/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 10:42:18,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 10:42:18,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 10:42:18,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 10:42:18,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 10:42:18,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 10:42:18,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 10:42:18,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 10:42:18,385 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 10:42:18,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 10:42:18,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 10:42:18,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 10:42:18,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 10:42:18,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 10:42:18,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 10:42:18,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 10:42:18,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 10:42:18,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 10:42:18,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 10:42:18,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 10:42:18,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 10:42:18,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 10:42:18,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 10:42:18,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 10:42:18,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 10:42:18,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 10:42:18,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 10:42:18,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 10:42:18,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 10:42:18,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 10:42:18,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 10:42:18,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 10:42:18,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 10:42:18,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 10:42:18,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 10:42:18,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 10:42:18,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 10:42:18,412 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 10:42:18,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 10:42:18,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 10:42:18,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 10:42:18,414 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 10:42:18,436 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 10:42:18,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 10:42:18,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 10:42:18,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 10:42:18,438 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 10:42:18,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 10:42:18,439 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 10:42:18,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 10:42:18,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 10:42:18,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 10:42:18,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 10:42:18,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 10:42:18,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 10:42:18,440 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 10:42:18,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 10:42:18,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 10:42:18,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 10:42:18,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 10:42:18,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 10:42:18,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 10:42:18,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 10:42:18,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 10:42:18,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 10:42:18,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 10:42:18,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 10:42:18,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 10:42:18,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:18,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 10:42:18,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 10:42:18,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 10:42:18,735 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 10:42:18,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 10:42:18,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 10:42:18,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 10:42:18,765 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 10:42:18,766 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-07-20 10:42:18,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c14edb7ea/62f6a6878a5e49319b8a7667a64e9cc7/FLAG6eca5faea [2020-07-20 10:42:19,397 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 10:42:19,398 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product44.cil.c [2020-07-20 10:42:19,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c14edb7ea/62f6a6878a5e49319b8a7667a64e9cc7/FLAG6eca5faea [2020-07-20 10:42:19,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c14edb7ea/62f6a6878a5e49319b8a7667a64e9cc7 [2020-07-20 10:42:19,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 10:42:19,700 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 10:42:19,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 10:42:19,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 10:42:19,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 10:42:19,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:42:19" (1/1) ... [2020-07-20 10:42:19,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0926b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:19, skipping insertion in model container [2020-07-20 10:42:19,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 10:42:19" (1/1) ... [2020-07-20 10:42:19,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 10:42:19,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 10:42:20,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:42:20,201 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 10:42:20,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 10:42:20,333 INFO L208 MainTranslator]: Completed translation [2020-07-20 10:42:20,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20 WrapperNode [2020-07-20 10:42:20,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 10:42:20,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 10:42:20,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 10:42:20,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 10:42:20,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (1/1) ... [2020-07-20 10:42:20,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 10:42:20,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 10:42:20,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 10:42:20,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 10:42:20,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (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 [2020-07-20 10:42:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 10:42:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 10:42:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 10:42:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 10:42:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 10:42:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 10:42:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 10:42:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 10:42:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:42:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 10:42:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 10:42:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 10:42:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 10:42:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 10:42:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 10:42:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 10:42:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 10:42:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 10:42:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 