/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 false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 21:38:06,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 21:38:06,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 21:38:06,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 21:38:06,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 21:38:06,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 21:38:06,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 21:38:06,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 21:38:06,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 21:38:06,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 21:38:06,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 21:38:06,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 21:38:06,926 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 21:38:06,928 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 21:38:06,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 21:38:06,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 21:38:06,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 21:38:06,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 21:38:06,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 21:38:06,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 21:38:06,946 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 21:38:06,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 21:38:06,948 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 21:38:06,949 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 21:38:06,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 21:38:06,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 21:38:06,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 21:38:06,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 21:38:06,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 21:38:06,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 21:38:06,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 21:38:06,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 21:38:06,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 21:38:06,974 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 21:38:06,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 21:38:06,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 21:38:06,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 21:38:06,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 21:38:06,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 21:38:06,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 21:38:06,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 21:38:06,982 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 [2020-08-27 21:38:07,023 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 21:38:07,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 21:38:07,025 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 21:38:07,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 21:38:07,025 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 21:38:07,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 21:38:07,026 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 21:38:07,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 21:38:07,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 21:38:07,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 21:38:07,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 21:38:07,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 21:38:07,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 21:38:07,028 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 21:38:07,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 21:38:07,029 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 21:38:07,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 21:38:07,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 21:38:07,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 21:38:07,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 21:38:07,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 21:38:07,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 21:38:07,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 21:38:07,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 21:38:07,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 21:38:07,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 21:38:07,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 21:38:07,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 21:38:07,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 21:38:07,032 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 -> false [2020-08-27 21:38:07,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 21:38:07,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 21:38:07,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 21:38:07,491 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 21:38:07,492 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 21:38:07,493 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-08-27 21:38:07,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c415731cb/1e6d72f33c7045f1914ac046f5b97358/FLAG6094ce599 [2020-08-27 21:38:08,172 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 21:38:08,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-08-27 21:38:08,185 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c415731cb/1e6d72f33c7045f1914ac046f5b97358/FLAG6094ce599 [2020-08-27 21:38:08,386 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c415731cb/1e6d72f33c7045f1914ac046f5b97358 [2020-08-27 21:38:08,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 21:38:08,401 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 21:38:08,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 21:38:08,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 21:38:08,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 21:38:08,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:38:08" (1/1) ... [2020-08-27 21:38:08,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfafcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:08, skipping insertion in model container [2020-08-27 21:38:08,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:38:08" (1/1) ... [2020-08-27 21:38:08,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 21:38:08,471 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 21:38:08,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:38:08,944 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 21:38:09,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:38:09,073 INFO L208 MainTranslator]: Completed translation [2020-08-27 21:38:09,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:09 WrapperNode [2020-08-27 21:38:09,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 21:38:09,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 21:38:09,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 21:38:09,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 21:38:09,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:09" (1/1) ... [2020-08-27 21:38:09,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:09" (1/1) ... [2020-08-27 21:38:09,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:09" (1/1) ... [2020-08-27 21:38:09,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:09" (1/1) ... [2020-08-27 21:38:09,146 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:09" (1/1) ... [2020-08-27 21:38:09,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:09" (1/1) ... [2020-08-27 21:38:09,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:09" (1/1) ... [2020-08-27 21:38:09,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 21:38:09,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 21:38:09,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 21:38:09,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 21:38:09,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:09" (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 [2020-08-27 21:38:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 21:38:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 21:38:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-27 21:38:09,266 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-27 21:38:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-27 21:38:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-27 21:38:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-27 21:38:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-27 21:38:09,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-27 21:38:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-27 21:38:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-27 21:38:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-27 21:38:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-27 21:38:09,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-27 21:38:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-27 