/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 06:00:05,157 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 06:00:05,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 06:00:05,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 06:00:05,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 06:00:05,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 06:00:05,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 06:00:05,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 06:00:05,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 06:00:05,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 06:00:05,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 06:00:05,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 06:00:05,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 06:00:05,183 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 06:00:05,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 06:00:05,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 06:00:05,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 06:00:05,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 06:00:05,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 06:00:05,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 06:00:05,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 06:00:05,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 06:00:05,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 06:00:05,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 06:00:05,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 06:00:05,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 06:00:05,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 06:00:05,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 06:00:05,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 06:00:05,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 06:00:05,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 06:00:05,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 06:00:05,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 06:00:05,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 06:00:05,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 06:00:05,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 06:00:05,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 06:00:05,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 06:00:05,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 06:00:05,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 06:00:05,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 06:00:05,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 06:00:05,216 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 06:00:05,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 06:00:05,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 06:00:05,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 06:00:05,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 06:00:05,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 06:00:05,218 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 06:00:05,218 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 06:00:05,218 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 06:00:05,218 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 06:00:05,218 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 06:00:05,218 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 06:00:05,218 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 06:00:05,218 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 06:00:05,218 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 06:00:05,219 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 06:00:05,219 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 06:00:05,219 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 06:00:05,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 06:00:05,219 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 06:00:05,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 06:00:05,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 06:00:05,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 06:00:05,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 06:00:05,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 06:00:05,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 06:00:05,220 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 06:00:05,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 06:00:05,220 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 06:00:05,220 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 06:00:05,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 06:00:05,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 06:00:05,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:00:05,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 06:00:05,221 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 06:00:05,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 06:00:05,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 06:00:05,221 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 06:00:05,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 06:00:05,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 06:00:05,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 06:00:05,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 06:00:05,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 06:00:05,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 06:00:05,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 06:00:05,431 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 06:00:05,432 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 06:00:05,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c [2023-04-01 06:00:06,500 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 06:00:06,679 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 06:00:06,679 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c [2023-04-01 06:00:06,688 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf628529f/432d084e3e6f4ba4a3c0aa6280b46322/FLAGca5a6cfc7 [2023-04-01 06:00:06,698 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf628529f/432d084e3e6f4ba4a3c0aa6280b46322 [2023-04-01 06:00:06,699 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 06:00:06,700 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 06:00:06,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 06:00:06,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 06:00:06,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 06:00:06,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:00:06" (1/1) ... [2023-04-01 06:00:06,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dfb0fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:06, skipping insertion in model container [2023-04-01 06:00:06,710 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 06:00:06" (1/1) ... [2023-04-01 06:00:06,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 06:00:06,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 06:00:06,912 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c[5266,5279] [2023-04-01 06:00:06,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:00:06,998 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 06:00:07,031 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product45.cil.c[5266,5279] [2023-04-01 06:00:07,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 06:00:07,085 INFO L208 MainTranslator]: Completed translation [2023-04-01 06:00:07,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07 WrapperNode [2023-04-01 06:00:07,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 06:00:07,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 06:00:07,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 06:00:07,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 06:00:07,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07" (1/1) ... [2023-04-01 06:00:07,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07" (1/1) ... [2023-04-01 06:00:07,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07" (1/1) ... [2023-04-01 06:00:07,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07" (1/1) ... [2023-04-01 06:00:07,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07" (1/1) ... [2023-04-01 06:00:07,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07" (1/1) ... [2023-04-01 06:00:07,147 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07" (1/1) ... [2023-04-01 06:00:07,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07" (1/1) ... [2023-04-01 06:00:07,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 06:00:07,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 06:00:07,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 06:00:07,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 06:00:07,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07" (1/1) ... [2023-04-01 06:00:07,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 06:00:07,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 06:00:07,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 06:00:07,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 06:00:07,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 06:00:07,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 06:00:07,229 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 