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_spec1_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:27,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:27,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:27,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:27,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:27,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:27,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:27,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:27,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:27,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:27,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:27,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:27,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:27,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:27,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:27,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:27,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:27,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:27,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:27,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:27,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:27,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:27,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:27,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:27,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:27,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:27,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:27,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:27,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:27,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:27,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:27,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:27,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:27,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:27,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:27,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:27,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:27,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:27,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:27,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:27,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:27,318 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:27,338 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:27,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:27,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:27,339 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:27,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:27,340 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:27,340 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:27,341 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:27,341 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:27,341 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:27,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:27,344 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:27,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:27,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:27,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:27,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:27,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:27,345 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:27,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:27,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:27,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:27,346 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:27,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:27,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:27,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:27,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:27,347 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:27,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:27,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:27,347 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:27,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:27,411 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:27,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:27,416 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:27,417 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:27,418 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product10.cil.c [2019-09-20 13:29:27,478 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cf182c87/5aa748276483441b8ef0edfc6fdc888a/FLAG2b3740c1e [2019-09-20 13:29:28,011 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:28,012 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product10.cil.c [2019-09-20 13:29:28,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cf182c87/5aa748276483441b8ef0edfc6fdc888a/FLAG2b3740c1e [2019-09-20 13:29:28,251 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cf182c87/5aa748276483441b8ef0edfc6fdc888a [2019-09-20 13:29:28,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:28,264 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:28,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:28,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:28,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:28,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:28,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f462b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28, skipping insertion in model container [2019-09-20 13:29:28,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:28,283 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:28,345 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:28,805 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:28,820 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:28,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:28,960 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:28,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28 WrapperNode [2019-09-20 13:29:28,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:28,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:28,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:28,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:28,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:28,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:29,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:29,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:29,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:29,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:29,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28" (1/1) ... [2019-09-20 13:29:29,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:29,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:29,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:29,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:29,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:29,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:29,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:29,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:29,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:29,146 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:29,146 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:29,146 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:29,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:29,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:29,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:29,147 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:29,147 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:29,147 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:29,147 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:29,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-20 13:29:29,149 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:29,150 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:29,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:29,150 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:29,150 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:29,150 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:29:29,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:29,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:29,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:29,151 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:29,151 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:29,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:29,152 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:29:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:29,153 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:29,154 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:29,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:29,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:29,157 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-20 13:29:29,158 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:29,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:30,235 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:30,235 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:30,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:30 BoogieIcfgContainer [2019-09-20 13:29:30,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:30,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:30,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:30,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:30,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:28" (1/3) ... [2019-09-20 13:29:30,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24630bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:30, skipping insertion in model container [2019-09-20 13:29:30,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:28" (2/3) ... [2019-09-20 13:29:30,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24630bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:30, skipping insertion in model container [2019-09-20 13:29:30,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:30" (3/3) ... [2019-09-20 13:29:30,248 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product10.cil.c [2019-09-20 13:29:30,259 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:30,270 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:30,288 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:30,320 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:30,321 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:30,321 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:30,321 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:30,321 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:30,322 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:30,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:30,322 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:30,343 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2019-09-20 13:29:30,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:30,353 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:30,354 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] [2019-09-20 13:29:30,357 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:30,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:30,362 INFO L82 PathProgramCache]: Analyzing trace with hash -712803612, now seen corresponding path program 1 times [2019-09-20 13:29:30,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:30,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:30,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,420 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:30,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:30,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:30,777 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:30,784 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:30,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:30,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:30,804 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 2 states. [2019-09-20 13:29:30,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:30,840 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2019-09-20 13:29:30,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:30,842 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:30,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:30,856 INFO L225 Difference]: With dead ends: 96 [2019-09-20 13:29:30,857 INFO L226 Difference]: Without dead ends: 85 [2019-09-20 13:29:30,860 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:30,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-09-20 