21:38:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-27 21:38:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-27 21:38:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-27 21:38:09,269 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 21:38:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-27 21:38:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-27 21:38:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-27 21:38:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-08-27 21:38:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-27 21:38:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-27 21:38:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-27 21:38:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-27 21:38:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-27 21:38:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-27 21:38:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-27 21:38:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-27 21:38:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-27 21:38:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-27 21:38:09,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-27 21:38:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-27 21:38:09,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-27 21:38:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 21:38:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-27 21:38:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-27 21:38:09,273 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-27 21:38:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-27 21:38:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-27 21:38:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-27 21:38:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-27 21:38:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-27 21:38:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-27 21:38:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-27 21:38:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-27 21:38:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-27 21:38:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-27 21:38:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-27 21:38:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-27 21:38:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-27 21:38:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-27 21:38:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-27 21:38:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-27 21:38:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-27 21:38:09,276 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-27 21:38:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 21:38:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-27 21:38:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-27 21:38:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-27 21:38:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-27 21:38:09,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-27 21:38:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-27 21:38:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-27 21:38:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-08-27 21:38:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-27 21:38:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-27 21:38:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-27 21:38:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-27 21:38:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-27 21:38:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-27 21:38:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-27 21:38:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-27 21:38:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-27 21:38:09,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-27 21:38:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-27 21:38:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-27 21:38:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-27 21:38:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-27 21:38:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-27 21:38:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-27 21:38:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 21:38:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-27 21:38:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 21:38:10,420 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 21:38:10,420 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-27 21:38:10,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:38:10 BoogieIcfgContainer [2020-08-27 21:38:10,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 21:38:10,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 21:38:10,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 21:38:10,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 21:38:10,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 09:38:08" (1/3) ... [2020-08-27 21:38:10,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8e5c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:38:10, skipping insertion in model container [2020-08-27 21:38:10,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:38:09" (2/3) ... [2020-08-27 21:38:10,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8e5c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:38:10, skipping insertion in model container [2020-08-27 21:38:10,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:38:10" (3/3) ... [2020-08-27 21:38:10,436 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-08-27 21:38:10,447 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 21:38:10,457 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 21:38:10,480 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 21:38:10,510 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 21:38:10,510 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 21:38:10,510 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 21:38:10,511 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 21:38:10,511 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 21:38:10,511 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 21:38:10,511 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 21:38:10,511 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 21:38:10,543 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-08-27 21:38:10,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-27 21:38:10,559 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:38:10,560 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] [2020-08-27 21:38:10,561 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:38:10,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:38:10,567 INFO L82 PathProgramCache]: Analyzing trace with hash 269315160, now seen corresponding path program 1 times [2020-08-27 21:38:10,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:38:10,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620239376] [2020-08-27 21:38:10,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:38:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:11,218 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:38:11,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:38:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:11,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:38:11,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:11,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:38:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:11,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:38:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:11,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:38:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:11,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-27 21:38:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:11,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-27 21:38:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:11,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-27 21:38:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:38:11,343 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620239376] [2020-08-27 21:38:11,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:38:11,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-27 21:38:11,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471777999] [2020-08-27 21:38:11,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-27 21:38:11,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:38:11,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-27 21:38:11,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-27 21:38:11,382 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 3 states. [2020-08-27 21:38:12,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:38:12,367 INFO L93 Difference]: Finished difference Result 249 states