java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:08,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:08,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:08,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:08,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:08,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:08,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:08,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:08,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:08,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:08,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:08,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:08,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:08,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:08,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:08,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:08,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:08,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:08,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:08,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:08,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:08,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:08,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:08,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:08,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:08,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:08,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:08,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:08,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:08,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:08,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:08,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:08,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:08,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:08,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:08,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:08,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:08,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:08,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:08,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:08,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:08,162 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 [2019-10-03 02:58:08,187 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:08,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:08,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:08,189 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:08,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:08,190 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:08,190 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:08,190 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:08,190 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:08,190 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:08,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:08,193 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:08,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:08,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:08,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:08,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:08,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:08,195 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:08,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:08,195 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:08,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:08,196 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:08,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:08,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:08,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:08,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:08,197 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:08,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:08,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:08,198 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:08,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:08,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:08,277 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:08,279 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:08,279 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:08,281 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2019-10-03 02:58:08,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b477c8675/534ab8bed9b146bb94e1a26315225160/FLAGa089f3077 [2019-10-03 02:58:08,876 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:08,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product04.cil.c [2019-10-03 02:58:08,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b477c8675/534ab8bed9b146bb94e1a26315225160/FLAGa089f3077 [2019-10-03 02:58:09,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b477c8675/534ab8bed9b146bb94e1a26315225160 [2019-10-03 02:58:09,188 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:09,190 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:09,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:09,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:09,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:09,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2979f7f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09, skipping insertion in model container [2019-10-03 02:58:09,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,207 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:09,265 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:09,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:09,735 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:09,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:09,876 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:09,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09 WrapperNode [2019-10-03 02:58:09,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:09,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:09,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:09,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:09,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (1/1) ... [2019-10-03 02:58:09,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:09,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:09,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:09,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:09,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (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 [2019-10-03 02:58:10,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:10,063 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:10,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:10,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:10,066 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:10,067 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-03 02:58:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:58:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:10,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:10,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:10,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:10,070 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:10,071 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:10,072 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-03 02:58:10,073 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:58:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:10,074 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:11,095 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:11,096 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:11,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:11 BoogieIcfgContainer [2019-10-03 02:58:11,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:11,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:11,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:11,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:11,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:09" (1/3) ... [2019-10-03 02:58:11,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0e658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:11, skipping insertion in model container [2019-10-03 02:58:11,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:09" (2/3) ... [2019-10-03 02:58:11,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f0e658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:11, skipping insertion in model container [2019-10-03 02:58:11,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:11" (3/3) ... [2019-10-03 02:58:11,106 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2019-10-03 02:58:11,117 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:11,125 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:11,143 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:11,167 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:11,167 