java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product10.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:58:14,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:58:14,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:58:14,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:58:14,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:58:14,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:58:14,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:58:14,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:58:14,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:58:14,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:58:14,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:58:14,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:58:14,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:58:14,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:58:14,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:58:14,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:58:14,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:58:14,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:58:14,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:58:14,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:58:14,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:58:14,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:58:14,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:58:14,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:58:14,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:58:14,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:58:14,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:58:14,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:58:14,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:58:14,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:58:14,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:58:14,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:58:14,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:58:14,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:58:14,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:58:14,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:58:14,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:58:14,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:58:14,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:58:14,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:58:14,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:58:14,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 02:58:14,364 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:58:14,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:58:14,365 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:58:14,365 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:58:14,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:58:14,366 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:58:14,367 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:58:14,367 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:58:14,367 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:58:14,367 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:58:14,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:58:14,368 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:58:14,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:58:14,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:58:14,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:58:14,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:58:14,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:58:14,369 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:58:14,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:58:14,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:58:14,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:58:14,370 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:58:14,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:58:14,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:14,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:58:14,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:58:14,371 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:58:14,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:58:14,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:58:14,372 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:58:14,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:58:14,423 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:58:14,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:58:14,428 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:58:14,429 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:58:14,430 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product10.cil.c [2019-10-03 02:58:14,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fda72af3/e3a3da462fc642a3923e4464210a5942/FLAG226bccb5a [2019-10-03 02:58:15,107 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:58:15,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product10.cil.c [2019-10-03 02:58:15,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fda72af3/e3a3da462fc642a3923e4464210a5942/FLAG226bccb5a [2019-10-03 02:58:15,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fda72af3/e3a3da462fc642a3923e4464210a5942 [2019-10-03 02:58:15,390 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:58:15,391 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:58:15,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:15,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:58:15,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:58:15,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:15" (1/1) ... [2019-10-03 02:58:15,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4ad246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:15, skipping insertion in model container [2019-10-03 02:58:15,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:58:15" (1/1) ... [2019-10-03 02:58:15,407 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:58:15,478 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:58:15,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:15,916 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:58:16,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:58:16,073 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:58:16,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:16 WrapperNode [2019-10-03 02:58:16,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:58:16,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:58:16,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:58:16,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:58:16,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:16" (1/1) ... [2019-10-03 02:58:16,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:16" (1/1) ... [2019-10-03 02:58:16,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:16" (1/1) ... [2019-10-03 02:58:16,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:16" (1/1) ... [2019-10-03 02:58:16,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:16" (1/1) ... [2019-10-03 02:58:16,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:16" (1/1) ... [2019-10-03 02:58:16,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:16" (1/1) ... [2019-10-03 02:58:16,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:58:16,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:58:16,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:58:16,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:58:16,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:58:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:58:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:58:16,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:58:16,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:58:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:58:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:58:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:58:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:58:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:58:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:58:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:58:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:58:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:58:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-10-03 02:58:16,222 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:58:16,223 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:58:16,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:58:16,223 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:58:16,223 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:58:16,223 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:58:16,223 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:58:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:58:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:58:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:58:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:58:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:58:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:58:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:58:16,225 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:58:16,225 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:58:16,225 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:58:16,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:58:16,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:58:16,225 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:58:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:58:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:58:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:58:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-03 02:58:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:58:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:58:16,226 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:58:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:58:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:58:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:58:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:58:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:58:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:58:16,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:58:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:58:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:58:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:58:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:58:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:58:16,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:58:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:58:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:58:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:58:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:58:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:58:16,229 