java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:58,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:58,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:58,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:58,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:58,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:58,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:58,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:58,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:58,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:58,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:58,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:58,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:58,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:58,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:58,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:58,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:58,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:58,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:58,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:58,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:58,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:58,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:58,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:58,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:58,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:58,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:58,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:58,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:58,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:58,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:58,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:58,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:58,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:58,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:58,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:58,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:58,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:58,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:58,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:58,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:58,311 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 13:29:58,325 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:58,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:58,326 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:58,326 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:58,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:58,327 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:58,327 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:58,327 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:58,328 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:58,328 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:58,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:58,329 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:58,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:58,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:58,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:58,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:58,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:58,330 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:58,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:58,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:58,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:58,331 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:58,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:58,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:58,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:58,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:58,332 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:58,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:58,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:58,332 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:58,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:58,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:58,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:58,376 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:58,377 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:58,377 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product16.cil.c [2019-09-20 13:29:58,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a14e3af0/18fc8d3cc2df46a9b5a378b0c9506f97/FLAG455fcd173 [2019-09-20 13:29:58,863 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:58,863 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product16.cil.c [2019-09-20 13:29:58,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a14e3af0/18fc8d3cc2df46a9b5a378b0c9506f97/FLAG455fcd173 [2019-09-20 13:29:59,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a14e3af0/18fc8d3cc2df46a9b5a378b0c9506f97 [2019-09-20 13:29:59,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:59,200 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:59,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:59,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:59,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:59,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a08c2eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59, skipping insertion in model container [2019-09-20 13:29:59,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,221 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:59,268 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:59,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:59,645 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:59,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:59,902 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:59,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59 WrapperNode [2019-09-20 13:29:59,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:59,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:59,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:59,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:59,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:29:59,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (1/1) ... [2019-09-20 13:30:00,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:00,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:00,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:00,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:00,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (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 13:30:00,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:00,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:00,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:00,090 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:00,090 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:00,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:00,091 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:00,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:00,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:00,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:00,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:00,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:00,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:00,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:00,095 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:00,096 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:00,096 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:00,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:00,096 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:00,096 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:00,096 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-20 13:30:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:00,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:00,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:00,101 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:00,102 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:00,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:00,112 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:00,112 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:00,112 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-20 13:30:00,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:00,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:00,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:01,192 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:01,192 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:01,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:01 BoogieIcfgContainer [2019-09-20 13:30:01,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:01,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:01,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:01,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:01,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:59" (1/3) ... [2019-09-20 13:30:01,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8ad309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:01, skipping insertion in model container [2019-09-20 13:30:01,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:59" (2/3) ... [2019-09-20 13:30:01,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8ad309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:01, skipping insertion in model container [2019-09-20 13:30:01,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:01" (3/3) ... [2019-09-20 13:30:01,203 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product16.cil.c [2019-09-20 13:30:01,213 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:01,222 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:01,239 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:01,265 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:01,266 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:01,266 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:01,266 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:01,267 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:01,267 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:01,267 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:01,267 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2019-09-20 13:30:01,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:01,299 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:01,300 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:01,302 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:01,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:01,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1266461352, now seen corresponding path program 1 times [2019-09-20 13:30:01,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:01,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:01,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,368 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:01,700 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 13:30:01,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:01,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:01,703 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:01,710 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:01,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:01,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:01,728 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2019-09-20 13:30:01,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:01,756 INFO L93 Difference]: Finished difference Result 125 states and 146 transitions. [2019-09-20 13:30:01,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:01,757 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:01,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:01,770 INFO L225 Difference]: With dead ends: 125 [2019-09-20 13:30:01,770 INFO L226 Difference]: Without dead ends: 114 [2019-09-20 13:30:01,772 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 13:30:01,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-20 13:30:01,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-20 13:30:01,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-20 13:30:01,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 134 transitions. [2019-09-20 13:30:01,825 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 134 transitions. Word has length 51 [2019-09-20 13:30:01,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:01,825 