06:00:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 06:00:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 06:00:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 06:00:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-01 06:00:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 06:00:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 06:00:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 06:00:07,230 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 06:00:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 06:00:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 06:00:07,230 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 06:00:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 06:00:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 06:00:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 06:00:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 06:00:07,231 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 06:00:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 06:00:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 06:00:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 06:00:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 06:00:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 06:00:07,232 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 06:00:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-01 06:00:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 06:00:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 06:00:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 06:00:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 06:00:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2023-04-01 06:00:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 06:00:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 06:00:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-01 06:00:07,233 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 06:00:07,234 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 06:00:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 06:00:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 06:00:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 06:00:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 06:00:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 06:00:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 06:00:07,235 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 06:00:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 06:00:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 06:00:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 06:00:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 06:00:07,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 06:00:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 06:00:07,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 06:00:07,349 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 06:00:07,351 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 06:00:07,843 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 06:00:07,912 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 06:00:07,912 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 06:00:07,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:00:07 BoogieIcfgContainer [2023-04-01 06:00:07,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 06:00:07,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 06:00:07,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 06:00:07,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 06:00:07,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 06:00:06" (1/3) ... [2023-04-01 06:00:07,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c603895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:00:07, skipping insertion in model container [2023-04-01 06:00:07,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 06:00:07" (2/3) ... [2023-04-01 06:00:07,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c603895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 06:00:07, skipping insertion in model container [2023-04-01 06:00:07,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 06:00:07" (3/3) ... [2023-04-01 06:00:07,926 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2023-04-01 06:00:07,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 06:00:07,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 06:00:07,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 06:00:07,989 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7810be23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 06:00:07,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 06:00:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 80 states have internal predecessors, (84), 47 states have call successors, (47), 29 states have call predecessors, (47), 29 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) [2023-04-01 06:00:08,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-01 06:00:08,000 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:00:08,001 INFO L195 NwaCegarLoop]: 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] [2023-04-01 06:00:08,002 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:00:08,007 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:00:08,007 INFO L85 PathProgramCache]: Analyzing trace with hash 394899821, now seen corresponding path program 1 times [2023-04-01 06:00:08,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:00:08,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514885180] [2023-04-01 06:00:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:08,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:00:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:08,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:00:08,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:00:08,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514885180] [2023-04-01 06:00:08,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514885180] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:00:08,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:00:08,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 06:00:08,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344259477] [2023-04-01 06:00:08,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:00:08,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 06:00:08,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:00:08,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 06:00:08,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 06:00:08,248 INFO L87 Difference]: Start difference. First operand has 146 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 80 states have internal predecessors, (84), 47 states have call successors, (47), 29 states have call predecessors, (47), 29 states have return successors, (47), 43 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 06:00:08,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:00:08,326 INFO L93 Difference]: Finished difference Result 225 states and 270 transitions. [2023-04-01 06:00:08,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 06:00:08,328 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-01 06:00:08,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:00:08,335 INFO L225 Difference]: With dead ends: 225 [2023-04-01 06:00:08,335 INFO L226 Difference]: Without dead ends: 113 [2023-04-01 06:00:08,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 06:00:08,342 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 06:00:08,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 06:00:08,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-04-01 06:00:08,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-04-01 06:00:08,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 58 states have (on average 1.206896551724138) internal successors, (70), 68 states have internal predecessors, (70), 32 states have call successors, (32), 27 states have call predecessors, (32), 22 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-04-01 06:00:08,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2023-04-01 06:00:08,376 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 42 [2023-04-01 06:00:08,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:00:08,380 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2023-04-01 06:00:08,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 06:00:08,381 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2023-04-01 06:00:08,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-01 06:00:08,383 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:00:08,383 INFO L195 NwaCegarLoop]: 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] [2023-04-01 06:00:08,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 06:00:08,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:00:08,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:00:08,384 INFO L85 PathProgramCache]: Analyzing trace with hash 380219758, now seen corresponding path program 1 times [2023-04-01 06:00:08,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:00:08,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899195247] [2023-04-01 