/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 02:53:02,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 02:53:02,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 02:53:02,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 02:53:02,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 02:53:02,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 02:53:02,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 02:53:02,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 02:53:02,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 02:53:02,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 02:53:02,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 02:53:02,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 02:53:02,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 02:53:02,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 02:53:02,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 02:53:02,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 02:53:02,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 02:53:02,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 02:53:02,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 02:53:02,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 02:53:02,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 02:53:02,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 02:53:02,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 02:53:02,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 02:53:02,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 02:53:02,971 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 02:53:02,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 02:53:02,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 02:53:02,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 02:53:02,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 02:53:02,976 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 02:53:02,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 02:53:02,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 02:53:02,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 02:53:02,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 02:53:02,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 02:53:02,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 02:53:02,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 02:53:02,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 02:53:02,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 02:53:02,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 02:53:02,990 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 [2020-08-22 02:53:03,035 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 02:53:03,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 02:53:03,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 02:53:03,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 02:53:03,037 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 02:53:03,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 02:53:03,038 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 02:53:03,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 02:53:03,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 02:53:03,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 02:53:03,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 02:53:03,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 02:53:03,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 02:53:03,040 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 02:53:03,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 02:53:03,041 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 02:53:03,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 02:53:03,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 02:53:03,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 02:53:03,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 02:53:03,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 02:53:03,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 02:53:03,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 02:53:03,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 02:53:03,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 02:53:03,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 02:53:03,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 02:53:03,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 02:53:03,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 02:53:03,044 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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-08-22 02:53:03,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 02:53:03,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 02:53:03,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 02:53:03,413 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 02:53:03,413 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 02:53:03,414 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-08-22 02:53:03,481 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d218c063/d4c83611ee0549628d6fb9d0f3a307ed/FLAG962e12ee5 [2020-08-22 02:53:04,067 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 02:53:04,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_productSimulator.cil.c [2020-08-22 02:53:04,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d218c063/d4c83611ee0549628d6fb9d0f3a307ed/FLAG962e12ee5 [2020-08-22 02:53:04,266 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6d218c063/d4c83611ee0549628d6fb9d0f3a307ed [2020-08-22 02:53:04,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 02:53:04,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 02:53:04,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 02:53:04,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 02:53:04,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 02:53:04,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:53:04" (1/1) ... [2020-08-22 02:53:04,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21046f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04, skipping insertion in model container [2020-08-22 02:53:04,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:53:04" (1/1) ... [2020-08-22 02:53:04,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 02:53:04,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 02:53:04,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:53:04,861 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 02:53:04,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 02:53:04,980 INFO L208 MainTranslator]: Completed translation [2020-08-22 02:53:04,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04 WrapperNode [2020-08-22 02:53:04,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 02:53:04,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 02:53:04,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 02:53:04,982 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 02:53:04,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04" (1/1) ... [2020-08-22 02:53:04,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04" (1/1) ... [2020-08-22 02:53:05,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04" (1/1) ... [2020-08-22 02:53:05,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04" (1/1) ... [2020-08-22 