13:29:30,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-09-20 13:29:30,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-09-20 13:29:30,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 98 transitions. [2019-09-20 13:29:30,944 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 98 transitions. Word has length 46 [2019-09-20 13:29:30,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:30,945 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 98 transitions. [2019-09-20 13:29:30,945 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:30,945 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 98 transitions. [2019-09-20 13:29:30,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:30,951 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:30,951 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] [2019-09-20 13:29:30,951 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:30,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:30,952 INFO L82 PathProgramCache]: Analyzing trace with hash -1977757942, now seen corresponding path program 1 times [2019-09-20 13:29:30,952 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:30,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:30,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:30,956 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:31,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:31,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:31,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:31,092 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:31,094 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:31,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:31,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:31,095 INFO L87 Difference]: Start difference. First operand 85 states and 98 transitions. Second operand 3 states. [2019-09-20 13:29:31,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:31,114 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2019-09-20 13:29:31,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:31,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:31,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:31,120 INFO L225 Difference]: With dead ends: 76 [2019-09-20 13:29:31,120 INFO L226 Difference]: Without dead ends: 76 [2019-09-20 13:29:31,121 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:31,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-20 13:29:31,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-09-20 13:29:31,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-09-20 13:29:31,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2019-09-20 13:29:31,131 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 47 [2019-09-20 13:29:31,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:31,132 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2019-09-20 13:29:31,132 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:31,132 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2019-09-20 13:29:31,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:31,134 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:31,134 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:31,134 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:31,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:31,135 INFO L82 PathProgramCache]: Analyzing trace with hash 2058663948, now seen corresponding path program 1 times [2019-09-20 13:29:31,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:31,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:31,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,138 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:31,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:31,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:31,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:31,300 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:31,300 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:31,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:31,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:31,301 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 7 states. [2019-09-20 13:29:31,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:31,573 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2019-09-20 13:29:31,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:31,574 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:29:31,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:31,575 INFO L225 Difference]: With dead ends: 76 [2019-09-20 13:29:31,576 INFO L226 Difference]: Without dead ends: 76 [2019-09-20 13:29:31,576 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 13:29:31,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-20 13:29:31,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-09-20 13:29:31,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-09-20 13:29:31,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-09-20 13:29:31,583 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 52 [2019-09-20 13:29:31,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:31,584 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-09-20 13:29:31,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:31,584 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-09-20 13:29:31,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-20 13:29:31,587 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:31,588 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] [2019-09-20 13:29:31,588 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:31,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:31,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1628377793, now seen corresponding path program 1 times [2019-09-20 13:29:31,589 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:31,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:31,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,593 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:31,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:31,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:31,728 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:31,728 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:31,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:31,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:31,729 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 6 states. [2019-09-20 13:29:31,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:31,932 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2019-09-20 13:29:31,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:31,933 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-09-20 13:29:31,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:31,942 INFO L225 Difference]: With dead ends: 121 [2019-09-20 13:29:31,942 INFO L226 Difference]: Without dead ends: 121 [2019-09-20 13:29:31,942 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:31,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-09-20 13:29:31,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2019-09-20 13:29:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-20 13:29:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 136 transitions. [2019-09-20 13:29:31,988 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 136 transitions. Word has length 55 [2019-09-20 13:29:31,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:31,989 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 136 transitions. [2019-09-20 13:29:31,989 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:31,989 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 136 transitions. [2019-09-20 13:29:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:29:31,990 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:31,991 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] [2019-09-20 13:29:31,991 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:31,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:31,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1482549181, now seen corresponding path program 1 times [2019-09-20 13:29:31,991 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:31,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:31,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:31,994 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:29:32,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:32,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:32,080 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:32,081 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:32,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:32,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:32,082 INFO L87 Difference]: Start difference. First operand 119 states and 136 transitions. Second operand 6 states. [2019-09-20 13:29:32,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:32,219 INFO L93 Difference]: Finished difference Result 110 states and 123 transitions. [2019-09-20 13:29:32,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:29:32,220 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-09-20 13:29:32,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:32,220 INFO L225 Difference]: With dead ends: 110 [2019-09-20 13:29:32,221 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:32,221 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:29:32,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:32,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:32,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:32,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2019-09-20 13:29:32,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:32,222 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:32,222 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:32,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:32,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:32,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:32 BoogieIcfgContainer [2019-09-20 13:29:32,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:32,231 INFO L168 Benchmark]: Toolchain (without parser) took 3966.61 ms. Allocated memory was 134.2 MB in the beginning and 258.5 MB in the end (delta: 124.3 MB). Free memory was 87.9 MB in the beginning and 183.7 MB in the end (delta: -95.8 MB). Peak memory consumption was 28.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,232 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 134.2 MB. Free memory was 107.2 MB in the beginning and 107.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.76 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 87.7 MB in the beginning and 167.3 MB in the end (delta: -79.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,234 INFO L168 Benchmark]: Boogie Preprocessor took 119.38 ms. Allocated memory is still 201.3 MB. Free memory was 167.3 MB in the beginning and 163.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,235 INFO L168 Benchmark]: RCFGBuilder took 1154.92 ms. Allocated memory was 201.3 MB in the beginning and 228.1 MB in the end (delta: 26.7 MB). Free memory was 163.1 MB in the beginning and 199.2 MB in the end (delta: -36.1 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,236 INFO L168 Benchmark]: TraceAbstraction took 1989.06 ms. Allocated memory was 228.1 MB in the beginning and 258.5 MB in the end (delta: 30.4 MB). Free memory was 199.2 MB in the beginning and 183.7 MB in the end (delta: 15.5 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:32,240 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 134.2 MB. Free memory was 107.2 MB in the beginning and 107.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 695.76 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 87.7 MB in the beginning and 167.3 MB in the end (delta: -79.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 119.38 ms. Allocated memory is still 201.3 MB. Free memory was 167.3 MB in the beginning and 163.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1154.92 ms. Allocated memory was 201.3 MB in the beginning and 228.1 MB in the end (delta: 26.7 MB). Free memory was 163.1 MB in the beginning and 199.2 MB in the end (delta: -36.1 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1989.06 ms. Allocated memory was 228.1 MB in the beginning and 258.5 MB in the end (delta: 30.4 MB). Free memory was 199.2 MB in the beginning and 183.7 MB in the end (delta: 15.5 MB). Peak memory consumption was 45.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 205 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 440 SDtfs, 172 SDslu, 728 SDs, 0 SdLazy, 173 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=139occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 259 NumberOfCodeBlocks, 259 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 24632 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...