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:11,167 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:11,167 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:11,168 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:11,168 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:11,168 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:11,168 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:11,188 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2019-10-03 02:58:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:58:11,202 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:11,203 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:11,205 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:11,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:11,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1078669538, now seen corresponding path program 1 times [2019-10-03 02:58:11,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:11,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:11,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,284 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:11,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:11,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:11,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:11,587 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:11,596 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:11,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:11,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:11,616 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2019-10-03 02:58:11,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:11,654 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2019-10-03 02:58:11,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:11,655 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:58:11,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:11,667 INFO L225 Difference]: With dead ends: 105 [2019-10-03 02:58:11,668 INFO L226 Difference]: Without dead ends: 94 [2019-10-03 02:58:11,669 INFO L640 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 [2019-10-03 02:58:11,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-10-03 02:58:11,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-10-03 02:58:11,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-10-03 02:58:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2019-10-03 02:58:11,716 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 46 [2019-10-03 02:58:11,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:11,716 INFO L475 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2019-10-03 02:58:11,717 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:11,717 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2019-10-03 02:58:11,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:58:11,720 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:11,720 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:11,720 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:11,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:11,721 INFO L82 PathProgramCache]: Analyzing trace with hash -352011727, now seen corresponding path program 1 times [2019-10-03 02:58:11,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:11,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:11,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,724 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:11,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:11,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:11,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:11,848 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:11,851 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:11,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:11,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:11,852 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand 3 states. [2019-10-03 02:58:11,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:11,877 INFO L93 Difference]: Finished difference Result 85 states and 96 transitions. [2019-10-03 02:58:11,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:11,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:58:11,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:11,882 INFO L225 Difference]: With dead ends: 85 [2019-10-03 02:58:11,884 INFO L226 Difference]: Without dead ends: 85 [2019-10-03 02:58:11,885 INFO L640 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 [2019-10-03 02:58:11,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-03 02:58:11,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-10-03 02:58:11,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-10-03 02:58:11,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 96 transitions. [2019-10-03 02:58:11,904 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 96 transitions. Word has length 47 [2019-10-03 02:58:11,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:11,905 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 96 transitions. [2019-10-03 02:58:11,905 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:11,905 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2019-10-03 02:58:11,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:58:11,907 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:11,907 INFO L411 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] [2019-10-03 02:58:11,907 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:11,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:11,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1517693929, now seen corresponding path program 1 times [2019-10-03 02:58:11,910 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:11,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:11,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:11,912 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:12,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:12,103 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:12,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:12,103 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:12,104 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:12,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:12,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:12,105 INFO L87 Difference]: Start difference. First operand 85 states and 96 transitions. Second operand 7 states. [2019-10-03 02:58:12,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:12,454 INFO L93 Difference]: Finished difference Result 196 states and 232 transitions. [2019-10-03 02:58:12,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:58:12,455 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-10-03 02:58:12,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:12,461 INFO L225 Difference]: With dead ends: 196 [2019-10-03 02:58:12,462 INFO L226 Difference]: Without dead ends: 196 [2019-10-03 02:58:12,464 INFO L640 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 [2019-10-03 02:58:12,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-10-03 02:58:12,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 172. [2019-10-03 02:58:12,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-03 02:58:12,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2019-10-03 02:58:12,499 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 52 [2019-10-03 02:58:12,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:12,505 INFO L475 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2019-10-03 02:58:12,505 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:12,505 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2019-10-03 02:58:12,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-03 02:58:12,507 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:12,508 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:12,508 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:12,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:12,508 INFO L82 PathProgramCache]: Analyzing trace with hash 818013324, now seen corresponding path program 1 times [2019-10-03 02:58:12,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:12,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:12,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:12,513 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:12,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:12,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:12,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:12,682 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:12,683 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:12,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:12,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:12,684 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand 10 states. [2019-10-03 02:58:13,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:13,227 INFO L93 Difference]: Finished difference Result 420 states and 523 transitions. [2019-10-03 02:58:13,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:58:13,230 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2019-10-03 