02:53:05,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04" (1/1) ... [2020-08-22 02:53:05,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04" (1/1) ... [2020-08-22 02:53:05,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04" (1/1) ... [2020-08-22 02:53:05,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 02:53:05,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 02:53:05,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 02:53:05,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 02:53:05,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04" (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 [2020-08-22 02:53:05,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 02:53:05,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 02:53:05,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 02:53:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 02:53:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 02:53:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 02:53:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 02:53:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 02:53:05,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 02:53:05,145 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 02:53:05,145 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 02:53:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 02:53:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 02:53:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 02:53:05,146 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 02:53:05,147 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 02:53:05,147 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2020-08-22 02:53:05,147 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2020-08-22 02:53:05,147 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2020-08-22 02:53:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2020-08-22 02:53:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2020-08-22 02:53:05,148 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2020-08-22 02:53:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 02:53:05,149 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2020-08-22 02:53:05,150 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2020-08-22 02:53:05,151 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 02:53:05,151 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 02:53:05,151 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 02:53:05,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 02:53:05,152 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 02:53:05,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 02:53:05,152 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 02:53:05,152 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 02:53:05,152 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 02:53:05,152 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 02:53:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 02:53:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 02:53:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 02:53:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 02:53:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 02:53:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 02:53:05,153 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 02:53:05,154 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 02:53:05,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 02:53:05,154 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 02:53:05,154 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 02:53:05,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 02:53:05,154 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 02:53:05,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 02:53:05,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 02:53:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 02:53:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 02:53:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 02:53:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 02:53:05,156 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 02:53:05,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 02:53:05,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 02:53:05,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 02:53:05,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 02:53:05,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 02:53:05,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 02:53:05,157 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 02:53:05,157 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 02:53:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 02:53:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 02:53:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 02:53:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 02:53:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 02:53:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 02:53:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 02:53:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 02:53:05,158 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 02:53:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 02:53:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 02:53:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 02:53:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 02:53:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 02:53:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 02:53:05,159 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 02:53:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 02:53:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 02:53:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 02:53:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 02:53:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 02:53:05,160 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 02:53:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 02:53:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 02:53:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 02:53:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 02:53:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 02:53:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 02:53:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 02:53:05,161 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 02:53:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2020-08-22 02:53:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 02:53:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2020-08-22 02:53:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2020-08-22 02:53:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 02:53:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2020-08-22 02:53:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2020-08-22 02:53:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 02:53:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2020-08-22 02:53:05,162 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2020-08-22 02:53:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2020-08-22 02:53:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 