java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:08:10,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:08:10,155 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:08:10,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:08:10,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:08:10,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:08:10,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:08:10,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:08:10,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:08:10,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:08:10,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:08:10,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:08:10,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:08:10,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:08:10,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:08:10,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:08:10,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:08:10,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:08:10,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:08:10,214 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:08:10,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:08:10,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:08:10,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:08:10,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:08:10,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:08:10,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:08:10,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:08:10,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:08:10,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:08:10,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:08:10,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:08:10,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:08:10,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:08:10,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:08:10,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:08:10,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:08:10,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:08:10,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:08:10,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:08:10,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:08:10,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:08:10,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:08:10,260 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:08:10,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:08:10,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:08:10,261 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:08:10,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:08:10,262 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:08:10,262 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:08:10,263 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:08:10,263 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:08:10,263 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:08:10,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:08:10,264 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:08:10,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:08:10,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:08:10,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:08:10,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:08:10,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:08:10,265 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:08:10,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:08:10,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:08:10,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:08:10,266 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:08:10,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:08:10,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:10,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:08:10,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:08:10,267 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:08:10,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:08:10,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:08:10,268 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:08:10,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:08:10,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:08:10,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:08:10,317 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:08:10,317 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:08:10,318 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product11.cil.c [2019-09-16 17:08:10,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f531d6a/fb4c41d9eaee43dabf52ad1bee5c12e5/FLAGecf5303c3 [2019-09-16 17:08:10,924 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:08:10,925 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product11.cil.c [2019-09-16 17:08:10,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f531d6a/fb4c41d9eaee43dabf52ad1bee5c12e5/FLAGecf5303c3 [2019-09-16 17:08:11,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95f531d6a/fb4c41d9eaee43dabf52ad1bee5c12e5 [2019-09-16 17:08:11,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:08:11,238 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:08:11,239 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:11,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:08:11,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:08:11,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:11,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56745d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11, skipping insertion in model container [2019-09-16 17:08:11,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:11,257 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:08:11,317 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:08:11,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:11,793 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:08:11,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:08:11,921 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:08:11,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11 WrapperNode [2019-09-16 17:08:11,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:08:11,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:08:11,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:08:11,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:08:11,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:11,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:11,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:11,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:11,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:12,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:12,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11" (1/1) ... [2019-09-16 17:08:12,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:08:12,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:08:12,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:08:12,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:08:12,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:08:12,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:08:12,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:08:12,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:08:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:08:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:08:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:08:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:12,119 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:08:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:08:12,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:08:12,121 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:08:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:08:12,122 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-16 17:08:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:08:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:08:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:08:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:08:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:08:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:08:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:08:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:08:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:08:12,125 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:08:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:08:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:08:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:08:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:08:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:08:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:08:12,126 