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:15,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:15,965 INFO L87 Difference]: Start difference. First operand 306 states and 368 transitions. Second operand 6 states. [2019-09-16 17:08:16,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:16,121 INFO L93 Difference]: Finished difference Result 274 states and 317 transitions. [2019-09-16 17:08:16,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:16,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-09-16 17:08:16,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:16,123 INFO L225 Difference]: With dead ends: 274 [2019-09-16 17:08:16,123 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:16,123 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 [2019-09-16 17:08:16,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:16,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:16,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:16,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:16,126 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2019-09-16 17:08:16,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:16,126 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:16,126 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:16,127 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:16,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:16,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:16 BoogieIcfgContainer [2019-09-16 17:08:16,133 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:16,136 INFO L168 Benchmark]: Toolchain (without parser) took 4172.05 ms. Allocated memory was 136.3 MB in the beginning and 279.4 MB in the end (delta: 143.1 MB). Free memory was 82.7 MB in the beginning and 192.8 MB in the end (delta: -110.1 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:16,138 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 136.3 MB. Free memory was 102.3 MB in the beginning and 102.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:16,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.19 ms. Allocated memory was 136.3 MB in the beginning and 196.1 MB in the end (delta: 59.8 MB). Free memory was 82.5 MB in the beginning and 162.2 MB in the end (delta: -79.7 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:16,141 INFO L168 Benchmark]: Boogie Preprocessor took 95.79 ms. Allocated memory is still 196.1 MB. Free memory was 162.2 MB in the beginning and 157.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:16,142 INFO L168 Benchmark]: RCFGBuilder took 1159.88 ms. Allocated memory is still 196.1 MB. Free memory was 157.7 MB in the beginning and 76.6 MB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:16,144 INFO L168 Benchmark]: TraceAbstraction took 2212.79 ms. Allocated memory was 196.1 MB in the beginning and 279.4 MB in the end (delta: 83.4 MB). Free memory was 75.9 MB in the beginning and 192.8 MB in the end (delta: -116.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:08:16,154 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 136.3 MB. Free memory was 102.3 MB in the beginning and 102.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 697.19 ms. Allocated memory was 136.3 MB in the beginning and 196.1 MB in the end (delta: 59.8 MB). Free memory was 82.5 MB in the beginning and 162.2 MB in the end (delta: -79.7 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.79 ms. Allocated memory is still 196.1 MB. Free memory was 162.2 MB in the beginning and 157.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1159.88 ms. Allocated memory is still 196.1 MB. Free memory was 157.7 MB in the beginning and 76.6 MB in the end (delta: 81.1 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2212.79 ms. Allocated memory was 196.1 MB in the beginning and 279.4 MB in the end (delta: 83.4 MB). Free memory was 75.9 MB in the beginning and 192.8 MB in the end (delta: -116.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 434]: 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, 216 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 539 SDtfs, 266 SDslu, 1088 SDs, 0 SdLazy, 253 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 284 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 28779 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...