06:00:08,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:08,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:00:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:08,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:00:08,488 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:00:08,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899195247] [2023-04-01 06:00:08,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899195247] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:00:08,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:00:08,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 06:00:08,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127589008] [2023-04-01 06:00:08,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:00:08,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 06:00:08,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:00:08,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 06:00:08,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 06:00:08,491 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 06:00:08,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:00:08,545 INFO L93 Difference]: Finished difference Result 183 states and 209 transitions. [2023-04-01 06:00:08,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 06:00:08,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-01 06:00:08,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:00:08,546 INFO L225 Difference]: With dead ends: 183 [2023-04-01 06:00:08,546 INFO L226 Difference]: Without dead ends: 105 [2023-04-01 06:00:08,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 06:00:08,548 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 7 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 06:00:08,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 196 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 06:00:08,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-04-01 06:00:08,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-04-01 06:00:08,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 63 states have internal predecessors, (64), 29 states have call successors, (29), 26 states have call predecessors, (29), 22 states have return successors, (25), 21 states have call predecessors, (25), 25 states have call successors, (25) [2023-04-01 06:00:08,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 118 transitions. [2023-04-01 06:00:08,560 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 118 transitions. Word has length 43 [2023-04-01 06:00:08,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:00:08,560 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 118 transitions. [2023-04-01 06:00:08,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 06:00:08,561 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2023-04-01 06:00:08,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-01 06:00:08,562 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:00:08,562 INFO L195 NwaCegarLoop]: 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] [2023-04-01 06:00:08,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 06:00:08,562 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:00:08,562 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:00:08,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1339227255, now seen corresponding path program 1 times [2023-04-01 06:00:08,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:00:08,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247412473] [2023-04-01 06:00:08,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:08,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:00:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:00:08,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:00:08,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247412473] [2023-04-01 06:00:08,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247412473] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:00:08,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:00:08,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 06:00:08,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21700435] [2023-04-01 06:00:08,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:00:08,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 06:00:08,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:00:08,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 06:00:08,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 06:00:08,763 INFO L87 Difference]: Start difference. First operand 105 states and 118 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 06:00:08,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:00:08,971 INFO L93 Difference]: Finished difference Result 188 states and 215 transitions. [2023-04-01 06:00:08,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 06:00:08,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 45 [2023-04-01 06:00:08,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:00:08,976 INFO L225 Difference]: With dead ends: 188 [2023-04-01 06:00:08,976 INFO L226 Difference]: Without dead ends: 105 [2023-04-01 06:00:08,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-01 06:00:08,985 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 108 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 06:00:08,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 288 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 06:00:08,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-04-01 06:00:08,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-04-01 06:00:08,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 62 states have internal predecessors, (63), 29 states have call successors, (29), 26 states have call predecessors, (29), 22 states have return successors, (25), 21 states have call predecessors, (25), 25 states have call successors, (25) [2023-04-01 06:00:08,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2023-04-01 06:00:08,998 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 45 [2023-04-01 06:00:08,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:00:08,998 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2023-04-01 06:00:08,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 06:00:08,998 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2023-04-01 06:00:08,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-01 06:00:09,000 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:00:09,000 INFO L195 NwaCegarLoop]: 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] [2023-04-01 06:00:09,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 06:00:09,000 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:00:09,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:00:09,001 INFO L85 PathProgramCache]: Analyzing trace with hash -367475852, now seen corresponding path program 1 times [2023-04-01 06:00:09,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:00:09,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894648084] [2023-04-01 06:00:09,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:09,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:00:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:09,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:00:09,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:00:09,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894648084] [2023-04-01 06:00:09,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894648084] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:00:09,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:00:09,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 06:00:09,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185713386] [2023-04-01 06:00:09,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:00:09,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 06:00:09,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:00:09,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 06:00:09,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 06:00:09,184 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-01 06:00:09,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:00:09,503 INFO L93 Difference]: Finished difference Result 278 states and 322 transitions. [2023-04-01 06:00:09,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 06:00:09,504 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) Word has length 58 [2023-04-01 06:00:09,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:00:09,511 INFO L225 Difference]: With dead ends: 278 [2023-04-01 06:00:09,511 INFO L226 Difference]: Without dead ends: 195 [2023-04-01 06:00:09,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-04-01 06:00:09,516 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 155 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 06:00:09,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 140 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 06:00:09,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-04-01 06:00:09,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 180. [2023-04-01 06:00:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 96 states have (on average 1.1458333333333333) internal successors, (110), 104 states have internal predecessors, (110), 41 states have call successors, (41), 40 states have call predecessors, (41), 42 states have return successors, (45), 