10:42:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 10:42:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 10:42:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 10:42:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 10:42:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 10:42:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 10:42:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 10:42:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 10:42:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 10:42:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 10:42:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 10:42:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 10:42:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 10:42:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 10:42:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 10:42:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 10:42:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 10:42:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 10:42:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 10:42:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 10:42:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 10:42:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 10:42:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 10:42:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 10:42:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 10:42:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 10:42:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 10:42:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 10:42:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 10:42:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 10:42:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 10:42:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 10:42:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 10:42:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 10:42:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 10:42:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 10:42:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 10:42:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 10:42:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 10:42:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 10:42:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 10:42:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 10:42:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 10:42:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 10:42:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 10:42:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 10:42:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 10:42:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 10:42:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 10:42:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 10:42:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 10:42:20,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 10:42:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 10:42:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 10:42:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 10:42:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 10:42:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 10:42:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 10:42:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 10:42:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 10:42:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 10:42:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 10:42:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 10:42:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 10:42:20,488 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 10:42:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 10:42:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 10:42:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 10:42:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 10:42:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 10:42:20,489 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 10:42:20,490 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 10:42:20,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 10:42:20,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 10:42:20,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 10:42:21,601 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 10:42:21,601 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 10:42:21,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:42:21 BoogieIcfgContainer [2020-07-20 10:42:21,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 10:42:21,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 10:42:21,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 10:42:21,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 10:42:21,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 10:42:19" (1/3) ... [2020-07-20 10:42:21,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5567f2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:42:21, skipping insertion in model container [2020-07-20 10:42:21,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 10:42:20" (2/3) ... [2020-07-20 10:42:21,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5567f2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 10:42:21, skipping insertion in model container [2020-07-20 10:42:21,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 10:42:21" (3/3) ... [2020-07-20 10:42:21,615 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product44.cil.c [2020-07-20 10:42:21,625 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 10:42:21,633 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 10:42:21,648 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 10:42:21,673 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 10:42:21,673 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 10:42:21,673 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 10:42:21,673 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 10:42:21,674 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 10:42:21,674 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 10:42:21,674 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 10:42:21,674 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 10:42:21,697 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2020-07-20 10:42:21,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 10:42:21,707 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:21,708 INFO L422 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] [2020-07-20 10:42:21,709 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:21,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:21,715 INFO L82 PathProgramCache]: Analyzing trace with hash -374908160, now seen corresponding path program 1 times [2020-07-20 10:42:21,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:21,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78594994] [2020-07-20 10:42:21,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:21,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 10:42:21,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:22,023 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:22,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78594994] [2020-07-20 10:42:22,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:22,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 10:42:22,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905516961] [2020-07-20 10:42:22,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 10:42:22,032 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:22,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 10:42:22,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:42:22,052 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2020-07-20 10:42:22,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:22,099 INFO L93 Difference]: Finished difference Result 272 states and 333 transitions. [2020-07-20 10:42:22,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 10:42:22,101 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-20 10:42:22,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:22,121 INFO L225 Difference]: With dead ends: 272 [2020-07-20 