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:08:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:08:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:08:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:08:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:08:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:08:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:08:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:08:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:08:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:08:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:08:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:08:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:08:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:08:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:08:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:08:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:08:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:08:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:08:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:08:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:08:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:08:12,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:08:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:08:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:08:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:08:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:08:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:08:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:08:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:08:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:08:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:08:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:08:12,132 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:08:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:08:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:08:12,133 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-16 17:08:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:08:12,134 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-16 17:08:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:08:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:08:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:08:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:08:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:08:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:08:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-16 17:08:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:08:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:08:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:08:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:08:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:08:12,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:08:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:08:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:08:13,345 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:08:13,346 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:08:13,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:13 BoogieIcfgContainer [2019-09-16 17:08:13,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:08:13,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:08:13,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:08:13,353 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:08:13,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:08:11" (1/3) ... [2019-09-16 17:08:13,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6473fbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:13, skipping insertion in model container [2019-09-16 17:08:13,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:08:11" (2/3) ... [2019-09-16 17:08:13,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6473fbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:08:13, skipping insertion in model container [2019-09-16 17:08:13,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:08:13" (3/3) ... [2019-09-16 17:08:13,357 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product11.cil.c [2019-09-16 17:08:13,368 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:08:13,379 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:08:13,396 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:08:13,439 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:08:13,440 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:08:13,440 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:08:13,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:08:13,440 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:08:13,440 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:08:13,441 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:08:13,441 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:08:13,461 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-09-16 17:08:13,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:08:13,474 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:13,475 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:13,477 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:13,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:13,484 INFO L82 PathProgramCache]: Analyzing trace with hash -536149365, now seen corresponding path program 1 times [2019-09-16 17:08:13,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:13,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:13,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:13,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:13,547 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:13,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:13,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:13,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:08:13,891 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:13,897 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:08:13,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:08:13,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:13,915 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2019-09-16 17:08:13,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:13,939 INFO L93 Difference]: Finished difference Result 106 states and 122 transitions. [2019-09-16 17:08:13,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:08:13,941 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-16 17:08:13,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:13,951 INFO L225 Difference]: With dead ends: 106 [2019-09-16 17:08:13,951 INFO L226 Difference]: Without dead ends: 95 [2019-09-16 17:08:13,953 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:08:13,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-16 17:08:13,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2019-09-16 17:08:13,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-09-16 17:08:13,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2019-09-16 17:08:13,999 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 51 [2019-09-16 17:08:14,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:14,000 INFO L475 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2019-09-16 17:08:14,000 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:08:14,000 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2019-09-16 17:08:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:08:14,004 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:14,004 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:14,004 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:14,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:14,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1955999865, now seen corresponding path program 1 times [2019-09-16 17:08:14,005 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:14,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:14,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,008 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:14,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:14,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:08:14,112 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:14,115 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:08:14,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:08:14,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:14,116 INFO L87 Difference]: Start difference. First operand 95 states and 110 transitions. Second operand 3 states. [2019-09-16 17:08:14,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:14,140 INFO L93 Difference]: Finished difference Result 86 states and 98 transitions. [2019-09-16 17:08:14,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:08:14,142 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:08:14,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:14,146 INFO L225 Difference]: With dead ends: 86 [2019-09-16 17:08:14,146 INFO L226 Difference]: Without dead ends: 86 [2019-09-16 17:08:14,148 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:08:14,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-09-16 17:08:14,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-09-16 17:08:14,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-09-16 17:08:14,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2019-09-16 17:08:14,167 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 52 [2019-09-16 17:08:14,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:14,168 INFO L475 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2019-09-16 17:08:14,168 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:08:14,168 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2019-09-16 17:08:14,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-16 17:08:14,173 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:14,173 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:14,173 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:14,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:14,174 