40 states have call predecessors, (45), 37 states have call successors, (45) [2023-04-01 06:00:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 196 transitions. [2023-04-01 06:00:09,556 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 196 transitions. Word has length 58 [2023-04-01 06:00:09,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:00:09,557 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 196 transitions. [2023-04-01 06:00:09,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 5 states have call successors, (16), 4 states have call predecessors, (16), 3 states have return successors, (10), 3 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-01 06:00:09,558 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 196 transitions. [2023-04-01 06:00:09,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-04-01 06:00:09,564 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:00:09,564 INFO L195 NwaCegarLoop]: 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] [2023-04-01 06:00:09,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 06:00:09,565 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:00:09,565 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:00:09,565 INFO L85 PathProgramCache]: Analyzing trace with hash -590411381, now seen corresponding path program 1 times [2023-04-01 06:00:09,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:00:09,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133760034] [2023-04-01 06:00:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:09,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:00:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:00:09,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:00:09,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133760034] [2023-04-01 06:00:09,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133760034] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:00:09,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:00:09,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-01 06:00:09,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769950087] [2023-04-01 06:00:09,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:00:09,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-01 06:00:09,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:00:09,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-01 06:00:09,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-04-01 06:00:09,726 INFO L87 Difference]: Start difference. First operand 180 states and 196 transitions. Second operand has 10 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-04-01 06:00:10,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:00:10,031 INFO L93 Difference]: Finished difference Result 536 states and 611 transitions. [2023-04-01 06:00:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-01 06:00:10,031 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 67 [2023-04-01 06:00:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:00:10,035 INFO L225 Difference]: With dead ends: 536 [2023-04-01 06:00:10,035 INFO L226 Difference]: Without dead ends: 378 [2023-04-01 06:00:10,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-04-01 06:00:10,038 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 175 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 06:00:10,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 666 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 06:00:10,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-04-01 06:00:10,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 364. [2023-04-01 06:00:10,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 202 states have (on average 1.1386138613861385) internal successors, (230), 218 states have internal predecessors, (230), 77 states have call successors, (77), 76 states have call predecessors, (77), 84 states have return successors, (95), 80 states have call predecessors, (95), 73 states have call successors, (95) [2023-04-01 06:00:10,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 402 transitions. [2023-04-01 06:00:10,087 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 402 transitions. Word has length 67 [2023-04-01 06:00:10,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:00:10,088 INFO L495 AbstractCegarLoop]: Abstraction has 364 states and 402 transitions. [2023-04-01 06:00:10,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-04-01 06:00:10,088 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 402 transitions. [2023-04-01 06:00:10,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-01 06:00:10,091 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:00:10,091 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:00:10,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 06:00:10,092 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:00:10,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:00:10,092 INFO L85 PathProgramCache]: Analyzing trace with hash -872737360, now seen corresponding path program 1 times [2023-04-01 06:00:10,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:00:10,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093670037] [2023-04-01 06:00:10,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:10,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:00:10,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:10,358 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-01 06:00:10,358 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:00:10,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093670037] [2023-04-01 06:00:10,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093670037] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 06:00:10,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438882825] [2023-04-01 06:00:10,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:10,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 06:00:10,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 06:00:10,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 06:00:10,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 06:00:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:10,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-01 06:00:10,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 06:00:10,877 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-01 06:00:10,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 06:00:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-01 06:00:11,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438882825] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 06:00:11,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [904096423] [2023-04-01 06:00:11,385 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2023-04-01 06:00:11,385 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 06:00:11,388 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 06:00:11,391 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 06:00:11,391 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 06:00:11,541 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-01 06:00:11,572 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2023-04-01 06:00:11,685 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 30 for LOIs [2023-04-01 06:00:11,695 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-01 06:00:11,697 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-01 06:00:11,700 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 30 for LOIs [2023-04-01 06:00:13,388 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 35 for LOIs [2023-04-01 06:00:13,396 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 43 for LOIs [2023-04-01 06:00:13,585 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 22 for LOIs [2023-04-01 06:00:13,620 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 24 for LOIs [2023-04-01 06:00:13,622 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 22 for LOIs [2023-04-01 06:00:13,624 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-01 06:00:13,627 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-01 06:00:13,628 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 40 for LOIs [2023-04-01 06:00:13,669 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 40 for LOIs [2023-04-01 06:00:13,743 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 38 for LOIs [2023-04-01 06:00:13,824 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 38 for LOIs [2023-04-01 06:00:13,831 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 22 for LOIs [2023-04-01 06:00:13,832 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 06:00:15,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [904096423] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:00:15,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-01 06:00:15,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [7, 14, 12] total 61 [2023-04-01 06:00:15,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640528436] [2023-04-01 06:00:15,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:00:15,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-04-01 06:00:15,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:00:15,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-04-01 