/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 19:19:15,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 19:19:15,081 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 19:19:15,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 19:19:15,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 19:19:15,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 19:19:15,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 19:19:15,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 19:19:15,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 19:19:15,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 19:19:15,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 19:19:15,121 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 19:19:15,122 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 19:19:15,123 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 19:19:15,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 19:19:15,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 19:19:15,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 19:19:15,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 19:19:15,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 19:19:15,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 19:19:15,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 19:19:15,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 19:19:15,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 19:19:15,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 19:19:15,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 19:19:15,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 19:19:15,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 19:19:15,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 19:19:15,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 19:19:15,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 19:19:15,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 19:19:15,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 19:19:15,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 19:19:15,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 19:19:15,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 19:19:15,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 19:19:15,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 19:19:15,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 19:19:15,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 19:19:15,177 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 19:19:15,178 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 19:19:15,181 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 19:19:15,225 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 19:19:15,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 19:19:15,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 19:19:15,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 19:19:15,228 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 19:19:15,229 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 19:19:15,229 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 19:19:15,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 19:19:15,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 19:19:15,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 19:19:15,230 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 19:19:15,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 19:19:15,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 19:19:15,230 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 19:19:15,230 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 19:19:15,231 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 19:19:15,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 19:19:15,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 19:19:15,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 19:19:15,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 19:19:15,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 19:19:15,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 19:19:15,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 19:19:15,232 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 19:19:15,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 19:19:15,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 19:19:15,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 19:19:15,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 19:19:15,233 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 19:19:15,233 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 -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=HIGHLEXORDER; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=HIGHLEXORDER; [2020-08-18 19:19:15,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 19:19:15,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 19:19:15,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 19:19:15,618 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 19:19:15,618 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 19:19:15,620 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-08-18 19:19:15,689 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/533078727/b216b58d5f82413caa07cde2dd010a5f/FLAGa2ceddc32 [2020-08-18 19:19:16,193 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 19:19:16,193 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-08-18 19:19:16,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/533078727/b216b58d5f82413caa07cde2dd010a5f/FLAGa2ceddc32 [2020-08-18 19:19:16,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/533078727/b216b58d5f82413caa07cde2dd010a5f [2020-08-18 19:19:16,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 19:19:16,517 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 19:19:16,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 19:19:16,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 19:19:16,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 19:19:16,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:19:16" (1/1) ... [2020-08-18 19:19:16,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:16, skipping insertion in model container [2020-08-18 19:19:16,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 07:19:16" (1/1) ... [2020-08-18 19:19:16,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 19:19:16,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 19:19:16,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:19:16,997 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 19:19:17,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 19:19:17,257 INFO L208 MainTranslator]: Completed translation [2020-08-18 19:19:17,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:17 WrapperNode [2020-08-18 19:19:17,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 19:19:17,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 19:19:17,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 19:19:17,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 19:19:17,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:17" (1/1) ... [2020-08-18 19:19:17,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:17" (1/1) ... [2020-08-18 19:19:17,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:17" (1/1) ... [2020-08-18 19:19:17,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:17" (1/1) ... [2020-08-18 19:19:17,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:17" (1/1) ... [2020-08-18 19:19:17,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:17" (1/1) ... [2020-08-18 19:19:17,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:17" (1/1) ... [2020-08-18 19:19:17,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 19:19:17,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 19:19:17,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 19:19:17,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 19:19:17,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 19:19:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 19:19:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 19:19:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 19:19:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 19:19:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 19:19:17,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 19:19:17,418 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 19:19:17,420 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 19:19:17,420 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 19:19:17,420 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 19:19:17,421 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 19:19:17,422 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 19:19:17,422 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 19:19:17,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 19:19:17,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 19:19:17,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 19:19:17,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 19:19:17,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 