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_spec3_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:49:23,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:49:23,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:49:23,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:49:23,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:49:23,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:49:23,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:49:23,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:49:23,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:49:23,399 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:49:23,400 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:49:23,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:49:23,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:49:23,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:49:23,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:49:23,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:49:23,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:49:23,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:49:23,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:49:23,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:49:23,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:49:23,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:49:23,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:49:23,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:49:23,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:49:23,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:49:23,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:49:23,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:49:23,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:49:23,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:49:23,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:49:23,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:49:23,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:49:23,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:49:23,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:49:23,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:49:23,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:49:23,440 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:49:23,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:49:23,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:49:23,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:49:23,443 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 [2019-09-10 02:49:23,475 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:49:23,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:49:23,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:49:23,476 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:49:23,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:49:23,477 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:49:23,478 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:49:23,479 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:49:23,479 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:49:23,479 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:49:23,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:49:23,481 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:49:23,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:49:23,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:49:23,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:49:23,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:49:23,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:49:23,482 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:49:23,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:49:23,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:49:23,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:49:23,484 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:49:23,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:49:23,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:49:23,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:49:23,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:49:23,485 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:49:23,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:49:23,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:49:23,485 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:49:23,526 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:49:23,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:49:23,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:49:23,549 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:49:23,550 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:49:23,551 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product26.cil.c [2019-09-10 02:49:23,622 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32655f466/6d42364c01364533b2210f7c32009112/FLAGe84677da2 [2019-09-10 02:49:24,095 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:49:24,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product26.cil.c [2019-09-10 02:49:24,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32655f466/6d42364c01364533b2210f7c32009112/FLAGe84677da2 [2019-09-10 02:49:24,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32655f466/6d42364c01364533b2210f7c32009112 [2019-09-10 02:49:24,443 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:49:24,444 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:49:24,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:24,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:49:24,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:49:24,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:24" (1/1) ... [2019-09-10 02:49:24,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4a666 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:24, skipping insertion in model container [2019-09-10 02:49:24,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:49:24" (1/1) ... [2019-09-10 02:49:24,460 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:49:24,520 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:49:25,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:25,026 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:49:25,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:49:25,148 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:49:25,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:25 WrapperNode [2019-09-10 02:49:25,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:49:25,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:49:25,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:49:25,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:49:25,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:25" (1/1) ... [2019-09-10 02:49:25,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:25" (1/1) ... [2019-09-10 02:49:25,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:25" (1/1) ... [2019-09-10 02:49:25,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:25" (1/1) ... [2019-09-10 02:49:25,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:25" (1/1) ... [2019-09-10 02:49:25,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:25" (1/1) ... [2019-09-10 02:49:25,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:25" (1/1) ... [2019-09-10 02:49:25,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:49:25,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:49:25,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:49:25,261 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:49:25,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:25" (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 [2019-09-10 02:49:25,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:49:25,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:49:25,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:25,344 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:49:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:49:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:49:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:49:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:49:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:49:25,345 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:49:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:49:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:49:25,346 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:49:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:49:25,347 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:49:25,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:49:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:49:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:49:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:49:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:25,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:49:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:49:25,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:49:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:49:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:49:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:49:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:49:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:49:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:49:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:49:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:49:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:49:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:49:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:49:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:49:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:49:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:49:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:49:25,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:49:25,354 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:49:25,354 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:49:25,354 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:49:25,354 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:49:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:49:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:49:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:49:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:49:25,355 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:49:25,356 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:49:25,356 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:49:25,356 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:49:25,356 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:49:25,356 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:49:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:49:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:49:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:49:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:49:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:49:25,357 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:49:25,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:49:25,358 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:49:25,358 