06:00:15,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=405, Invalid=3255, Unknown=0, NotChecked=0, Total=3660 [2023-04-01 06:00:15,847 INFO L87 Difference]: Start difference. First operand 364 states and 402 transitions. Second operand has 35 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 27 states have internal predecessors, (41), 12 states have call successors, (19), 9 states have call predecessors, (19), 13 states have return successors, (15), 13 states have call predecessors, (15), 10 states have call successors, (15) [2023-04-01 06:00:25,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:00:25,035 INFO L93 Difference]: Finished difference Result 731 states and 829 transitions. [2023-04-01 06:00:25,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-04-01 06:00:25,036 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 27 states have internal predecessors, (41), 12 states have call successors, (19), 9 states have call predecessors, (19), 13 states have return successors, (15), 13 states have call predecessors, (15), 10 states have call successors, (15) Word has length 115 [2023-04-01 06:00:25,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:00:25,041 INFO L225 Difference]: With dead ends: 731 [2023-04-01 06:00:25,041 INFO L226 Difference]: Without dead ends: 573 [2023-04-01 06:00:25,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 303 SyntacticMatches, 2 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2406 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=1319, Invalid=7993, Unknown=0, NotChecked=0, Total=9312 [2023-04-01 06:00:25,047 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 558 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 3008 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 3430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 3008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-01 06:00:25,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 97 Invalid, 3430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 3008 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-01 06:00:25,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-04-01 06:00:25,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 535. [2023-04-01 06:00:25,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 303 states have (on average 1.132013201320132) internal successors, (343), 324 states have internal predecessors, (343), 112 states have call successors, (112), 111 states have call predecessors, (112), 119 states have return successors, (142), 112 states have call predecessors, (142), 108 states have call successors, (142) [2023-04-01 06:00:25,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 597 transitions. [2023-04-01 06:00:25,163 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 597 transitions. Word has length 115 [2023-04-01 06:00:25,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:00:25,163 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 597 transitions. [2023-04-01 06:00:25,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 27 states have internal predecessors, (41), 12 states have call successors, (19), 9 states have call predecessors, (19), 13 states have return successors, (15), 13 states have call predecessors, (15), 10 states have call successors, (15) [2023-04-01 06:00:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 597 transitions. [2023-04-01 06:00:25,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-04-01 06:00:25,170 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:00:25,170 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:00:25,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 06:00:25,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-04-01 06:00:25,377 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:00:25,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:00:25,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1157346107, now seen corresponding path program 1 times [2023-04-01 06:00:25,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:00:25,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405295471] [2023-04-01 06:00:25,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:25,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:00:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-01 06:00:25,559 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:00:25,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405295471] [2023-04-01 06:00:25,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405295471] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 06:00:25,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156292753] [2023-04-01 06:00:25,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:25,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 06:00:25,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 06:00:25,561 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 06:00:25,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 06:00:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:25,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 51 conjunts are in the unsatisfiable core [2023-04-01 06:00:25,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 06:00:25,939 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 06:00:25,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 06:00:26,667 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-04-01 06:00:26,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156292753] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 06:00:26,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [810324743] [2023-04-01 06:00:26,670 INFO L159 IcfgInterpreter]: Started Sifa with 97 locations of interest [2023-04-01 06:00:26,670 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 06:00:26,671 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 06:00:26,671 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 06:00:26,671 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 06:00:26,746 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 28 for LOIs [2023-04-01 06:00:26,777 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 30 for LOIs [2023-04-01 06:00:26,841 INFO L197 IcfgInterpreter]: Interpreting procedure runTest with input of size 30 for LOIs [2023-04-01 06:00:26,847 INFO L197 IcfgInterpreter]: Interpreting procedure test with input of size 30 for LOIs [2023-04-01 06:00:27,950 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 37 for LOIs [2023-04-01 06:00:27,955 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 45 for LOIs [2023-04-01 06:00:28,152 INFO L197 IcfgInterpreter]: Interpreting procedure lowerWaterLevel with input of size 45 for LOIs [2023-04-01 06:00:28,160 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment with input of size 32 for LOIs [2023-04-01 06:00:28,221 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 24 for LOIs [2023-04-01 06:00:28,313 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterLevel with input of size 22 for LOIs [2023-04-01 06:00:28,360 INFO L197 IcfgInterpreter]: Interpreting procedure isHighWaterSensorDry with input of size 22 for LOIs [2023-04-01 06:00:28,364 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump with input of size 34 for LOIs [2023-04-01 06:00:28,398 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 27 for LOIs [2023-04-01 06:00:28,443 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 27 for LOIs [2023-04-01 06:00:28,447 INFO L197 IcfgInterpreter]: Interpreting procedure activatePump__wrappee__highWaterSensor with input of size 24 for LOIs [2023-04-01 06:00:28,449 INFO L197 IcfgInterpreter]: Interpreting procedure setup with input of size 24 for LOIs [2023-04-01 06:00:28,450 INFO L197 IcfgInterpreter]: Interpreting procedure select_features with input of size 24 for LOIs [2023-04-01 06:00:28,452 INFO L197 IcfgInterpreter]: Interpreting procedure __utac_acc__Specification4_spec__1 with input of size 26 for LOIs [2023-04-01 06:00:28,499 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 28 for LOIs [2023-04-01 06:00:28,501 INFO L197 IcfgInterpreter]: Interpreting procedure __automaton_fail with input of size 30 for LOIs [2023-04-01 06:00:28,503 INFO L197 IcfgInterpreter]: Interpreting procedure getWaterLevel with input of size 26 for LOIs [2023-04-01 06:00:28,505 INFO L197 IcfgInterpreter]: Interpreting procedure valid_product with input of size 24 for LOIs [2023-04-01 06:00:28,507 INFO L197 IcfgInterpreter]: Interpreting procedure select_helpers with input of size 24 for LOIs [2023-04-01 06:00:28,508 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 06:00:32,592 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6962#(and (not (= ~pumpRunning~0 0)) (<= ~pumpRunning~0 1) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (= ~waterLevel~0 0) (<= ~pumpRunning~0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2023-04-01 06:00:32,592 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 06:00:32,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 06:00:32,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 17] total 38 [2023-04-01 06:00:32,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58450531] [2023-04-01 06:00:32,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 06:00:32,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-04-01 