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_spec5_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:14,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:14,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:14,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:14,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:14,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:14,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:14,162 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:14,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:14,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:14,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:14,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:14,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:14,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:14,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:14,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:14,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:14,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:14,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:14,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:14,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:14,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:14,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:14,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:14,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:14,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:14,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:14,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:14,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:14,185 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:14,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:14,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:14,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:14,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:14,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:14,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:14,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:14,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:14,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:14,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:14,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:14,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:31:14,206 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:14,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:14,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:14,207 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:14,207 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:14,208 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:14,208 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:14,208 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:14,211 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:14,211 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:14,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:14,212 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:14,212 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:14,212 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:14,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:14,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:14,213 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:14,213 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:14,213 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:14,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:14,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:14,215 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:14,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:14,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:14,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:14,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:14,216 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:14,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:14,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:14,217 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:14,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:14,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:14,282 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:14,284 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:14,284 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:14,285 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product14.cil.c [2019-09-20 13:31:14,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08dbab9b2/92c9d45bafed432aae33beb1b9ed5055/FLAG1d673105f [2019-09-20 13:31:14,807 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:14,808 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product14.cil.c [2019-09-20 13:31:14,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08dbab9b2/92c9d45bafed432aae33beb1b9ed5055/FLAG1d673105f [2019-09-20 13:31:15,133 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08dbab9b2/92c9d45bafed432aae33beb1b9ed5055 [2019-09-20 13:31:15,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:15,143 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:15,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:15,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:15,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:15,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:15" (1/1) ... [2019-09-20 13:31:15,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3586be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15, skipping insertion in model container [2019-09-20 13:31:15,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:15" (1/1) ... [2019-09-20 13:31:15,159 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:15,197 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:15,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:15,670 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:15,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:15,796 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:15,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15 WrapperNode [2019-09-20 13:31:15,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:15,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:15,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:15,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:15,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15" (1/1) ... [2019-09-20 13:31:15,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15" (1/1) ... [2019-09-20 13:31:15,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15" (1/1) ... [2019-09-20 13:31:15,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15" (1/1) ... [2019-09-20 13:31:15,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15" (1/1) ... [2019-09-20 13:31:15,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15" (1/1) ... [2019-09-20 13:31:15,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15" (1/1) ... [2019-09-20 13:31:15,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:15,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:15,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:15,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:15,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:15,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:15,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:15,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:15,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:16,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:31:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:16,002 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-20 13:31:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:16,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:16,004 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:16,005 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:16,006 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:16,006 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:16,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:16,009 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:16,010 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:16,011 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:16,012 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:16,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:16,014 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:16,015 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:16,016 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:16,016 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:16,016 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:16,017 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:31:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:16,018 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-20 13:31:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:16,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:17,165 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:17,165 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:17,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:17 BoogieIcfgContainer [2019-09-20 13:31:17,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:17,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:17,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:17,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:17,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:15" (1/3) ... [2019-09-20 13:31:17,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304e2cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:17, skipping insertion in model container [2019-09-20 13:31:17,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:15" (2/3) ... [2019-09-20 13:31:17,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@304e2cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:17, skipping insertion in model container [2019-09-20 13:31:17,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:17" (3/3) ... [2019-09-20 13:31:17,177 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product14.cil.c [2019-09-20 13:31:17,187 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:17,199 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:17,217 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:17,239 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:17,239 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:17,239 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:17,240 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:17,240 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:17,240 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:17,240 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:17,240 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:17,258 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2019-09-20 13:31:17,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:17,272 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:17,273 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:17,275 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:17,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:17,280 INFO L82 PathProgramCache]: Analyzing trace with hash -2005015922, now seen corresponding path program 1 times [2019-09-20 13:31:17,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:17,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:17,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:17,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:17,338 