02:53:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 02:53:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 02:53:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 02:53:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 02:53:05,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 02:53:06,219 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 02:53:06,219 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 02:53:06,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:53:06 BoogieIcfgContainer [2020-08-22 02:53:06,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 02:53:06,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 02:53:06,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 02:53:06,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 02:53:06,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 02:53:04" (1/3) ... [2020-08-22 02:53:06,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6470dd5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:53:06, skipping insertion in model container [2020-08-22 02:53:06,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:53:04" (2/3) ... [2020-08-22 02:53:06,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6470dd5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 02:53:06, skipping insertion in model container [2020-08-22 02:53:06,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:53:06" (3/3) ... [2020-08-22 02:53:06,233 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_productSimulator.cil.c [2020-08-22 02:53:06,243 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 02:53:06,252 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 02:53:06,266 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 02:53:06,290 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 02:53:06,291 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 02:53:06,291 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 02:53:06,291 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 02:53:06,292 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 02:53:06,292 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 02:53:06,292 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 02:53:06,293 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 02:53:06,321 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states. [2020-08-22 02:53:06,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-08-22 02:53:06,345 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:53:06,346 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:53:06,347 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:53:06,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:53:06,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1384301403, now seen corresponding path program 1 times [2020-08-22 02:53:06,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:53:06,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889748444] [2020-08-22 02:53:06,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:53:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,202 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 02:53:07,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:53:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:53:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:53:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 02:53:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:53:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 02:53:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 02:53:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 02:53:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 02:53:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 02:53:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 02:53:07,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-22 02:53:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:07,376 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-22 02:53:07,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1889748444] [2020-08-22 02:53:07,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:53:07,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 02:53:07,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105938890] [2020-08-22 02:53:07,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 02:53:07,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:53:07,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 02:53:07,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 02:53:07,403 INFO L87 Difference]: Start difference. First operand 248 states. Second operand 5 states. [2020-08-22 02:53:09,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:53:09,556 INFO L93 Difference]: Finished difference Result 448 states and 591 transitions. [2020-08-22 02:53:09,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 02:53:09,558 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2020-08-22 02:53:09,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:53:09,574 INFO L225 Difference]: With dead ends: 448 [2020-08-22 02:53:09,575 INFO L226 Difference]: Without dead ends: 254 [2020-08-22 02:53:09,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-08-22 02:53:09,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-08-22 02:53:09,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 205. [2020-08-22 02:53:09,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-08-22 02:53:09,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 252 transitions. [2020-08-22 02:53:09,709 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 252 transitions. Word has length 84 [2020-08-22 02:53:09,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:53:09,710 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 252 transitions. [2020-08-22 02:53:09,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 02:53:09,711 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 252 transitions. [2020-08-22 02:53:09,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-08-22 02:53:09,715 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:53:09,716 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:53:09,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 02:53:09,716 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:53:09,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:53:09,717 INFO L82 PathProgramCache]: Analyzing trace with hash 435784209, now seen corresponding path program 1 times [2020-08-22 02:53:09,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:53:09,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327951127] [2020-08-22 02:53:09,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:53:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,076 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 02:53:10,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:53:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:53:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:53:10,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 02:53:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:53:10,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 02:53:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 02:53:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 02:53:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 02:53:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-22 