19:19:17,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 19:19:17,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-18 19:19:17,425 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 19:19:17,426 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 19:19:17,426 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 19:19:17,426 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 19:19:17,426 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 19:19:17,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 19:19:17,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 19:19:17,430 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 19:19:17,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-18 19:19:17,430 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 19:19:17,431 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 19:19:17,431 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 19:19:17,432 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 19:19:17,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 19:19:17,432 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 19:19:17,432 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 19:19:17,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 19:19:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 19:19:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 19:19:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 19:19:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 19:19:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 19:19:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 19:19:17,433 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 19:19:17,434 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 19:19:17,434 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 19:19:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 19:19:17,435 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 19:19:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 19:19:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 19:19:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 19:19:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 19:19:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 19:19:17,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 19:19:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 19:19:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 19:19:17,437 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 19:19:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 19:19:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 19:19:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 19:19:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 19:19:17,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 19:19:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 19:19:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 19:19:17,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 19:19:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 19:19:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 19:19:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 19:19:17,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 19:19:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 19:19:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 19:19:17,441 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 19:19:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 19:19:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 19:19:17,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-18 19:19:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 19:19:17,443 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 19:19:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 19:19:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 19:19:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-18 19:19:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 19:19:17,444 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 19:19:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 19:19:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 19:19:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 19:19:17,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 19:19:18,495 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 19:19:18,496 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 19:19:18,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:19:18 BoogieIcfgContainer [2020-08-18 19:19:18,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 19:19:18,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 19:19:18,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 19:19:18,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 19:19:18,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 07:19:16" (1/3) ... [2020-08-18 19:19:18,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188d3826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:19:18, skipping insertion in model container [2020-08-18 19:19:18,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 07:19:17" (2/3) ... [2020-08-18 19:19:18,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188d3826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 07:19:18, skipping insertion in model container [2020-08-18 19:19:18,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 07:19:18" (3/3) ... [2020-08-18 19:19:18,514 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-08-18 19:19:18,524 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 19:19:18,535 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 19:19:18,546 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 19:19:18,567 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 19:19:18,568 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 19:19:18,568 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 19:19:18,568 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 19:19:18,568 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 19:19:18,568 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 19:19:18,568 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 19:19:18,568 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 19:19:18,590 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-08-18 19:19:18,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-18 19:19:18,601 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:19:18,602 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] [2020-08-18 19:19:18,602 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:19:18,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:19:18,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1046284201, now seen corresponding path program 1 times [2020-08-18 19:19:18,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:19:18,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323614635] [2020-08-18 19:19:18,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:19:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:19,268 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 19:19:19,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:19:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:19,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:19:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:19,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:19:19,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:19,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:19:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:19,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:19:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:19,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 19:19:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:19,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 19:19:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:19,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-18 19:19:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:19,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:19:19,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323614635] [2020-08-18 19:19:19,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:19:19,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 19:19:19,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476109902] [2020-08-18 19:19:19,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 19:19:19,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:19:19,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 19:19:19,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 19:19:19,417 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 3 states. [2020-08-18 19:19:20,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:19:20,450 INFO L93 Difference]: Finished difference Result 263 states and 350 transitions. [2020-08-18 19:19:20,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 19:19:20,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-18 19:19:20,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:19:20,467 