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:49:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:49:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:49:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:49:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:49:25,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:49:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:49:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:49:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:49:25,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:49:25,361 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:49:25,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:49:25,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:49:25,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:49:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:49:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:49:25,362 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:49:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:49:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:49:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:49:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-10 02:49:25,363 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:49:25,364 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:49:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:49:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-10 02:49:25,365 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:49:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:49:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:49:25,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:49:26,677 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:49:26,677 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:49:26,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:26 BoogieIcfgContainer [2019-09-10 02:49:26,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:49:26,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:49:26,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:49:26,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:49:26,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:49:24" (1/3) ... [2019-09-10 02:49:26,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b120737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:26, skipping insertion in model container [2019-09-10 02:49:26,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:49:25" (2/3) ... [2019-09-10 02:49:26,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b120737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:49:26, skipping insertion in model container [2019-09-10 02:49:26,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:49:26" (3/3) ... [2019-09-10 02:49:26,688 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product26.cil.c [2019-09-10 02:49:26,699 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:49:26,708 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:49:26,726 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:49:26,760 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:49:26,760 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:49:26,760 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:49:26,760 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:49:26,761 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:49:26,761 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:49:26,761 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:49:26,761 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:49:26,791 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states. [2019-09-10 02:49:26,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:49:26,809 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:26,811 INFO L399 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] [2019-09-10 02:49:26,814 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:26,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:26,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1563256651, now seen corresponding path program 1 times [2019-09-10 02:49:26,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:26,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:26,879 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:26,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:26,879 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:27,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:27,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:27,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:49:27,160 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:27,167 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:27,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:27,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:27,185 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 2 states. [2019-09-10 02:49:27,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:27,209 INFO L93 Difference]: Finished difference Result 125 states and 144 transitions. [2019-09-10 02:49:27,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:27,211 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-09-10 02:49:27,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:27,223 INFO L225 Difference]: With dead ends: 125 [2019-09-10 02:49:27,224 INFO L226 Difference]: Without dead ends: 114 [2019-09-10 02:49:27,226 INFO L628 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 [2019-09-10 02:49:27,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-09-10 02:49:27,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-09-10 02:49:27,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-10 02:49:27,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2019-09-10 02:49:27,279 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 52 [2019-09-10 02:49:27,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:27,279 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2019-09-10 02:49:27,280 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:27,280 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2019-09-10 02:49:27,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 02:49:27,283 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:27,283 INFO L399 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] [2019-09-10 02:49:27,284 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:27,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:27,284 INFO L82 PathProgramCache]: Analyzing trace with hash 129011283, now seen corresponding path program 1 times [2019-09-10 02:49:27,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:27,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:27,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:27,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:27,286 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:27,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:27,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:27,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:27,444 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:27,446 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:27,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:27,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:27,447 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 3 states. [2019-09-10 02:49:27,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:27,461 INFO L93 Difference]: Finished difference Result 105 states and 120 transitions. [2019-09-10 02:49:27,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:27,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-09-10 02:49:27,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:27,464 INFO L225 Difference]: With dead ends: 105 [2019-09-10 02:49:27,464 INFO L226 Difference]: Without dead ends: 105 [2019-09-10 02:49:27,465 INFO L628 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 [2019-09-10 02:49:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-09-10 02:49:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-09-10 02:49:27,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-10 02:49:27,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2019-09-10 02:49:27,477 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 53 [2019-09-10 02:49:27,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:27,477 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2019-09-10 02:49:27,477 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:27,478 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2019-09-10 02:49:27,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-10 02:49:27,480 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:27,480 INFO L399 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] [2019-09-10 02:49:27,480 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:27,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:27,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1511338084, now seen corresponding path program 1 times [2019-09-10 02:49:27,481 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:27,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:27,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:27,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:27,482 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:27,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:27,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:27,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:27,605 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:27,606 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:27,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:27,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:27,607 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 7 states. [2019-09-10 02:49:27,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:27,915 INFO L93 Difference]: Finished difference Result 105 states and 119 transitions. [2019-09-10 02:49:27,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:27,916 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-09-10 02:49:27,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:27,918 INFO L225 Difference]: With dead ends: 105 [2019-09-10 02:49:27,918 INFO L226 Difference]: Without dead ends: 105 [2019-09-10 02:49:27,919 INFO L628 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 [2019-09-10 02:49:27,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-09-10 02:49:27,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-09-10 02:49:27,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-10 02:49:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 119 transitions. [2019-09-10 02:49:27,941 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 119 transitions. Word has length 58 [2019-09-10 02:49:27,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:27,942 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 119 transitions. [2019-09-10 02:49:27,942 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:27,942 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 119 transitions. [2019-09-10 02:49:27,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 02:49:27,950 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:27,950 INFO L399 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] [2019-09-10 02:49:27,950 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:27,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:27,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1273380087, now