02:53:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-08-22 02:53:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-08-22 02:53:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-22 02:53:10,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327951127] [2020-08-22 02:53:10,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:53:10,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 02:53:10,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128343798] [2020-08-22 02:53:10,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 02:53:10,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:53:10,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 02:53:10,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 02:53:10,206 INFO L87 Difference]: Start difference. First operand 205 states and 252 transitions. Second operand 6 states. [2020-08-22 02:53:10,945 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-22 02:53:12,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:53:12,647 INFO L93 Difference]: Finished difference Result 372 states and 469 transitions. [2020-08-22 02:53:12,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 02:53:12,648 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2020-08-22 02:53:12,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:53:12,653 INFO L225 Difference]: With dead ends: 372 [2020-08-22 02:53:12,653 INFO L226 Difference]: Without dead ends: 238 [2020-08-22 02:53:12,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-08-22 02:53:12,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-08-22 02:53:12,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 196. [2020-08-22 02:53:12,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2020-08-22 02:53:12,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 240 transitions. [2020-08-22 02:53:12,707 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 240 transitions. Word has length 85 [2020-08-22 02:53:12,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:53:12,707 INFO L479 AbstractCegarLoop]: Abstraction has 196 states and 240 transitions. [2020-08-22 02:53:12,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 02:53:12,708 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 240 transitions. [2020-08-22 02:53:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-08-22 02:53:12,711 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:53:12,711 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:53:12,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 02:53:12,712 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:53:12,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:53:12,712 INFO L82 PathProgramCache]: Analyzing trace with hash 681264365, now seen corresponding path program 1 times [2020-08-22 02:53:12,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:53:12,713 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833757071] [2020-08-22 02:53:12,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:53:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,127 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 02:53:13,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:53:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:53:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:53:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 02:53:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:53:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 02:53:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 02:53:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 02:53:13,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 02:53:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 02:53:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-22 02:53:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 02:53:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-22 02:53:13,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833757071] [2020-08-22 02:53:13,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:53:13,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 02:53:13,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027116252] [2020-08-22 02:53:13,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 02:53:13,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:53:13,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 02:53:13,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-22 02:53:13,381 INFO L87 Difference]: Start difference. First operand 196 states and 240 transitions. Second operand 12 states. [2020-08-22 02:53:13,938 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 02:53:14,574 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 211 [2020-08-22 02:53:15,378 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 213 [2020-08-22 02:53:16,462 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 02:53:16,907 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2020-08-22 02:53:20,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:53:20,942 INFO L93 Difference]: Finished difference Result 643 states and 818 transitions. [2020-08-22 02:53:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 02:53:20,943 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2020-08-22 02:53:20,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:53:20,953 INFO L225 Difference]: With dead ends: 643 [2020-08-22 02:53:20,954 INFO L226 Difference]: Without dead ends: 488 [2020-08-22 02:53:20,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2020-08-22 02:53:20,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-08-22 02:53:21,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 397. [2020-08-22 02:53:21,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-08-22 02:53:21,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 497 transitions. [2020-08-22 02:53:21,081 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 497 transitions. Word has length 90 [2020-08-22 02:53:21,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:53:21,082 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 497 transitions. [2020-08-22 02:53:21,082 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 02:53:21,083 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 497 transitions. [2020-08-22 02:53:21,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-08-22 02:53:21,085 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:53:21,085 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:53:21,086 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 02:53:21,086 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:53:21,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:53:21,086 INFO L82 PathProgramCache]: Analyzing trace with hash -326319286, now seen corresponding path program 1 times [2020-08-22 02:53:21,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:53:21,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1764571457] [2020-08-22 02:53:21,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:53:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,446 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 02:53:21,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:53:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:21,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:53:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:53:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 