06:00:32,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:00:32,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-04-01 06:00:32,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=7704, Unknown=0, NotChecked=0, Total=8372 [2023-04-01 06:00:32,607 INFO L87 Difference]: Start difference. First operand 535 states and 597 transitions. Second operand has 38 states, 28 states have (on average 5.25) internal successors, (147), 29 states have internal predecessors, (147), 11 states have call successors, (67), 11 states have call predecessors, (67), 18 states have return successors, (60), 20 states have call predecessors, (60), 11 states have call successors, (60) [2023-04-01 06:00:40,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:00:40,683 INFO L93 Difference]: Finished difference Result 2457 states and 3196 transitions. [2023-04-01 06:00:40,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2023-04-01 06:00:40,684 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 28 states have (on average 5.25) internal successors, (147), 29 states have internal predecessors, (147), 11 states have call successors, (67), 11 states have call predecessors, (67), 18 states have return successors, (60), 20 states have call predecessors, (60), 11 states have call successors, (60) Word has length 123 [2023-04-01 06:00:40,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:00:40,693 INFO L225 Difference]: With dead ends: 2457 [2023-04-01 06:00:40,693 INFO L226 Difference]: Without dead ends: 1938 [2023-04-01 06:00:40,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 348 SyntacticMatches, 6 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26661 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=4271, Invalid=64111, Unknown=0, NotChecked=0, Total=68382 [2023-04-01 06:00:40,704 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 2488 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 8274 mSolverCounterSat, 2324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 10598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2324 IncrementalHoareTripleChecker+Valid, 8274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-01 06:00:40,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2492 Valid, 2040 Invalid, 10598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2324 Valid, 8274 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-01 06:00:40,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1938 states. [2023-04-01 06:00:40,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1938 to 1432. [2023-04-01 06:00:40,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 811 states have (on average 1.1035758323057954) internal successors, (895), 849 states have internal predecessors, (895), 311 states have call successors, (311), 303 states have call predecessors, (311), 309 states have return successors, (383), 301 states have call predecessors, (383), 307 states have call successors, (383) [2023-04-01 06:00:40,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1589 transitions. [2023-04-01 06:00:40,847 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1589 transitions. Word has length 123 [2023-04-01 06:00:40,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:00:40,848 INFO L495 AbstractCegarLoop]: Abstraction has 1432 states and 1589 transitions. [2023-04-01 06:00:40,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 28 states have (on average 5.25) internal successors, (147), 29 states have internal predecessors, (147), 11 states have call successors, (67), 11 states have call predecessors, (67), 18 states have return successors, (60), 20 states have call predecessors, (60), 11 states have call successors, (60) [2023-04-01 06:00:40,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1589 transitions. [2023-04-01 06:00:40,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-04-01 06:00:40,849 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:00:40,850 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:00:40,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 06:00:41,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-04-01 06:00:41,060 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:00:41,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:00:41,060 INFO L85 PathProgramCache]: Analyzing trace with hash 30192264, now seen corresponding path program 1 times [2023-04-01 06:00:41,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:00:41,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39296193] [2023-04-01 06:00:41,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:41,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:00:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:41,328 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-01 06:00:41,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:00:41,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39296193] [2023-04-01 06:00:41,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39296193] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 06:00:41,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363689122] [2023-04-01 06:00:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:41,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 06:00:41,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 06:00:41,329 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 06:00:41,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 06:00:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:41,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 27 conjunts are in the unsatisfiable core [2023-04-01 06:00:41,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 06:00:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 06:00:41,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 06:00:41,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363689122] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:00:41,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 06:00:41,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 24 [2023-04-01 06:00:41,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146982574] [2023-04-01 06:00:41,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:00:41,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-01 06:00:41,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:00:41,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-01 06:00:41,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2023-04-01 06:00:41,810 INFO L87 Difference]: Start difference. First operand 1432 states and 1589 transitions. Second operand has 12 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 7 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2023-04-01 06:00:42,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:00:42,750 INFO L93 Difference]: Finished difference Result 3423 states and 3992 transitions. [2023-04-01 06:00:42,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-01 06:00:42,751 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 7 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) Word has length 123 [2023-04-01 06:00:42,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:00:42,759 INFO L225 Difference]: With dead ends: 3423 [2023-04-01 06:00:42,759 INFO L226 Difference]: Without dead ends: 2098 [2023-04-01 06:00:42,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=240, Invalid=1320, Unknown=0, NotChecked=0, Total=1560 [2023-04-01 06:00:42,762 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 251 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 06:00:42,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 200 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 06:00:42,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2023-04-01 06:00:42,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 2067. [2023-04-01 06:00:42,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2067 states, 1213 states have (on average 1.0981038746908491) internal successors, (1332), 1240 states have internal predecessors, (1332), 455 states have call successors, (455), 451 states have call predecessors, (455), 398 states have return successors, (566), 400 states have call predecessors, (566), 451 states have call successors, (566) [2023-04-01 06:00:42,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 2353 transitions. [2023-04-01 06:00:42,976 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 2353 transitions. Word has length 123 [2023-04-01 06:00:42,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:00:42,976 INFO L495 AbstractCegarLoop]: Abstraction has 2067 states and 2353 transitions. [2023-04-01 06:00:42,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.9) internal successors, (69), 9 states have internal predecessors, (69), 7 states have call successors, (30), 6 states have call predecessors, (30), 6 states have return successors, (24), 6 states have call predecessors, (24), 7 states have call successors, (24) [2023-04-01 06:00:42,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 2353 transitions. [2023-04-01 06:00:42,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-04-01 06:00:42,979 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:00:42,979 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:00:42,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-04-01 06:00:43,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 