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:17,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:17,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:17,634 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:17,634 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:17,640 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:17,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:17,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:17,657 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2019-09-20 13:31:17,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:17,684 INFO L93 Difference]: Finished difference Result 127 states and 146 transitions. [2019-09-20 13:31:17,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:17,686 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:17,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:17,698 INFO L225 Difference]: With dead ends: 127 [2019-09-20 13:31:17,699 INFO L226 Difference]: Without dead ends: 116 [2019-09-20 13:31:17,700 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:17,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-09-20 13:31:17,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-09-20 13:31:17,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-09-20 13:31:17,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2019-09-20 13:31:17,749 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 59 [2019-09-20 13:31:17,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:17,750 INFO L475 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2019-09-20 13:31:17,750 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:17,750 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2019-09-20 13:31:17,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:17,754 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:17,754 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:17,755 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:17,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:17,755 INFO L82 PathProgramCache]: Analyzing trace with hash 462950838, now seen corresponding path program 1 times [2019-09-20 13:31:17,755 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:17,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:17,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:17,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:17,759 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:17,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:17,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:17,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:17,956 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:17,960 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:17,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:17,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:17,962 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand 3 states. [2019-09-20 13:31:17,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:17,993 INFO L93 Difference]: Finished difference Result 107 states and 122 transitions. [2019-09-20 13:31:17,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:17,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:17,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:17,998 INFO L225 Difference]: With dead ends: 107 [2019-09-20 13:31:17,998 INFO L226 Difference]: Without dead ends: 107 [2019-09-20 13:31:17,999 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:18,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-09-20 13:31:18,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-09-20 13:31:18,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-09-20 13:31:18,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2019-09-20 13:31:18,025 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 60 [2019-09-20 13:31:18,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:18,026 INFO L475 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2019-09-20 13:31:18,026 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:18,026 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2019-09-20 13:31:18,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:31:18,030 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:18,031 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:18,031 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:18,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:18,031 INFO L82 PathProgramCache]: Analyzing trace with hash -152361795, now seen corresponding path program 1 times [2019-09-20 13:31:18,032 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:18,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:18,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:18,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:18,035 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:18,239 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:18,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:18,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:18,239 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:18,240 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:18,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:18,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:18,241 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 7 states. [2019-09-20 13:31:18,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:18,486 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2019-09-20 13:31:18,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:18,487 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-20 13:31:18,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:18,489 INFO L225 Difference]: With dead ends: 107 [2019-09-20 13:31:18,489 INFO L226 Difference]: Without dead ends: 107 [2019-09-20 13:31:18,490 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:18,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-09-20 13:31:18,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-09-20 13:31:18,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-09-20 13:31:18,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2019-09-20 13:31:18,498 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 65 [2019-09-20 13:31:18,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:18,502 INFO L475 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2019-09-20 13:31:18,502 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:18,502 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2019-09-20 13:31:18,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-20 13:31:18,507 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:18,507 INFO L407 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:18,507 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:18,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:18,508 INFO L82 PathProgramCache]: Analyzing trace with hash -118162915, now seen corresponding path program 1 times [2019-09-20 13:31:18,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:18,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:18,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:18,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:18,512 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:18,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:18,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:18,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:18,690 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:18,691 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:18,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:18,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:18,693 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 7 states. [2019-09-20 13:31:19,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:19,069 INFO L93 Difference]: Finished difference Result 85 states and 93 transitions. [2019-09-20 13:31:19,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:19,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-09-20 13:31:19,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:19,070 INFO L225 Difference]: With dead ends: 85 [2019-09-20 13:31:19,070 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:19,071 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:31:19,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:19,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:19,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:19,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2019-09-20 13:31:19,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:19,072 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:19,074 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:19,074 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:19,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:19,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:19 BoogieIcfgContainer [2019-09-20 13:31:19,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:19,086 INFO L168 Benchmark]: Toolchain (without parser) took 3941.73 ms. Allocated memory was 139.5 MB in the beginning and 261.6 MB in the end (delta: 122.2 MB). Free memory was 85.7 MB in the beginning and 178.1 MB in the end (delta: -92.4 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:19,087 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:19,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 653.38 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 85.3 MB in the beginning and 162.6 MB in the end (delta: -77.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:19,096 INFO L168 Benchmark]: Boogie Preprocessor took 112.21 ms. Allocated memory is still 199.2 MB. Free memory was 162.6 MB in the beginning and 158.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:19,097 INFO L168 Benchmark]: RCFGBuilder took 1257.35 ms. Allocated memory was 199.2 MB in the beginning and 222.8 MB in the end (delta: 23.6 MB). Free memory was 158.1 MB in the beginning and 190.7 MB in the end (delta: -32.6 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:19,099 INFO L168 Benchmark]: TraceAbstraction took 1914.11 ms. Allocated memory was 222.8 MB in the beginning and 261.6 MB in the end (delta: 38.8 MB). Free memory was 189.4 MB in the beginning and 178.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 50.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:19,106 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 653.38 ms. Allocated memory was 139.5 MB in the beginning and 199.2 MB in the end (delta: 59.8 MB). Free memory was 85.3 MB in the beginning and 162.6 MB in the end (delta: -77.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.21 ms. Allocated memory is still 199.2 MB. Free memory was 162.6 MB in the beginning and 158.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1257.35 ms. Allocated memory was 199.2 MB in the beginning and 222.8 MB in the end (delta: 23.6 MB). Free memory was 158.1 MB in the beginning and 190.7 MB in the end (delta: -32.6 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1914.11 ms. Allocated memory was 222.8 MB in the beginning and 261.6 MB in the end (delta: 38.8 MB). Free memory was 189.4 MB in the beginning and 178.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 50.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 916]: 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 39 procedures, 225 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 455 SDtfs, 206 SDslu, 471 SDs, 0 SdLazy, 296 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=0, 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 27417 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...