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 134 transitions. [2019-09-20 13:30:01,825 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 134 transitions. [2019-09-20 13:30:01,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:01,829 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:01,829 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 13:30:01,829 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:01,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:01,831 INFO L82 PathProgramCache]: Analyzing trace with hash 65491606, now seen corresponding path program 1 times [2019-09-20 13:30:01,831 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:01,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:01,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:01,834 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:01,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:01,946 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 13:30:01,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:01,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:01,947 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:01,950 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:01,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:01,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:01,951 INFO L87 Difference]: Start difference. First operand 114 states and 134 transitions. Second operand 3 states. [2019-09-20 13:30:01,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:01,981 INFO L93 Difference]: Finished difference Result 105 states and 122 transitions. [2019-09-20 13:30:01,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:01,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:01,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:01,986 INFO L225 Difference]: With dead ends: 105 [2019-09-20 13:30:01,987 INFO L226 Difference]: Without dead ends: 105 [2019-09-20 13:30:01,988 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 13:30:01,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-09-20 13:30:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-09-20 13:30:02,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-20 13:30:02,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 122 transitions. [2019-09-20 13:30:02,010 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 122 transitions. Word has length 52 [2019-09-20 13:30:02,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:02,011 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 122 transitions. [2019-09-20 13:30:02,012 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:02,012 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 122 transitions. [2019-09-20 13:30:02,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:02,018 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:02,018 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] [2019-09-20 13:30:02,018 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:02,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:02,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1072526847, now seen corresponding path program 1 times [2019-09-20 13:30:02,019 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:02,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:02,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,022 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:02,196 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 13:30:02,196 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:02,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:02,197 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:02,197 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:02,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:02,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:02,198 INFO L87 Difference]: Start difference. First operand 105 states and 122 transitions. Second operand 7 states. [2019-09-20 13:30:02,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:02,588 INFO L93 Difference]: Finished difference Result 233 states and 282 transitions. [2019-09-20 13:30:02,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:02,588 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:02,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:02,592 INFO L225 Difference]: With dead ends: 233 [2019-09-20 13:30:02,592 INFO L226 Difference]: Without dead ends: 233 [2019-09-20 13:30:02,592 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 13:30:02,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-09-20 13:30:02,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 221. [2019-09-20 13:30:02,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-09-20 13:30:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 270 transitions. [2019-09-20 13:30:02,629 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 270 transitions. Word has length 57 [2019-09-20 13:30:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:02,630 INFO L475 AbstractCegarLoop]: Abstraction has 221 states and 270 transitions. [2019-09-20 13:30:02,630 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 270 transitions. [2019-09-20 13:30:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:30:02,632 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:02,632 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:02,633 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:02,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:02,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1689182460, now seen corresponding path program 1 times [2019-09-20 13:30:02,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:02,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:02,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:02,640 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:02,772 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 13:30:02,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:02,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:02,773 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:02,774 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:02,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:02,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:02,775 INFO L87 Difference]: Start difference. First operand 221 states and 270 transitions. Second operand 6 states. [2019-09-20 13:30:02,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:02,953 INFO L93 Difference]: Finished difference Result 396 states and 486 transitions. [2019-09-20 13:30:02,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:02,955 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:30:02,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:02,963 INFO L225 Difference]: With dead ends: 396 [2019-09-20 13:30:02,963 INFO L226 Difference]: Without dead ends: 396 [2019-09-20 13:30:02,966 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 13:30:02,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2019-09-20 13:30:03,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 390. [2019-09-20 13:30:03,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-09-20 13:30:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 480 transitions. [2019-09-20 13:30:03,023 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 480 transitions. Word has length 62 [2019-09-20 13:30:03,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:03,023 INFO L475 AbstractCegarLoop]: Abstraction has 390 states and 480 transitions. [2019-09-20 13:30:03,023 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 480 transitions. [2019-09-20 13:30:03,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:30:03,028 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:03,028 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:03,029 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:03,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:03,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1702077928, now seen corresponding path program 1 times [2019-09-20 13:30:03,029 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:03,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:03,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:03,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:03,033 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:03,125 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 13:30:03,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:03,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:03,126 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:03,126 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:03,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:03,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:03,127 INFO L87 Difference]: Start difference. First operand 390 states and 480 transitions. Second operand 7 states. [2019-09-20 13:30:03,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:03,473 INFO L93 Difference]: Finished difference Result 302 states and 349 transitions. [2019-09-20 13:30:03,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:03,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-20 13:30:03,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:03,474 INFO L225 Difference]: With dead ends: 302 [2019-09-20 13:30:03,474 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:03,475 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:30:03,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:03,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:03,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:03,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:03,476 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-20 13:30:03,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:03,476 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:03,476 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:03,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:03,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:03,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:03 BoogieIcfgContainer [2019-09-20 13:30:03,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:03,485 INFO L168 Benchmark]: Toolchain (without parser) took 4283.63 ms. Allocated memory was 140.0 MB in the beginning and 266.9 MB in the end (delta: 126.9 MB). Free memory was 87.0 MB in the beginning and 205.2 MB in the end (delta: -118.2 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,486 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,487 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.81 ms. Allocated memory was 140.0 MB in the beginning and 218.1 MB in the end (delta: 78.1 MB). Free memory was 86.8 MB in the beginning and 194.5 MB in the end (delta: -107.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,487 INFO L168 Benchmark]: Boogie Preprocessor took 103.06 ms. Allocated memory is still 218.1 MB. Free memory was 194.5 MB in the beginning and 189.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,488 INFO L168 Benchmark]: RCFGBuilder took 1187.89 ms. Allocated memory is still 218.1 MB. Free memory was 189.8 MB in the beginning and 103.4 MB in the end (delta: 86.5 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:03,489 INFO L168 Benchmark]: TraceAbstraction took 2286.33 ms. Allocated memory was 218.1 MB in the beginning and 266.9 MB in the end (delta: 48.8 MB). Free memory was 103.4 MB in the beginning and 205.2 MB in the end (delta: -101.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:30:03,497 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 700.81 ms. Allocated memory was 140.0 MB in the beginning and 218.1 MB in the end (delta: 78.1 MB). Free memory was 86.8 MB in the beginning and 194.5 MB in the end (delta: -107.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.06 ms. Allocated memory is still 218.1 MB. Free memory was 194.5 MB in the beginning and 189.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1187.89 ms. Allocated memory is still 218.1 MB. Free memory was 189.8 MB in the beginning and 103.4 MB in the end (delta: 86.5 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2286.33 ms. Allocated memory was 218.1 MB in the beginning and 266.9 MB in the end (delta: 48.8 MB). Free memory was 103.4 MB in the beginning and 205.2 MB in the end (delta: -101.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 448]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 226 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 635 SDtfs, 361 SDslu, 1206 SDs, 0 SdLazy, 432 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=390occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 30083 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...