INFO L82 PathProgramCache]: Analyzing trace with hash 989054586, now seen corresponding path program 1 times [2019-09-16 17:08:14,174 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:14,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:14,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,177 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:14,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:14,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:14,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:14,377 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:14,378 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:14,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:14,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:14,379 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand 7 states. [2019-09-16 17:08:14,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:14,806 INFO L93 Difference]: Finished difference Result 195 states and 232 transitions. [2019-09-16 17:08:14,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:08:14,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-09-16 17:08:14,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:14,816 INFO L225 Difference]: With dead ends: 195 [2019-09-16 17:08:14,816 INFO L226 Difference]: Without dead ends: 195 [2019-09-16 17:08:14,817 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:08:14,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-09-16 17:08:14,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 175. [2019-09-16 17:08:14,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2019-09-16 17:08:14,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 210 transitions. [2019-09-16 17:08:14,866 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 210 transitions. Word has length 56 [2019-09-16 17:08:14,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:14,872 INFO L475 AbstractCegarLoop]: Abstraction has 175 states and 210 transitions. [2019-09-16 17:08:14,872 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:14,873 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 210 transitions. [2019-09-16 17:08:14,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-16 17:08:14,878 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:14,878 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:14,878 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:14,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:14,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1261077216, now seen corresponding path program 1 times [2019-09-16 17:08:14,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:14,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:14,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:14,886 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:15,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:15,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:15,047 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:15,049 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:15,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:15,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:15,050 INFO L87 Difference]: Start difference. First operand 175 states and 210 transitions. Second operand 6 states. [2019-09-16 17:08:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:15,269 INFO L93 Difference]: Finished difference Result 304 states and 366 transitions. [2019-09-16 17:08:15,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:15,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-09-16 17:08:15,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:15,274 INFO L225 Difference]: With dead ends: 304 [2019-09-16 17:08:15,274 INFO L226 Difference]: Without dead ends: 304 [2019-09-16 17:08:15,275 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:08:15,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-09-16 17:08:15,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 298. [2019-09-16 17:08:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-09-16 17:08:15,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 360 transitions. [2019-09-16 17:08:15,302 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 360 transitions. Word has length 59 [2019-09-16 17:08:15,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:15,303 INFO L475 AbstractCegarLoop]: Abstraction has 298 states and 360 transitions. [2019-09-16 17:08:15,303 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:15,303 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 360 transitions. [2019-09-16 17:08:15,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-16 17:08:15,306 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:15,306 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:08:15,306 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:15,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:15,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1219688068, now seen corresponding path program 1 times [2019-09-16 17:08:15,307 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:15,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:15,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:15,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:15,310 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:15,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:15,410 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:15,410 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:15,412 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:15,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:15,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:15,414 INFO L87 Difference]: Start difference. First operand 298 states and 360 transitions. Second operand 6 states. [2019-09-16 17:08:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:15,584 INFO L93 Difference]: Finished difference Result 266 states and 309 transitions. [2019-09-16 17:08:15,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:08:15,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2019-09-16 17:08:15,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:15,587 INFO L225 Difference]: With dead ends: 266 [2019-09-16 17:08:15,587 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:15,588 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:08:15,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:15,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:15,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:15,590 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2019-09-16 17:08:15,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:15,590 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:15,591 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:15,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:15,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:15,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:15 BoogieIcfgContainer [2019-09-16 17:08:15,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:15,607 INFO L168 Benchmark]: Toolchain (without parser) took 4366.13 ms. Allocated memory was 138.4 MB in the beginning and 267.9 MB in the end (delta: 129.5 MB). Free memory was 85.1 MB in the beginning and 180.2 MB in the end (delta: -95.1 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:15,609 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:15,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.91 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 84.9 MB in the beginning and 164.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:15,613 INFO L168 Benchmark]: Boogie Preprocessor took 100.05 ms. Allocated memory is still 198.2 MB. Free memory was 164.9 MB in the beginning and 160.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:15,615 INFO L168 Benchmark]: RCFGBuilder took 1324.76 ms. Allocated memory is still 198.2 MB. Free memory was 160.5 MB in the beginning and 77.8 MB in the end (delta: 82.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:15,617 INFO L168 Benchmark]: TraceAbstraction took 2253.27 ms. Allocated memory was 198.2 MB in the beginning and 267.9 MB in the end (delta: 69.7 MB). Free memory was 77.1 MB in the beginning and 180.2 MB in the end (delta: -103.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-16 17:08:15,631 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 682.91 ms. Allocated memory was 138.4 MB in the beginning and 198.2 MB in the end (delta: 59.8 MB). Free memory was 84.9 MB in the beginning and 164.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.05 ms. Allocated memory is still 198.2 MB. Free memory was 164.9 MB in the beginning and 160.5 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1324.76 ms. Allocated memory is still 198.2 MB. Free memory was 160.5 MB in the beginning and 77.8 MB in the end (delta: 82.7 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2253.27 ms. Allocated memory was 198.2 MB in the beginning and 267.9 MB in the end (delta: 69.7 MB). Free memory was 77.1 MB in the beginning and 180.2 MB in the end (delta: -103.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 668]: 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 37 procedures, 212 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 516 SDtfs, 255 SDslu, 1048 SDs, 0 SdLazy, 238 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 281 NumberOfCodeBlocks, 281 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 276 ConstructedInterpolants, 0 QuantifiedInterpolants, 27804 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...