02:53:21,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:53:21,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 02:53:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 02:53:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 02:53:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 02:53:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-22 02:53:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-22 02:53:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 02:53:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-08-22 02:53:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:21,628 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-22 02:53:21,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1764571457] [2020-08-22 02:53:21,629 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:53:21,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 02:53:21,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620554511] [2020-08-22 02:53:21,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 02:53:21,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:53:21,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 02:53:21,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-22 02:53:21,634 INFO L87 Difference]: Start difference. First operand 397 states and 497 transitions. Second operand 10 states. [2020-08-22 02:53:22,164 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 02:53:24,411 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-08-22 02:53:24,875 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-08-22 02:53:25,265 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 212 [2020-08-22 02:53:25,591 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 02:53:27,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:53:27,469 INFO L93 Difference]: Finished difference Result 1234 states and 1653 transitions. [2020-08-22 02:53:27,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 02:53:27,472 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-08-22 02:53:27,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:53:27,479 INFO L225 Difference]: With dead ends: 1234 [2020-08-22 02:53:27,479 INFO L226 Difference]: Without dead ends: 878 [2020-08-22 02:53:27,481 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-08-22 02:53:27,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-08-22 02:53:27,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 778. [2020-08-22 02:53:27,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 778 states. [2020-08-22 02:53:27,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 987 transitions. [2020-08-22 02:53:27,684 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 987 transitions. Word has length 96 [2020-08-22 02:53:27,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:53:27,685 INFO L479 AbstractCegarLoop]: Abstraction has 778 states and 987 transitions. [2020-08-22 02:53:27,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 02:53:27,685 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 987 transitions. [2020-08-22 02:53:27,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-08-22 02:53:27,688 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:53:27,689 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:53:27,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 02:53:27,689 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:53:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:53:27,690 INFO L82 PathProgramCache]: Analyzing trace with hash 635729360, now seen corresponding path program 1 times [2020-08-22 02:53:27,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:53:27,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [923882163] [2020-08-22 02:53:27,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:53:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:27,999 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-22 02:53:28,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 02:53:28,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 02:53:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 02:53:28,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 02:53:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 02:53:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-22 02:53:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 02:53:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 02:53:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-22 02:53:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-22 02:53:28,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-22 02:53:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 02:53:28,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-22 02:53:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 02:53:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-22 02:53:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 02:53:28,172 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-08-22 02:53:28,173 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [923882163] [2020-08-22 02:53:28,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 02:53:28,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 02:53:28,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383215325] [2020-08-22 02:53:28,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 02:53:28,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 02:53:28,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 02:53:28,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 02:53:28,176 INFO L87 Difference]: Start difference. First operand 778 states and 987 transitions. Second operand 8 states. [2020-08-22 02:53:28,862 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-22 02:53:32,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 02:53:32,697 INFO L93 Difference]: Finished difference Result 1840 states and 2490 transitions. [2020-08-22 02:53:32,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 02:53:32,698 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 100 [2020-08-22 02:53:32,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 02:53:32,705 INFO L225 Difference]: With dead ends: 1840 [2020-08-22 02:53:32,706 INFO L226 Difference]: Without dead ends: 1103 [2020-08-22 02:53:32,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=125, Invalid=255, Unknown=0, NotChecked=0, Total=380 [2020-08-22 02:53:32,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-08-22 02:53:32,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1024. [2020-08-22 02:53:32,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2020-08-22 02:53:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1298 transitions. [2020-08-22 02:53:32,948 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1298 transitions. Word has length 100 [2020-08-22 02:53:32,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 02:53:32,949 INFO L479 AbstractCegarLoop]: Abstraction has 1024 states and 1298 transitions. [2020-08-22 02:53:32,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 02:53:32,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1298 transitions. [2020-08-22 02:53:32,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-08-22 02:53:32,957 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 02:53:32,957 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 