10:42:22,122 INFO L226 Difference]: Without dead ends: 136 [2020-07-20 10:42:22,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 10:42:22,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-07-20 10:42:22,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2020-07-20 10:42:22,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-07-20 10:42:22,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 158 transitions. [2020-07-20 10:42:22,227 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 158 transitions. Word has length 52 [2020-07-20 10:42:22,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:22,228 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 158 transitions. [2020-07-20 10:42:22,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 10:42:22,228 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 158 transitions. [2020-07-20 10:42:22,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 10:42:22,232 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:22,232 INFO L422 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] [2020-07-20 10:42:22,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:22,447 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:22,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:22,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1199290513, now seen corresponding path program 1 times [2020-07-20 10:42:22,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:22,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1689250847] [2020-07-20 10:42:22,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:22,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 10:42:22,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:22,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:22,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1689250847] [2020-07-20 10:42:22,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:22,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:22,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977630377] [2020-07-20 10:42:22,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:22,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:22,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:22,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:22,717 INFO L87 Difference]: Start difference. First operand 136 states and 158 transitions. Second operand 3 states. [2020-07-20 10:42:22,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:22,741 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2020-07-20 10:42:22,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:22,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 10:42:22,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:22,744 INFO L225 Difference]: With dead ends: 208 [2020-07-20 10:42:22,744 INFO L226 Difference]: Without dead ends: 127 [2020-07-20 10:42:22,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:22,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-07-20 10:42:22,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-07-20 10:42:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-07-20 10:42:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2020-07-20 10:42:22,758 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 53 [2020-07-20 10:42:22,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:22,759 INFO L479 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2020-07-20 10:42:22,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2020-07-20 10:42:22,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 10:42:22,762 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:22,762 INFO L422 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] [2020-07-20 10:42:22,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:22,977 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:22,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:22,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1173909231, now seen corresponding path program 1 times [2020-07-20 10:42:22,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:22,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [964385062] [2020-07-20 10:42:22,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:23,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 10:42:23,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:23,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:23,194 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:23,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [964385062] [2020-07-20 10:42:23,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:23,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 10:42:23,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290178288] [2020-07-20 10:42:23,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 10:42:23,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:23,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 10:42:23,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:23,196 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 3 states. [2020-07-20 10:42:23,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:23,223 INFO L93 Difference]: Finished difference Result 329 states and 389 transitions. [2020-07-20 10:42:23,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 10:42:23,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-20 10:42:23,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:23,226 INFO L225 Difference]: With dead ends: 329 [2020-07-20 10:42:23,227 INFO L226 Difference]: Without dead ends: 226 [2020-07-20 10:42:23,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 10:42:23,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-20 10:42:23,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 214. [2020-07-20 10:42:23,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-07-20 10:42:23,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 251 transitions. [2020-07-20 10:42:23,252 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 251 transitions. Word has length 58 [2020-07-20 10:42:23,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:23,252 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 251 transitions. [2020-07-20 10:42:23,252 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 10:42:23,252 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 251 transitions. [2020-07-20 10:42:23,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 10:42:23,255 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:23,255 INFO L422 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] [2020-07-20 10:42:23,468 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:23,469 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:23,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:23,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1403187774, now seen corresponding path program 1 times [2020-07-20 10:42:23,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:23,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [783496674] [2020-07-20 10:42:23,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:23,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 10:42:23,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 10:42:23,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 10:42:23,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 10:42:23,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 10:42:23,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [783496674] [2020-07-20 10:42:23,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 10:42:23,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 10:42:23,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299231061] [2020-07-20 10:42:23,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 10:42:23,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 10:42:23,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 10:42:23,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 10:42:23,758 INFO L87 Difference]: Start difference. First operand 214 states and 251 transitions. Second operand 6 states. [2020-07-20 10:42:24,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 10:42:24,110 INFO L93 Difference]: Finished difference Result 579 states and 715 transitions. [2020-07-20 10:42:24,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 10:42:24,111 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 10:42:24,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 10:42:24,120 INFO L225 Difference]: With