seen corresponding path program 1 times [2019-09-10 02:49:27,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:27,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:27,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:27,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:27,954 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:28,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:28,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:28,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:28,126 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:28,126 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:28,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:28,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:28,127 INFO L87 Difference]: Start difference. First operand 105 states and 119 transitions. Second operand 6 states. [2019-09-10 02:49:28,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:28,345 INFO L93 Difference]: Finished difference Result 175 states and 203 transitions. [2019-09-10 02:49:28,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:49:28,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-09-10 02:49:28,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:28,350 INFO L225 Difference]: With dead ends: 175 [2019-09-10 02:49:28,350 INFO L226 Difference]: Without dead ends: 175 [2019-09-10 02:49:28,350 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:28,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-09-10 02:49:28,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2019-09-10 02:49:28,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-09-10 02:49:28,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 201 transitions. [2019-09-10 02:49:28,374 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 201 transitions. Word has length 66 [2019-09-10 02:49:28,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:28,374 INFO L475 AbstractCegarLoop]: Abstraction has 173 states and 201 transitions. [2019-09-10 02:49:28,375 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:28,375 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 201 transitions. [2019-09-10 02:49:28,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 02:49:28,377 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:28,377 INFO L399 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, 1, 1, 1, 1] [2019-09-10 02:49:28,378 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:28,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:28,378 INFO L82 PathProgramCache]: Analyzing trace with hash -1502182801, now seen corresponding path program 1 times [2019-09-10 02:49:28,378 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:28,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:28,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:28,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:28,380 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:28,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:28,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:28,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:28,443 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:28,443 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:28,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:28,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:28,444 INFO L87 Difference]: Start difference. First operand 173 states and 201 transitions. Second operand 3 states. [2019-09-10 02:49:28,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:28,453 INFO L93 Difference]: Finished difference Result 131 states and 146 transitions. [2019-09-10 02:49:28,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:28,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-09-10 02:49:28,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:28,455 INFO L225 Difference]: With dead ends: 131 [2019-09-10 02:49:28,455 INFO L226 Difference]: Without dead ends: 131 [2019-09-10 02:49:28,456 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:28,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-10 02:49:28,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-10 02:49:28,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-10 02:49:28,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 146 transitions. [2019-09-10 02:49:28,465 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 146 transitions. Word has length 70 [2019-09-10 02:49:28,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:28,466 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 146 transitions. [2019-09-10 02:49:28,466 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:28,466 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 146 transitions. [2019-09-10 02:49:28,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 02:49:28,467 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:28,468 INFO L399 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, 1, 1, 1, 1] [2019-09-10 02:49:28,468 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:28,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:28,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1264318339, now seen corresponding path program 1 times [2019-09-10 02:49:28,469 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:28,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:28,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:28,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:28,470 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:49:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-10 02:49:29,247 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-10 02:49:29,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:29 BoogieIcfgContainer [2019-09-10 02:49:29,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:29,398 INFO L168 Benchmark]: Toolchain (without parser) took 4950.71 ms. Allocated memory was 135.8 MB in the beginning and 254.3 MB in the end (delta: 118.5 MB). Free memory was 91.0 MB in the beginning and 172.0 MB in the end (delta: -81.0 MB). Peak memory consumption was 127.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:29,399 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 135.8 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:29,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.51 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 90.8 MB in the beginning and 165.4 MB in the end (delta: -74.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:29,402 INFO L168 Benchmark]: Boogie Preprocessor took 110.01 ms. Allocated memory is still 200.8 MB. Free memory was 165.4 MB in the beginning and 161.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:29,403 INFO L168 Benchmark]: RCFGBuilder took 1418.88 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 161.2 MB in the beginning and 194.6 MB in the end (delta: -33.4 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:29,405 INFO L168 Benchmark]: TraceAbstraction took 2712.73 ms. Allocated memory was 230.7 MB in the beginning and 254.3 MB in the end (delta: 23.6 MB). Free memory was 194.6 MB in the beginning and 172.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 136.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:29,413 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 135.8 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.51 ms. Allocated memory was 135.8 MB in the beginning and 200.8 MB in the end (delta: 65.0 MB). Free memory was 90.8 MB in the beginning and 165.4 MB in the end (delta: -74.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.01 ms. Allocated memory is still 200.8 MB. Free memory was 165.4 MB in the beginning and 161.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1418.88 ms. Allocated memory was 200.8 MB in the beginning and 230.7 MB in the end (delta: 29.9 MB). Free memory was 161.2 MB in the beginning and 194.6 MB in the end (delta: -33.4 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2712.73 ms. Allocated memory was 230.7 MB in the beginning and 254.3 MB in the end (delta: 23.6 MB). Free memory was 194.6 MB in the beginning and 172.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 136.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 643]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L184] int waterLevel = 1; [L185] int methaneLevelCritical = 0; [L442] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int pumpRunning = 0; [L653] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] int splverifierCounter ; [L833] int tmp ; [L834] int tmp___0 ; [L835] int tmp___1 ; [L836] int tmp___2 ; [L839] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L841] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L843] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L849] tmp = __VERIFIER_nondet_int() [L851] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L853] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L202] COND TRUE waterLevel < 2 [L203] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L853] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L859] tmp___0 = __VERIFIER_nondet_int() [L861] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L869] tmp___2 = __VERIFIER_nondet_int() [L871] COND FALSE !(\read(tmp___2)) [L877] tmp___1 = __VERIFIER_nondet_int() [L879] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=8, tmp___2=0, waterLevel=2] [L886] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L660] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L667] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L669] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L689] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L692] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L707] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L669] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L675] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L899] int tmp ; [L900] int tmp___0 ; [L901] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L905] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L223] int retValue_acc ; [L226] retValue_acc = methaneLevelCritical [L227] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L905] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L905] tmp = isMethaneLevelCritical() [L907] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L911] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L255] int retValue_acc ; [L258] retValue_acc = waterLevel [L259] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L911] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L911] tmp___0 = getWaterLevel() [L913] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L915] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L759] int retValue_acc ; [L762] retValue_acc = pumpRunning [L763] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L915] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L915] tmp___1 = isPumpRunning() [L917] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L921] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 228 locations, 1 error locations. UNSAFE Result, 2.6s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 595 SDtfs, 255 SDslu, 789 SDs, 0 SdLazy, 181 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=173occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 29730 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 incorrect! Received shutdown request...