02:53:32,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 02:53:32,958 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 02:53:32,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 02:53:32,958 INFO L82 PathProgramCache]: Analyzing trace with hash -950611836, now seen corresponding path program 1 times [2020-08-22 02:53:32,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 02:53:32,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490763984] [2020-08-22 02:53:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 02:53:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 02:53:33,040 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 02:53:33,040 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 02:53:33,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 02:53:33,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 02:53:33 BoogieIcfgContainer [2020-08-22 02:53:33,071 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 02:53:33,073 INFO L168 Benchmark]: Toolchain (without parser) took 28798.19 ms. Allocated memory was 140.0 MB in the beginning and 659.6 MB in the end (delta: 519.6 MB). Free memory was 100.8 MB in the beginning and 553.3 MB in the end (delta: -452.5 MB). Peak memory consumption was 67.1 MB. Max. memory is 7.1 GB. [2020-08-22 02:53:33,074 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-22 02:53:33,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 705.67 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 100.6 MB in the beginning and 163.0 MB in the end (delta: -62.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-08-22 02:53:33,076 INFO L168 Benchmark]: Boogie Preprocessor took 87.25 ms. Allocated memory is still 200.3 MB. Free memory was 163.0 MB in the beginning and 158.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-08-22 02:53:33,076 INFO L168 Benchmark]: RCFGBuilder took 1155.95 ms. Allocated memory was 200.3 MB in the beginning and 234.9 MB in the end (delta: 34.6 MB). Free memory was 158.4 MB in the beginning and 176.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 76.8 MB. Max. memory is 7.1 GB. [2020-08-22 02:53:33,077 INFO L168 Benchmark]: TraceAbstraction took 26844.92 ms. Allocated memory was 234.9 MB in the beginning and 659.6 MB in the end (delta: 424.7 MB). Free memory was 176.9 MB in the beginning and 553.3 MB in the end (delta: -376.4 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. [2020-08-22 02:53:33,081 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 705.67 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 100.6 MB in the beginning and 163.0 MB in the end (delta: -62.4 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.25 ms. Allocated memory is still 200.3 MB. Free memory was 163.0 MB in the beginning and 158.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1155.95 ms. Allocated memory was 200.3 MB in the beginning and 234.9 MB in the end (delta: 34.6 MB). Free memory was 158.4 MB in the beginning and 176.9 MB in the end (delta: -18.4 MB). Peak memory consumption was 76.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 26844.92 ms. Allocated memory was 234.9 MB in the beginning and 659.6 MB in the end (delta: 424.7 MB). Free memory was 176.9 MB in the beginning and 553.3 MB in the end (delta: -376.4 MB). Peak memory consumption was 48.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1022]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L510] int __SELECTED_FEATURE_base ; [L511] int __SELECTED_FEATURE_highWaterSensor ; [L512] int __SELECTED_FEATURE_lowWaterSensor ; [L513] int __SELECTED_FEATURE_methaneQuery ; [L514] int __SELECTED_FEATURE_methaneAlarm ; [L515] int __SELECTED_FEATURE_stopCommand ; [L516] int __SELECTED_FEATURE_startCommand ; [L517] int __GUIDSL_ROOT_PRODUCTION ; [L605] int pumpRunning = 0; [L606] int systemActive = 1; [L1027] int waterLevel = 1; [L1028] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] CALL select_helpers() [L968] __GUIDSL_ROOT_PRODUCTION = 1 [L492] RET select_helpers() [L493] CALL select_features() [L953] __SELECTED_FEATURE_base = 1 [L954] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L954] RET, EXPR select_one() [L954] __SELECTED_FEATURE_highWaterSensor = select_one() [L955] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L955] RET, EXPR select_one() [L955] __SELECTED_FEATURE_lowWaterSensor = select_one() [L956] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L956] RET, EXPR select_one() [L956] __SELECTED_FEATURE_methaneQuery = select_one() [L957] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L957] RET, EXPR select_one() [L957] __SELECTED_FEATURE_methaneAlarm = select_one() [L958] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L958] RET, EXPR select_one() [L958] __SELECTED_FEATURE_stopCommand = select_one() [L959] CALL, EXPR select_one() [L939] int retValue_acc ; [L940] int choice = __VERIFIER_nondet_int(); [L943] retValue_acc = choice [L944] return (retValue_acc); [L959] RET, EXPR select_one() [L959] __SELECTED_FEATURE_startCommand = select_one() [L493] RET select_features() [L494] CALL, EXPR valid_product() [L973] int retValue_acc ; [L976] retValue_acc = __SELECTED_FEATURE_base [L977] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND TRUE \read(tmp) [L542] CALL waterRise() [L1045] COND TRUE waterLevel < 2 [L1046] waterLevel = waterLevel + 1 [L542] RET waterRise() [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND FALSE !(\read(tmp___2)) [L570] tmp___1 = __VERIFIER_nondet_int() [L572] COND TRUE \read(tmp___1) [L573] COND TRUE \read(__SELECTED_FEATURE_stopCommand) [L575] CALL stopSystem() [L917] COND FALSE !(\read(pumpRunning)) [L924] systemActive = 0 [L575] RET stopSystem() [L585] CALL timeShift() [L613] COND FALSE !(\read(pumpRunning)) [L620] COND FALSE !(\read(systemActive)) [L628] CALL __utac_acc__Specification3_spec__1() [L985] int tmp ; [L986] int tmp___0 ; [L987] int tmp___1 ; [L991] CALL, EXPR isMethaneLevelCritical() [L1066] int retValue_acc ; [L1069] retValue_acc = methaneLevelCritical [L1070] return (retValue_acc); [L991] RET, EXPR isMethaneLevelCritical() [L991] tmp = isMethaneLevelCritical() [L993] COND FALSE !(\read(tmp)) [L997] CALL, EXPR getWaterLevel() [L1098] int retValue_acc ; [L1101] retValue_acc = waterLevel [L1102] return (retValue_acc); [L997] RET, EXPR getWaterLevel() [L997] tmp___0 = getWaterLevel() [L999] COND TRUE tmp___0 == 2 [L1001] CALL, EXPR isPumpRunning() [L831] int retValue_acc ; [L834] retValue_acc = pumpRunning [L835] return (retValue_acc); [L1001] RET, EXPR isPumpRunning() [L1001] tmp___1 = isPumpRunning() [L1003] COND FALSE !(\read(tmp___1)) [L1007] CALL __automaton_fail() [L1022] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 301 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.7s, OverallIterations: 6, TraceHistogramMax: 6, AutomataDifference: 22.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 847 SDtfs, 3115 SDslu, 268 SDs, 0 SdLazy, 4717 SolverSat, 2593 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 154 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1024occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 361 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 555 NumberOfCodeBlocks, 555 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 167384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 225/225 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...