and 331 transitions. [2020-08-27 21:38:12,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-27 21:38:12,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-08-27 21:38:12,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:38:12,391 INFO L225 Difference]: With dead ends: 249 [2020-08-27 21:38:12,392 INFO L226 Difference]: Without dead ends: 135 [2020-08-27 21:38:12,400 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-27 21:38:12,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-08-27 21:38:12,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-08-27 21:38:12,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-08-27 21:38:12,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2020-08-27 21:38:12,539 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 52 [2020-08-27 21:38:12,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:38:12,540 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2020-08-27 21:38:12,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-27 21:38:12,540 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2020-08-27 21:38:12,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-08-27 21:38:12,544 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:38:12,544 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] [2020-08-27 21:38:12,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 21:38:12,544 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:38:12,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:38:12,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1813296693, now seen corresponding path program 1 times [2020-08-27 21:38:12,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:38:12,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1799856821] [2020-08-27 21:38:12,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:38:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:12,896 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:38:12,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:38:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:12,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:38:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:12,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:38:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:12,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:38:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:12,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:38:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:12,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-27 21:38:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:12,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-27 21:38:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:12,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-27 21:38:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:12,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:38:12,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1799856821] [2020-08-27 21:38:12,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:38:12,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-27 21:38:12,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16235577] [2020-08-27 21:38:12,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-27 21:38:12,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:38:12,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-27 21:38:12,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-27 21:38:12,958 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 4 states. [2020-08-27 21:38:13,394 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-27 21:38:13,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:38:13,988 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2020-08-27 21:38:13,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-27 21:38:13,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-08-27 21:38:13,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:38:13,996 INFO L225 Difference]: With dead ends: 182 [2020-08-27 21:38:13,997 INFO L226 Difference]: Without dead ends: 119 [2020-08-27 21:38:13,998 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 [2020-08-27 21:38:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-08-27 21:38:14,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-08-27 21:38:14,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-08-27 21:38:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-08-27 21:38:14,040 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 53 [2020-08-27 21:38:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:38:14,040 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-08-27 21:38:14,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-27 21:38:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-08-27 21:38:14,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-27 21:38:14,051 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:38:14,051 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] [2020-08-27 21:38:14,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-27 21:38:14,051 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:38:14,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:38:14,052 INFO L82 PathProgramCache]: Analyzing trace with hash -2099874592, now seen corresponding path program 1 times [2020-08-27 21:38:14,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:38:14,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073159629] [2020-08-27 21:38:14,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:38:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:14,491 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:38:14,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:38:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:14,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:38:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:14,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:38:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:14,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:38:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:14,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:38:14,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:14,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-27 21:38:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:14,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-27 21:38:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:14,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 21:38:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:14,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:38:14,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073159629] [2020-08-27 21:38:14,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:38:14,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-27 21:38:14,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600523455] [2020-08-27 21:38:14,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:38:14,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:38:14,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:38:14,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:38:14,643 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 8 states. [2020-08-27 21:38:15,047 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:38:15,408 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:38:15,713 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:38:16,023 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:38:16,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:38:16,960 INFO L93 Difference]: Finished difference Result 191 states and 236 transitions. [2020-08-27 21:38:16,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-27 21:38:16,961 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-08-27 21:38:16,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:38:16,963 INFO L225 Difference]: With dead ends: 191 [2020-08-27 21:38:16,963 INFO L226 Difference]: Without dead ends: 119 [2020-08-27 21:38:16,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-27 21:38:16,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-08-27 21:38:17,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-08-27 21:38:17,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-08-27 21:38:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-08-27 21:38:17,011 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 57 [2020-08-27 21:38:17,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:38:17,012 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-08-27 21:38:17,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:38:17,012 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-08-27 21:38:17,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-08-27 21:38:17,013 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:38:17,014 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] [2020-08-27 21:38:17,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-27 