06:00:43,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:00:43,188 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:00:43,189 INFO L85 PathProgramCache]: Analyzing trace with hash 38076455, now seen corresponding path program 1 times [2023-04-01 06:00:43,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:00:43,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050123950] [2023-04-01 06:00:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:43,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:00:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 06:00:43,267 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-04-01 06:00:43,267 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 06:00:43,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050123950] [2023-04-01 06:00:43,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050123950] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 06:00:43,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 06:00:43,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 06:00:43,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881449874] [2023-04-01 06:00:43,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 06:00:43,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 06:00:43,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 06:00:43,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 06:00:43,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 06:00:43,269 INFO L87 Difference]: Start difference. First operand 2067 states and 2353 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 06:00:43,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 06:00:43,555 INFO L93 Difference]: Finished difference Result 2070 states and 2355 transitions. [2023-04-01 06:00:43,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 06:00:43,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 171 [2023-04-01 06:00:43,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 06:00:43,567 INFO L225 Difference]: With dead ends: 2070 [2023-04-01 06:00:43,567 INFO L226 Difference]: Without dead ends: 2067 [2023-04-01 06:00:43,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-04-01 06:00:43,569 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 88 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 06:00:43,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 412 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 06:00:43,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2023-04-01 06:00:43,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 2067. [2023-04-01 06:00:43,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2067 states, 1213 states have (on average 1.0948062654575432) internal successors, (1328), 1240 states have internal predecessors, (1328), 455 states have call successors, (455), 451 states have call predecessors, (455), 398 states have return successors, (566), 400 states have call predecessors, (566), 451 states have call successors, (566) [2023-04-01 06:00:43,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 2349 transitions. [2023-04-01 06:00:43,768 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 2349 transitions. Word has length 171 [2023-04-01 06:00:43,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 06:00:43,769 INFO L495 AbstractCegarLoop]: Abstraction has 2067 states and 2349 transitions. [2023-04-01 06:00:43,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 06:00:43,769 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 2349 transitions. [2023-04-01 06:00:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-04-01 06:00:43,771 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 06:00:43,771 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:00:43,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-01 06:00:43,771 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 06:00:43,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 06:00:43,772 INFO L85 PathProgramCache]: Analyzing trace with hash -122269239, now seen corresponding path program 1 times [2023-04-01 06:00:43,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 06:00:43,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318577305] [2023-04-01 06:00:43,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 06:00:43,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 06:00:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 06:00:43,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-01 06:00:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-01 06:00:43,845 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-04-01 06:00:43,845 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-01 06:00:43,846 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 06:00:43,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-01 06:00:43,849 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 06:00:43,852 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 06:00:43,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 06:00:43 BoogieIcfgContainer [2023-04-01 06:00:43,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 06:00:43,913 INFO L158 Benchmark]: Toolchain (without parser) took 37213.08ms. Allocated memory was 182.5MB in the beginning and 739.2MB in the end (delta: 556.8MB). Free memory was 146.0MB in the beginning and 414.9MB in the end (delta: -269.0MB). Peak memory consumption was 288.6MB. Max. memory is 8.0GB. [2023-04-01 06:00:43,913 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 06:00:43,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.12ms. Allocated memory is still 182.5MB. Free memory was 146.0MB in the beginning and 127.6MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-01 06:00:43,914 INFO L158 Benchmark]: Boogie Preprocessor took 66.17ms. Allocated memory is still 182.5MB. Free memory was 127.6MB in the beginning and 123.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-01 06:00:43,914 INFO L158 Benchmark]: RCFGBuilder took 751.87ms. Allocated memory is still 182.5MB. Free memory was 123.9MB in the beginning and 126.8MB in the end (delta: -2.9MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-04-01 06:00:43,914 INFO L158 Benchmark]: TraceAbstraction took 35997.40ms. Allocated memory was 182.5MB in the beginning and 739.2MB in the end (delta: 556.8MB). Free memory was 126.3MB in the beginning and 414.9MB in the end (delta: -288.6MB). Peak memory consumption was 268.7MB. Max. memory is 8.0GB. [2023-04-01 06:00:43,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 182.5MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 384.12ms. Allocated memory is still 182.5MB. Free memory was 146.0MB in the beginning and 127.6MB in the end (delta: 18.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 66.17ms. Allocated memory is still 182.5MB. Free memory was 127.6MB in the beginning and 123.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 751.87ms. Allocated memory is still 182.5MB. Free memory was 123.9MB in the beginning and 126.8MB in the end (delta: -2.9MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 35997.40ms. Allocated memory was 182.5MB in the beginning and 739.2MB in the end (delta: 556.8MB). Free memory was 126.3MB in the beginning and 414.9MB in the end (delta: -288.6MB). Peak memory consumption was 268.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 327]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L127] int pumpRunning = 0; [L128] int systemActive = 1; [L501] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L725] int cleanupTimeShifts = 4; [L824] int waterLevel = 1; [L825] int methaneLevelCritical = 0; [L801] int retValue_acc ; [L802] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L806] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L807] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L808] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L944] int retValue_acc ; [L947] retValue_acc = 1 [L948] return (retValue_acc); [L808] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L808] tmp = valid_product() [L810] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L812] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L813] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L55] int splverifierCounter ; [L56] int tmp ; [L57] int tmp___0 ; [L58] int tmp___1 ; [L59] int tmp___2 ; [L62] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L64] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L76] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L842] COND TRUE waterLevel < 2 [L843] waterLevel = waterLevel + 1 [L76] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___2)) [L98] tmp___1 = __VERIFIER_nondet_int() [L100] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=16, tmp___2=0, waterLevel=2] [L107] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L135] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L142] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L144] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L190] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L193] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L208] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L164] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L169] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L304] int retValue_acc ; [L305] int tmp ; [L306] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L310] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L904] int retValue_acc ; [L907] COND FALSE !