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:58:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:58:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:58:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:58:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:58:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:58:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:58:16,230 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:58:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:58:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:58:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:58:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:58:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:58:16,231 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:58:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:58:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:58:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-10-03 02:58:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:58:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:58:16,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:58:16,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:58:16,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:58:17,348 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:58:17,349 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:58:17,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:17 BoogieIcfgContainer [2019-10-03 02:58:17,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:58:17,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:58:17,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:58:17,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:58:17,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:58:15" (1/3) ... [2019-10-03 02:58:17,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2555f518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:17, skipping insertion in model container [2019-10-03 02:58:17,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:58:16" (2/3) ... [2019-10-03 02:58:17,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2555f518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:58:17, skipping insertion in model container [2019-10-03 02:58:17,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:58:17" (3/3) ... [2019-10-03 02:58:17,383 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product10.cil.c [2019-10-03 02:58:17,394 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:58:17,404 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:58:17,421 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:58:17,444 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:58:17,444 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:58:17,445 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:58:17,445 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:58:17,446 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:58:17,446 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:58:17,447 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:58:17,447 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:58:17,478 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2019-10-03 02:58:17,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:58:17,490 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:17,491 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:17,493 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:17,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:17,500 INFO L82 PathProgramCache]: Analyzing trace with hash 1687671781, now seen corresponding path program 1 times [2019-10-03 02:58:17,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:17,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:17,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:17,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:17,563 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:17,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:17,887 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:17,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:58:17,888 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:17,895 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:58:17,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:58:17,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:17,919 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2019-10-03 02:58:17,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:17,966 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2019-10-03 02:58:17,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:58:17,968 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:58:17,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:17,983 INFO L225 Difference]: With dead ends: 96 [2019-10-03 02:58:17,983 INFO L226 Difference]: Without dead ends: 85 [2019-10-03 02:58:17,987 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:58:18,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-10-03 02:58:18,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-10-03 02:58:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-10-03 02:58:18,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 98 transitions. [2019-10-03 02:58:18,070 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 98 transitions. Word has length 46 [2019-10-03 02:58:18,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:18,072 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 98 transitions. [2019-10-03 02:58:18,072 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:58:18,072 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 98 transitions. [2019-10-03 02:58:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:58:18,079 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:18,079 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:18,080 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:18,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:18,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1046203216, now seen corresponding path program 1 times [2019-10-03 02:58:18,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:18,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:18,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:18,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:18,085 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:18,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:18,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:18,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:18,269 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:18,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:18,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:18,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:18,274 INFO L87 Difference]: Start difference. First operand 85 states and 98 transitions. Second operand 3 states. [2019-10-03 02:58:18,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:18,287 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2019-10-03 02:58:18,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:18,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:58:18,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:18,289 INFO L225 Difference]: With dead ends: 76 [2019-10-03 02:58:18,290 INFO L226 Difference]: Without dead ends: 76 [2019-10-03 02:58:18,291 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:18,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-10-03 02:58:18,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-10-03 02:58:18,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-10-03 02:58:18,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2019-10-03 02:58:18,299 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 47 [2019-10-03 02:58:18,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:18,300 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2019-10-03 02:58:18,300 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:18,300 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2019-10-03 02:58:18,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:58:18,302 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:18,302 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:18,302 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:18,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:18,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1948536442, now seen corresponding path program 1 times [2019-10-03 02:58:18,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:18,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:18,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:18,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:18,306 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:18,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:18,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:18,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:58:18,483 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:18,483 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:58:18,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:58:18,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:58:18,484 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 7 states. [2019-10-03 02:58:18,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:18,735 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2019-10-03 02:58:18,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:18,736 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-10-03 02:58:18,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:18,737 INFO L225 Difference]: With dead ends: 76 [2019-10-03 02:58:18,738 INFO L226 Difference]: Without dead ends: 76 [2019-10-03 02:58:18,738 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:18,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-10-03 02:58:18,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-10-03 02:58:18,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-10-03 02:58:18,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-10-03 02:58:18,745 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 52 [2019-10-03 