dead ends: 579 [2020-07-20 10:42:24,120 INFO L226 Difference]: Without dead ends: 389 [2020-07-20 10:42:24,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 10:42:24,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-07-20 10:42:24,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 385. [2020-07-20 10:42:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2020-07-20 10:42:24,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 464 transitions. [2020-07-20 10:42:24,167 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 464 transitions. Word has length 63 [2020-07-20 10:42:24,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 10:42:24,167 INFO L479 AbstractCegarLoop]: Abstraction has 385 states and 464 transitions. [2020-07-20 10:42:24,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 10:42:24,168 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 464 transitions. [2020-07-20 10:42:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 10:42:24,170 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 10:42:24,171 INFO L422 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] [2020-07-20 10:42:24,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:24,378 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 10:42:24,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 10:42:24,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1134068548, now seen corresponding path program 1 times [2020-07-20 10:42:24,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 10:42:24,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [344240405] [2020-07-20 10:42:24,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:24,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 10:42:24,733 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 10:42:24,953 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 10:42:24,953 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 10:42:25,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 10:42:25,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 10:42:25 BoogieIcfgContainer [2020-07-20 10:42:25,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 10:42:25,317 INFO L168 Benchmark]: Toolchain (without parser) took 5617.51 ms. Allocated memory was 137.9 MB in the beginning and 250.6 MB in the end (delta: 112.7 MB). Free memory was 101.7 MB in the beginning and 98.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 115.5 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,318 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,321 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.54 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 169.4 MB in the end (delta: -68.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,322 INFO L168 Benchmark]: Boogie Preprocessor took 83.50 ms. Allocated memory is still 202.4 MB. Free memory was 169.4 MB in the beginning and 165.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,323 INFO L168 Benchmark]: RCFGBuilder took 1188.69 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 165.2 MB in the beginning and 195.1 MB in the end (delta: -29.9 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,324 INFO L168 Benchmark]: TraceAbstraction took 3706.63 ms. Allocated memory was 234.4 MB in the beginning and 250.6 MB in the end (delta: 16.3 MB). Free memory was 195.1 MB in the beginning and 98.9 MB in the end (delta: 96.2 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. [2020-07-20 10:42:25,330 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 633.54 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 101.3 MB in the beginning and 169.4 MB in the end (delta: -68.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.50 ms. Allocated memory is still 202.4 MB. Free memory was 169.4 MB in the beginning and 165.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1188.69 ms. Allocated memory was 202.4 MB in the beginning and 234.4 MB in the end (delta: 32.0 MB). Free memory was 165.2 MB in the beginning and 195.1 MB in the end (delta: -29.9 MB). Peak memory consumption was 83.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3706.63 ms. Allocated memory was 234.4 MB in the beginning and 250.6 MB in the end (delta: 16.3 MB). Free memory was 195.1 MB in the beginning and 98.9 MB in the end (delta: 96.2 MB). Peak memory consumption was 112.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 318]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L185] int waterLevel = 1; [L186] int methaneLevelCritical = 0; [L492] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L693] int pumpRunning = 0; [L694] int systemActive = 1; VAL [\old(cleanupTimeShifts)=76, \old(head)=90, \old(head)=87, \old(methaneLevelCritical)=59, \old(pumpRunning)=78, \old(systemActive)=89, \old(waterLevel)=91, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=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] [L305] int retValue_acc ; [L308] retValue_acc = 1 [L309] 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] [L887] int splverifierCounter ; [L888] int tmp ; [L889] int tmp___0 ; [L890] int tmp___1 ; [L891] int tmp___2 ; [L894] 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] [L896] 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] [L898] 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] [L904] tmp = __VERIFIER_nondet_int() [L906] 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] [L908] 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] [L203] COND TRUE waterLevel < 2 [L204] 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] [L908] 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] [L914] tmp___0 = __VERIFIER_nondet_int() [L916] 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] [L924] tmp___2 = __VERIFIER_nondet_int() [L926] COND FALSE !(\read(tmp___2)) [L932] tmp___1 = __VERIFIER_nondet_int() [L934] 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=1, tmp___2=0, waterLevel=2] [L936] CALL stopSystem() 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] [L866] COND FALSE !(\read(pumpRunning)) 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] [L873] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L936] RET stopSystem() 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=0, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L943] 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=0, waterLevel=2] [L700] 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=0, waterLevel=2] [L707] COND FALSE !(\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=0, waterLevel=2] [L715] 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=0, waterLevel=2] [L149] int tmp ; [L150] int tmp___0 ; [L151] 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=0, waterLevel=2] [L155] 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=0, waterLevel=2] [L224] int retValue_acc ; [L227] retValue_acc = methaneLevelCritical [L228] 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=0, waterLevel=2] [L155] 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=0, waterLevel=2] [L155] tmp = isMethaneLevelCritical() [L157] 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=0, tmp=0, waterLevel=2] [L161] 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=0, waterLevel=2] [L256] int retValue_acc ; [L259] retValue_acc = waterLevel [L260] 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=0, waterLevel=2] [L161] 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=0, tmp=0, waterLevel=2] [L161] tmp___0 = getWaterLevel() [L163] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L165] 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=0, waterLevel=2] [L799] int retValue_acc ; [L802] retValue_acc = pumpRunning [L803] 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=0, waterLevel=2] [L165] 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=0, tmp=0, tmp___0=2, waterLevel=2] [L165] tmp___1 = isPumpRunning() [L167] 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=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L171] 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=0, waterLevel=2] [L318] __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=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 669 SDtfs, 204 SDslu, 762 SDs, 0 SdLazy, 94 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=385occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 23550 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2709 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...