(waterLevel < 2) [L911] retValue_acc = 0 [L912] return (retValue_acc); [L310] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L310] tmp = isHighWaterSensorDry() [L312] COND FALSE !(\read(tmp)) [L315] tmp___0 = 1 [L317] retValue_acc = tmp___0 [L318] return (retValue_acc); [L169] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L169] tmp = isHighWaterLevel() [L171] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L173] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L223] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L227] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L248] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L252] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L863] int retValue_acc ; [L866] retValue_acc = methaneLevelCritical [L867] return (retValue_acc); [L252] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L252] retValue_acc = isMethaneLevelCritical() [L254] return (retValue_acc); [L227] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L227] tmp = isMethaneAlarm() [L229] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L233] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L218] pumpRunning = 1 [L233] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L173] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L208] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L144] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L150] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L700] int tmp ; [L701] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L705] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); [L705] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L705] tmp = getWaterLevel() [L707] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L150] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L107] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=16, tmp___2=0, waterLevel=2] [L64] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=16, tmp___2=0, waterLevel=2] [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=16, tmp___2=0, waterLevel=2] [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=16, tmp___2=0, waterLevel=2] [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=16, tmp___2=-1, waterLevel=2] [L107] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L135] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L137] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 [L137] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L142] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L144] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L190] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L193] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L195] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L248] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L252] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L863] int retValue_acc ; [L866] retValue_acc = methaneLevelCritical [L867] return (retValue_acc); [L252] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L252] retValue_acc = isMethaneLevelCritical() [L254] return (retValue_acc); [L195] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L195] tmp = isMethaneAlarm() [L197] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L203] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L164] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L167] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L182] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L203] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L144] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L150] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L700] int tmp ; [L701] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L705] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); [L705] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L705] tmp = getWaterLevel() [L707] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L150] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L107] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=16, tmp___2=-1, waterLevel=1] [L64] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=16, tmp___2=-1, waterLevel=1] [L66] COND TRUE splverifierCounter < 4 [L72] tmp = __VERIFIER_nondet_int() [L74] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=16, tmp___2=-1, waterLevel=1] [L82] tmp___0 = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=16, tmp___2=-1, waterLevel=1] [L92] tmp___2 = __VERIFIER_nondet_int() [L94] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=52, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=16, tmp___2=-2, waterLevel=1] [L107] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L135] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L137] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L830] COND TRUE waterLevel > 0 [L831] waterLevel = waterLevel - 1 [L137] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L142] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L144] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L190] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L193] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L195] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L248] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L252] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L863] int retValue_acc ; [L866] retValue_acc = methaneLevelCritical [L867] return (retValue_acc); [L252] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L252] retValue_acc = isMethaneLevelCritical() [L254] return (retValue_acc); [L195] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L195] tmp = isMethaneAlarm() [L197] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L203] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L164] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L167] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L182] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L203] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L144] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L150] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L700] int tmp ; [L701] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L705] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L895] int retValue_acc ; [L898] retValue_acc = waterLevel [L899] return (retValue_acc); [L705] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L705] tmp = getWaterLevel() [L707] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L709] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L259] int retValue_acc ; [L262] retValue_acc = pumpRunning [L263] return (retValue_acc); [L709] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L709] tmp___0 = isPumpRunning() [L711] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L713] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L327] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 185 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 35.9s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3883 SdHoareTripleChecker+Valid, 7.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3830 mSDsluCounter, 4162 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3375 mSDsCounter, 3046 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13403 IncrementalHoareTripleChecker+Invalid, 16449 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3046 mSolverCounterUnsat, 787 mSDtfsCounter, 13403 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1236 GetRequests, 796 SyntacticMatches, 8 SemanticMatches, 432 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29442 ImplicationChecksByTransitivity, 18.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2067occurred in iteration=8, InterpolantAutomatonStates: 279, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 604 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 1321 NumberOfCodeBlocks, 1321 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1372 ConstructedInterpolants, 0 QuantifiedInterpolants, 3497 SizeOfPredicates, 24 NumberOfNonLiveVariables, 1331 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 306/353 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: OVERALL_TIME: 2.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 19, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 84, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 79, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 68, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 50, TOOLS_POST_RETURN_TIME: 0.3s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 197, TOOLS_QUANTIFIERELIM_TIME: 0.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 273, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 46, DOMAIN_JOIN_TIME: 1.4s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 84, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 1.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 50, CALL_SUMMARIZER_CACHE_MISSES: 15, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 605, DAG_COMPRESSION_RETAINED_NODES: 252, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-04-01 06:00:43,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...