INFO L225 Difference]: With dead ends: 263 [2020-08-18 19:19:20,467 INFO L226 Difference]: Without dead ends: 143 [2020-08-18 19:19:20,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 19:19:20,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-08-18 19:19:20,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 111. [2020-08-18 19:19:20,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-08-18 19:19:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2020-08-18 19:19:20,572 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 52 [2020-08-18 19:19:20,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:19:20,573 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2020-08-18 19:19:20,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 19:19:20,573 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2020-08-18 19:19:20,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-18 19:19:20,577 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:19:20,577 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] [2020-08-18 19:19:20,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 19:19:20,577 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:19:20,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:19:20,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1021968907, now seen corresponding path program 1 times [2020-08-18 19:19:20,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:19:20,579 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [790071074] [2020-08-18 19:19:20,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:19:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:20,961 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 19:19:20,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:19:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:20,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:19:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:20,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:19:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:20,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:19:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:20,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:19:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:20,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 19:19:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:20,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 19:19:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:20,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-18 19:19:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:21,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:19:21,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [790071074] [2020-08-18 19:19:21,007 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:19:21,007 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 19:19:21,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707557749] [2020-08-18 19:19:21,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 19:19:21,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:19:21,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 19:19:21,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 19:19:21,010 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand 4 states. [2020-08-18 19:19:21,452 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 19:19:22,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:19:22,162 INFO L93 Difference]: Finished difference Result 190 states and 233 transitions. [2020-08-18 19:19:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 19:19:22,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-18 19:19:22,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:19:22,168 INFO L225 Difference]: With dead ends: 190 [2020-08-18 19:19:22,168 INFO L226 Difference]: Without dead ends: 127 [2020-08-18 19:19:22,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 19:19:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-08-18 19:19:22,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 102. [2020-08-18 19:19:22,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-08-18 19:19:22,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2020-08-18 19:19:22,206 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 53 [2020-08-18 19:19:22,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:19:22,207 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2020-08-18 19:19:22,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 19:19:22,207 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2020-08-18 19:19:22,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-18 19:19:22,209 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:19:22,210 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] [2020-08-18 19:19:22,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 19:19:22,210 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:19:22,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:19:22,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1636314529, now seen corresponding path program 1 times [2020-08-18 19:19:22,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:19:22,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [238065277] [2020-08-18 19:19:22,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:19:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:22,537 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 19:19:22,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:19:22,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:22,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:19:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:22,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:19:22,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:22,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:19:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:22,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:19:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:22,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 19:19:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:22,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 19:19:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:22,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 19:19:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:22,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:19:22,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [238065277] [2020-08-18 19:19:22,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:19:22,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 19:19:22,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003489188] [2020-08-18 19:19:22,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 19:19:22,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:19:22,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 19:19:22,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 19:19:22,688 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand 8 states. [2020-08-18 19:19:23,094 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 19:19:23,398 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:23,663 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:23,905 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:24,646 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 19:19:25,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:19:25,995 INFO L93 Difference]: Finished difference Result 360 states and 450 transitions. [2020-08-18 19:19:25,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 19:19:25,996 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-18 19:19:25,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:19:26,003 INFO L225 Difference]: With dead ends: 360 [2020-08-18 19:19:26,003 INFO L226 Difference]: Without dead ends: 282 [2020-08-18 19:19:26,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-18 19:19:26,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-08-18 19:19:26,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 228. [2020-08-18 19:19:26,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-08-18 19:19:26,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2020-08-18 19:19:26,071 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 57 [2020-08-18 19:19:26,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:19:26,072 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2020-08-18 19:19:26,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 19:19:26,072 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2020-08-18 19:19:26,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-08-18 19:19:26,074 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:19:26,075 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] [2020-08-18 19:19:26,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 19:19:26,075 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:19:26,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:19:26,076 INFO L82 PathProgramCache]: Analyzing trace with hash -384943424, now seen corresponding path program 1 times [2020-08-18 19:19:26,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:19:26,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634888298] [2020-08-18 19:19:26,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:19:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,458 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 19:19:26,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 19:19:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 19:19:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 19:19:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 19:19:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 19:19:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 19:19:26,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 19:19:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-18 19:19:26,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 19:19:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 19:19:26,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 19:19:26,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634888298] [2020-08-18 19:19:26,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 19:19:26,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 19:19:26,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804827183] [2020-08-18 19:19:26,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 19:19:26,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 19:19:26,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 19:19:26,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 19:19:26,554 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand 8 states. [2020-08-18 19:19:26,956 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 19:19:28,236 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:28,524 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:28,794 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 19:19:29,075 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 19:19:29,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 19:19:29,625 INFO L93 Difference]: Finished difference Result 696 states and 923 transitions. [2020-08-18 19:19:29,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-18 19:19:29,625 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-08-18 19:19:29,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 19:19:29,632 INFO L225 Difference]: With dead ends: 696 [2020-08-18 19:19:29,632 INFO L226 Difference]: Without dead ends: 492 [2020-08-18 19:19:29,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-18 19:19:29,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-08-18 19:19:29,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 429. [2020-08-18 19:19:29,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2020-08-18 19:19:29,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 535 transitions. [2020-08-18 19:19:29,749 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 535 transitions. Word has length 63 [2020-08-18 19:19:29,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 19:19:29,750 INFO L479 AbstractCegarLoop]: Abstraction has 429 states and 535 transitions. [2020-08-18 19:19:29,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 19:19:29,750 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 535 transitions. [2020-08-18 19:19:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-18 19:19:29,754 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 19:19:29,754 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] [2020-08-18 19:19:29,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 19:19:29,754 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 19:19:29,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 19:19:29,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1334484666, now seen corresponding path program 1 times [2020-08-18 19:19:29,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 19:19:29,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552310396] [2020-08-18 19:19:29,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 19:19:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 19:19:29,815 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 19:19:29,816 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 19:19:29,820 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 19:19:29,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 07:19:29 BoogieIcfgContainer [2020-08-18 19:19:29,842 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 19:19:29,844 INFO L168 Benchmark]: Toolchain (without parser) took 13326.69 ms. Allocated memory was 138.4 MB in the beginning and 422.6 MB in the end (delta: 284.2 MB). Free memory was 100.9 MB in the beginning and 179.4 MB in the end (delta: -78.4 MB). Peak memory consumption was 205.7 MB. Max. memory is 7.1 GB. [2020-08-18 19:19:29,845 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 19:19:29,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 737.74 ms. Allocated memory was 138.4 MB in the beginning and 199.8 MB in the end (delta: 61.3 MB). Free memory was 100.7 MB in the beginning and 170.2 MB in the end (delta: -69.5 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2020-08-18 19:19:29,847 INFO L168 Benchmark]: Boogie Preprocessor took 85.30 ms. Allocated memory is still 199.8 MB. Free memory was 170.2 MB in the beginning and 166.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-08-18 19:19:29,847 INFO L168 Benchmark]: RCFGBuilder took 1160.73 ms. Allocated memory was 199.8 MB in the beginning and 231.7 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 198.2 MB in the end (delta: -32.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2020-08-18 19:19:29,848 INFO L168 Benchmark]: TraceAbstraction took 11336.20 ms. Allocated memory was 231.7 MB in the beginning and 422.6 MB in the end (delta: 190.8 MB). Free memory was 198.2 MB in the beginning and 179.4 MB in the end (delta: 18.8 MB). Peak memory consumption was 209.7 MB. Max. memory is 7.1 GB. [2020-08-18 19:19:29,852 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 737.74 ms. Allocated memory was 138.4 MB in the beginning and 199.8 MB in the end (delta: 61.3 MB). Free memory was 100.7 MB in the beginning and 170.2 MB in the end (delta: -69.5 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.30 ms. Allocated memory is still 199.8 MB. Free memory was 170.2 MB in the beginning and 166.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1160.73 ms. Allocated memory was 199.8 MB in the beginning and 231.7 MB in the end (delta: 32.0 MB). Free memory was 166.0 MB in the beginning and 198.2 MB in the end (delta: -32.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11336.20 ms. Allocated memory was 231.7 MB in the beginning and 422.6 MB in the end (delta: 190.8 MB). Free memory was 198.2 MB in the beginning and 179.4 MB in the end (delta: 18.8 MB). Peak memory consumption was 209.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L165] int retValue_acc ; [L166] int tmp ; [L170] FCALL select_helpers() [L171] FCALL select_features() [L172] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L172] RET, EXPR valid_product() [L172] tmp = valid_product() [L174] COND TRUE \read(tmp) [L176] FCALL setup() [L177] CALL runTest() [L159] CALL test() [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) [L766] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L766] RET waterRise() [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND FALSE !(\read(tmp___0)) [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND FALSE !(\read(tmp___2)) [L788] tmp___1 = __VERIFIER_nondet_int() [L790] COND TRUE \read(tmp___1) [L792] CALL stopSystem() [L732] COND FALSE !(\read(pumpRunning)) [L739] systemActive = 0 [L792] RET stopSystem() [L799] CALL timeShift() [L603] COND FALSE !(\read(pumpRunning)) [L610] COND FALSE !(\read(systemActive)) [L618] CALL __utac_acc__Specification3_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L564] CALL, EXPR isMethaneLevelCritical() [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] return (retValue_acc); [L564] RET, EXPR isMethaneLevelCritical() [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L570] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L570] RET, EXPR getWaterLevel() [L570] tmp___0 = getWaterLevel() [L572] COND TRUE tmp___0 == 2 [L574] CALL, EXPR isPumpRunning() [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] return (retValue_acc); [L574] RET, EXPR isPumpRunning() [L574] tmp___1 = isPumpRunning() [L576] COND FALSE !(\read(tmp___1)) [L580] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 213 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 416 SDtfs, 636 SDslu, 311 SDs, 0 SdLazy, 1606 SolverSat, 407 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred 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: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 174 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 61524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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...