02:58:18,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:18,746 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-10-03 02:58:18,746 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:58:18,746 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-10-03 02:58:18,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-03 02:58:18,747 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:18,747 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:18,748 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:18,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:18,748 INFO L82 PathProgramCache]: Analyzing trace with hash -952018290, now seen corresponding path program 1 times [2019-10-03 02:58:18,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:18,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:18,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:18,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:18,752 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:18,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:18,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:18,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:58:18,948 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:18,948 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:58:18,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:58:18,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:58:18,949 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 10 states. [2019-10-03 02:58:19,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:19,502 INFO L93 Difference]: Finished difference Result 160 states and 190 transitions. [2019-10-03 02:58:19,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-03 02:58:19,502 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2019-10-03 02:58:19,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:19,508 INFO L225 Difference]: With dead ends: 160 [2019-10-03 02:58:19,508 INFO L226 Difference]: Without dead ends: 160 [2019-10-03 02:58:19,509 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:58:19,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-10-03 02:58:19,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 156. [2019-10-03 02:58:19,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-10-03 02:58:19,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 183 transitions. [2019-10-03 02:58:19,540 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 183 transitions. Word has length 55 [2019-10-03 02:58:19,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:19,541 INFO L475 AbstractCegarLoop]: Abstraction has 156 states and 183 transitions. [2019-10-03 02:58:19,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:19,541 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 183 transitions. [2019-10-03 02:58:19,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:58:19,546 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:19,546 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:19,549 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:19,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:19,550 INFO L82 PathProgramCache]: Analyzing trace with hash -939297624, now seen corresponding path program 1 times [2019-10-03 02:58:19,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:19,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:19,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:19,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:19,557 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:19,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:58:19,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:19,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:58:19,624 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:19,625 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:58:19,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:58:19,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:19,626 INFO L87 Difference]: Start difference. First operand 156 states and 183 transitions. Second operand 3 states. [2019-10-03 02:58:19,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:19,635 INFO L93 Difference]: Finished difference Result 146 states and 164 transitions. [2019-10-03 02:58:19,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:58:19,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-10-03 02:58:19,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:19,637 INFO L225 Difference]: With dead ends: 146 [2019-10-03 02:58:19,637 INFO L226 Difference]: Without dead ends: 146 [2019-10-03 02:58:19,638 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:58:19,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-10-03 02:58:19,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2019-10-03 02:58:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-10-03 02:58:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 164 transitions. [2019-10-03 02:58:19,648 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 164 transitions. Word has length 59 [2019-10-03 02:58:19,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:19,648 INFO L475 AbstractCegarLoop]: Abstraction has 146 states and 164 transitions. [2019-10-03 02:58:19,648 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:58:19,648 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 164 transitions. [2019-10-03 02:58:19,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-03 02:58:19,650 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:58:19,650 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:58:19,651 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:58:19,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:58:19,651 INFO L82 PathProgramCache]: Analyzing trace with hash 147904096, now seen corresponding path program 1 times [2019-10-03 02:58:19,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:58:19,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:19,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:58:19,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:58:19,654 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:58:19,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:58:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-03 02:58:19,756 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:58:19,756 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:58:19,756 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:58:19,756 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:58:19,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:58:19,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:58:19,757 INFO L87 Difference]: Start difference. First operand 146 states and 164 transitions. Second operand 6 states. [2019-10-03 02:58:19,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:19,900 INFO L93 Difference]: Finished difference Result 145 states and 163 transitions. [2019-10-03 02:58:19,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:58:19,901 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2019-10-03 02:58:19,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:19,902 INFO L225 Difference]: With dead ends: 145 [2019-10-03 02:58:19,902 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:19,902 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:58:19,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:19,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:19,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:19,906 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2019-10-03 02:58:19,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:19,906 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:19,906 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:58:19,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:19,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:19,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:19 BoogieIcfgContainer [2019-10-03 02:58:19,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:19,919 INFO L168 Benchmark]: Toolchain (without parser) took 4525.54 ms. Allocated memory was 132.6 MB in the beginning and 264.2 MB in the end (delta: 131.6 MB). Free memory was 87.1 MB in the beginning and 129.9 MB in the end (delta: -42.8 MB). Peak memory consumption was 88.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:19,922 INFO L168 Benchmark]: CDTParser took 1.31 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:58:19,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.35 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 86.9 MB in the beginning and 165.1 MB in the end (delta: -78.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:19,925 INFO L168 Benchmark]: Boogie Preprocessor took 82.29 ms. Allocated memory is still 199.8 MB. Free memory was 165.1 MB in the beginning and 161.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:19,927 INFO L168 Benchmark]: RCFGBuilder took 1193.26 ms. Allocated memory is still 199.8 MB. Free memory was 161.3 MB in the beginning and 78.4 MB in the end (delta: 82.8 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:19,928 INFO L168 Benchmark]: TraceAbstraction took 2563.00 ms. Allocated memory was 199.8 MB in the beginning and 264.2 MB in the end (delta: 64.5 MB). Free memory was 77.8 MB in the beginning and 129.9 MB in the end (delta: -52.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:19,937 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.31 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 682.35 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 86.9 MB in the beginning and 165.1 MB in the end (delta: -78.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.29 ms. Allocated memory is still 199.8 MB. Free memory was 165.1 MB in the beginning and 161.3 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1193.26 ms. Allocated memory is still 199.8 MB. Free memory was 161.3 MB in the beginning and 78.4 MB in the end (delta: 82.8 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2563.00 ms. Allocated memory was 199.8 MB in the beginning and 264.2 MB in the end (delta: 64.5 MB). Free memory was 77.8 MB in the beginning and 129.9 MB in the end (delta: -52.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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, 2.4s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 521 SDtfs, 296 SDslu, 969 SDs, 0 SdLazy, 332 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 349 NumberOfCodeBlocks, 349 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 343 ConstructedInterpolants, 0 QuantifiedInterpolants, 40993 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 27/27 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...