21:38:17,014 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:38:17,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:38:17,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1251058736, now seen corresponding path program 1 times [2020-08-27 21:38:17,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:38:17,015 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114964608] [2020-08-27 21:38:17,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:38:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,397 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:38:17,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:38:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:38:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:38:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:38:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:38:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-27 21:38:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-27 21:38:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-27 21:38:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-27 21:38:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-08-27 21:38:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:38:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:38:17,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114964608] [2020-08-27 21:38:17,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:38:17,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-27 21:38:17,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384353685] [2020-08-27 21:38:17,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:38:17,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:38:17,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:38:17,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:38:17,515 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 8 states. [2020-08-27 21:38:17,899 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:38:19,214 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:38:19,558 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:38:19,906 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:38:20,313 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:38:20,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:38:20,680 INFO L93 Difference]: Finished difference Result 284 states and 375 transitions. [2020-08-27 21:38:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-27 21:38:20,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-08-27 21:38:20,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:38:20,685 INFO L225 Difference]: With dead ends: 284 [2020-08-27 21:38:20,685 INFO L226 Difference]: Without dead ends: 212 [2020-08-27 21:38:20,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-08-27 21:38:20,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-08-27 21:38:20,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 166. [2020-08-27 21:38:20,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-08-27 21:38:20,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 197 transitions. [2020-08-27 21:38:20,737 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 197 transitions. Word has length 65 [2020-08-27 21:38:20,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:38:20,737 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 197 transitions. [2020-08-27 21:38:20,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:38:20,738 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 197 transitions. [2020-08-27 21:38:20,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-27 21:38:20,739 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:38:20,740 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, 1, 1] [2020-08-27 21:38:20,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-27 21:38:20,740 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:38:20,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:38:20,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1559260886, now seen corresponding path program 1 times [2020-08-27 21:38:20,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:38:20,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618245086] [2020-08-27 21:38:20,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:38:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-27 21:38:20,817 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-27 21:38:20,818 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-27 21:38:20,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-27 21:38:20,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 09:38:20 BoogieIcfgContainer [2020-08-27 21:38:20,847 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-27 21:38:20,849 INFO L168 Benchmark]: Toolchain (without parser) took 12448.47 ms. Allocated memory was 140.0 MB in the beginning and 414.7 MB in the end (delta: 274.7 MB). Free memory was 102.1 MB in the beginning and 139.4 MB in the end (delta: -37.3 MB). Peak memory consumption was 237.4 MB. Max. memory is 7.1 GB. [2020-08-27 21:38:20,850 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-27 21:38:20,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.39 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 172.6 MB in the end (delta: -70.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-08-27 21:38:20,851 INFO L168 Benchmark]: Boogie Preprocessor took 95.81 ms. Allocated memory is still 203.4 MB. Free memory was 172.6 MB in the beginning and 168.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-27 21:38:20,852 INFO L168 Benchmark]: RCFGBuilder took 1255.54 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 168.6 MB in the beginning and 202.6 MB in the end (delta: -34.1 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-08-27 21:38:20,853 INFO L168 Benchmark]: TraceAbstraction took 10419.48 ms. Allocated memory was 237.5 MB in the beginning and 414.7 MB in the end (delta: 177.2 MB). Free memory was 201.2 MB in the beginning and 139.4 MB in the end (delta: 61.7 MB). Peak memory consumption was 238.9 MB. Max. memory is 7.1 GB. [2020-08-27 21:38:20,858 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 671.39 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 172.6 MB in the end (delta: -70.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 95.81 ms. Allocated memory is still 203.4 MB. Free memory was 172.6 MB in the beginning and 168.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1255.54 ms. Allocated memory was 203.4 MB in the beginning and 237.5 MB in the end (delta: 34.1 MB). Free memory was 168.6 MB in the beginning and 202.6 MB in the end (delta: -34.1 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10419.48 ms. Allocated memory was 237.5 MB in the beginning and 414.7 MB in the end (delta: 177.2 MB). Free memory was 201.2 MB in the beginning and 139.4 MB in the end (delta: 61.7 MB). Peak memory consumption was 238.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L173] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L155] int retValue_acc ; [L158] retValue_acc = 1 [L159] return (retValue_acc); [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L243] CALL test() [L461] int splverifierCounter ; [L462] int tmp ; [L463] int tmp___0 ; [L464] int tmp___1 ; [L465] int tmp___2 ; [L468] splverifierCounter = 0 [L470] COND TRUE 1 [L472] COND TRUE splverifierCounter < 4 [L478] tmp = __VERIFIER_nondet_int() [L480] COND TRUE \read(tmp) [L482] CALL waterRise() [L64] COND TRUE waterLevel < 2 [L65] waterLevel = waterLevel + 1 [L482] RET waterRise() [L488] tmp___0 = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp___0)) [L498] tmp___2 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___2) [L513] CALL timeShift() [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L292] CALL processEnvironment() [L312] int tmp ; [L315] COND FALSE !(\read(pumpRunning)) [L330] FCALL processEnvironment__wrappee__methaneQuery() [L292] RET processEnvironment() [L298] CALL __utac_acc__Specification3_spec__1() [L427] int tmp ; [L428] int tmp___0 ; [L429] int tmp___1 ; [L433] CALL, EXPR isMethaneLevelCritical() [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L433] RET, EXPR isMethaneLevelCritical() [L433] tmp = isMethaneLevelCritical() [L435] COND FALSE !(\read(tmp)) [L439] CALL, EXPR getWaterLevel() [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L439] RET, EXPR getWaterLevel() [L439] tmp___0 = getWaterLevel() [L441] COND TRUE tmp___0 == 2 [L443] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L443] RET, EXPR isPumpRunning() [L443] tmp___1 = isPumpRunning() [L445] COND FALSE !(\read(tmp___1)) [L449] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 367 SDtfs, 528 SDslu, 217 SDs, 0 SdLazy, 1192 SolverSat, 330 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred 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, 122 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 61914 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...