02:58:13,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:13,242 INFO L225 Difference]: With dead ends: 420 [2019-10-03 02:58:13,242 INFO L226 Difference]: Without dead ends: 420 [2019-10-03 02:58:13,243 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:58:13,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2019-10-03 02:58:13,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 408. [2019-10-03 02:58:13,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2019-10-03 02:58:13,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 502 transitions. [2019-10-03 02:58:13,309 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 502 transitions. Word has length 55 [2019-10-03 02:58:13,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:13,310 INFO L475 AbstractCegarLoop]: Abstraction has 408 states and 502 transitions. [2019-10-03 02:58:13,310 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:13,312 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 502 transitions. [2019-10-03 02:58:13,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:58:13,320 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:13,320 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:13,320 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:13,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:13,321 INFO L82 PathProgramCache]: Analyzing trace with hash 514323110, now seen corresponding path program 1 times [2019-10-03 02:58:13,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:13,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:13,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:13,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:13,327 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:13,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:13,440 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:13,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:13,440 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:13,441 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:13,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:13,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:13,441 INFO L87 Difference]: Start difference. First operand 408 states and 502 transitions. Second operand 3 states. [2019-10-03 02:58:13,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:13,461 INFO L93 Difference]: Finished difference Result 366 states and 428 transitions. [2019-10-03 02:58:13,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:13,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-10-03 02:58:13,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:13,467 INFO L225 Difference]: With dead ends: 366 [2019-10-03 02:58:13,467 INFO L226 Difference]: Without dead ends: 366 [2019-10-03 02:58:13,467 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:13,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2019-10-03 02:58:13,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2019-10-03 02:58:13,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2019-10-03 02:58:13,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 428 transitions. [2019-10-03 02:58:13,486 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 428 transitions. Word has length 59 [2019-10-03 02:58:13,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:13,486 INFO L475 AbstractCegarLoop]: Abstraction has 366 states and 428 transitions. [2019-10-03 02:58:13,486 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:13,486 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 428 transitions. [2019-10-03 02:58:13,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-03 02:58:13,489 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:13,490 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:13,490 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:13,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:13,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1399137902, now seen corresponding path program 1 times [2019-10-03 02:58:13,491 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:13,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:13,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:13,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:13,493 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:13,628 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2019-10-03 02:58:13,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:13,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:13,629 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:13,629 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:13,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:13,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:13,630 INFO L87 Difference]: Start difference. First operand 366 states and 428 transitions. Second operand 7 states. [2019-10-03 02:58:14,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:14,050 INFO L93 Difference]: Finished difference Result 369 states and 429 transitions. [2019-10-03 02:58:14,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:58:14,051 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2019-10-03 02:58:14,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:14,051 INFO L225 Difference]: With dead ends: 369 [2019-10-03 02:58:14,052 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:14,052 INFO L640 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 [2019-10-03 02:58:14,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:14,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:14,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:14,053 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2019-10-03 02:58:14,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:14,053 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:14,053 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:14,054 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:14,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:14,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:14 BoogieIcfgContainer [2019-10-03 02:58:14,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:14,062 INFO L168 Benchmark]: Toolchain (without parser) took 4871.34 ms. Allocated memory was 137.4 MB in the beginning and 273.7 MB in the end (delta: 136.3 MB). Free memory was 83.8 MB in the beginning and 104.9 MB in the end (delta: -21.1 MB). Peak memory consumption was 115.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:14,063 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 137.4 MB. Free memory was 103.5 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:14,064 INFO L168 Benchmark]: CACSL2BoogieTranslator took 687.06 ms. Allocated memory was 137.4 MB in the beginning and 196.6 MB in the end (delta: 59.2 MB). Free memory was 83.6 MB in the beginning and 163.3 MB in the end (delta: -79.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:14,065 INFO L168 Benchmark]: Boogie Preprocessor took 105.68 ms. Allocated memory is still 196.6 MB. Free memory was 163.3 MB in the beginning and 159.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:14,066 INFO L168 Benchmark]: RCFGBuilder took 1113.67 ms. Allocated memory is still 196.6 MB. Free memory was 159.5 MB in the beginning and 78.3 MB in the end (delta: 81.2 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:14,067 INFO L168 Benchmark]: TraceAbstraction took 2960.16 ms. Allocated memory was 196.6 MB in the beginning and 273.7 MB in the end (delta: 77.1 MB). Free memory was 78.3 MB in the beginning and 104.9 MB in the end (delta: -26.6 MB). Peak memory consumption was 50.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:14,070 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 137.4 MB. Free memory was 103.5 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 687.06 ms. Allocated memory was 137.4 MB in the beginning and 196.6 MB in the end (delta: 59.2 MB). Free memory was 83.6 MB in the beginning and 163.3 MB in the end (delta: -79.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.68 ms. Allocated memory is still 196.6 MB. Free memory was 163.3 MB in the beginning and 159.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1113.67 ms. Allocated memory is still 196.6 MB. Free memory was 159.5 MB in the beginning and 78.3 MB in the end (delta: 81.2 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2960.16 ms. Allocated memory was 196.6 MB in the beginning and 273.7 MB in the end (delta: 77.1 MB). Free memory was 78.3 MB in the beginning and 104.9 MB in the end (delta: -26.6 MB). Peak memory consumption was 50.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 838]: 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, 204 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 585 SDtfs, 401 SDslu, 1242 SDs, 0 SdLazy, 543 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 36 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 348 NumberOfCodeBlocks, 348 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 342 ConstructedInterpolants, 0 QuantifiedInterpolants, 41424 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 24/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...