/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 IntervalDomain -i ../sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:53:06,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:53:06,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:53:06,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:53:06,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:53:06,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:53:06,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:53:06,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:53:06,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:53:06,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:53:06,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:53:06,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:53:06,341 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:53:06,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:53:06,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:53:06,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:53:06,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:53:06,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:53:06,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:53:06,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:53:06,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:53:06,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:53:06,356 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:53:06,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:53:06,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:53:06,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:53:06,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:53:06,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:53:06,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:53:06,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:53:06,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:53:06,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:53:06,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:53:06,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:53:06,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:53:06,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:53:06,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:53:06,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:53:06,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:53:06,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:53:06,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:53:06,369 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 [2023-03-31 23:53:06,393 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:53:06,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:53:06,393 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:53:06,393 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:53:06,394 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:53:06,394 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:53:06,394 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:53:06,394 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:53:06,394 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:53:06,395 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:53:06,395 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:53:06,395 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:53:06,395 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:53:06,395 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:53:06,395 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:53:06,396 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:53:06,396 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:53:06,396 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:53:06,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:53:06,396 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:53:06,396 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:53:06,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:53:06,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:53:06,397 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:53:06,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:53:06,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:53:06,397 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:53:06,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:53:06,397 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:53:06,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:53:06,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:53:06,397 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:53:06,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:53:06,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:53:06,398 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:53:06,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:53:06,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:53:06,398 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:53:06,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:53:06,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:53:06,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:53:06,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:53:06,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:53:06,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:53:06,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:53:06,633 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:53:06,633 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:53:06,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c [2023-03-31 23:53:07,781 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:53:07,942 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:53:07,945 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product15.cil.c [2023-03-31 23:53:07,952 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684d038a1/87a43a58956a437582973e0b923fffc5/FLAG8daa36264 [2023-03-31 23:53:07,967 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/684d038a1/87a43a58956a437582973e0b923fffc5 [2023-03-31 23:53:07,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:53:07,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:53:07,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:53:07,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:53:07,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:53:07,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:53:07" (1/1) ... [2023-03-31 23:53:07,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae6952a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:07, skipping insertion in model container [2023-03-31 23:53:07,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:53:07" (1/1) ... [2023-03-31 23:53:07,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:53:08,024 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:53:08,208 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_spec2_product15.cil.c[5831,5844] [2023-03-31 23:53:08,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:53:08,284 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:53:08,308 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_spec2_product15.cil.c[5831,5844] [2023-03-31 23:53:08,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:53:08,355 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:53:08,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08 WrapperNode [2023-03-31 23:53:08,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:53:08,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:53:08,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:53:08,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:53:08,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08" (1/1) ... [2023-03-31 23:53:08,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08" (1/1) ... [2023-03-31 23:53:08,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08" (1/1) ... [2023-03-31 23:53:08,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08" (1/1) ... [2023-03-31 23:53:08,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08" (1/1) ... [2023-03-31 23:53:08,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08" (1/1) ... [2023-03-31 23:53:08,399 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08" (1/1) ... [2023-03-31 23:53:08,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08" (1/1) ... [2023-03-31 23:53:08,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:53:08,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:53:08,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:53:08,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:53:08,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08" (1/1) ... [2023-03-31 23:53:08,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:53:08,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:53:08,491 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) [2023-03-31 23:53:08,492 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 [2023-03-31 23:53:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:53:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:53:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 23:53:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:53:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 23:53:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-03-31 23:53:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 23:53:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2023-03-31 23:53:08,523 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 23:53:08,524 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-03-31 23:53:08,525 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 23:53:08,526 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 23:53:08,526 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 23:53:08,526 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 23:53:08,526 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:53:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:53:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:53:08,526 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:53:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:53:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:53:08,527 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 23:53:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 23:53:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 23:53:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 23:53:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 23:53:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 23:53:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 23:53:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 23:53:08,528 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 23:53:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-03-31 23:53:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-03-31 23:53:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 23:53:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-03-31 23:53:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 23:53:08,529 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2023-03-31 23:53:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 23:53:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 23:53:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 23:53:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 23:53:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 23:53:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 23:53:08,530 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:53:08,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 23:53:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 23:53:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 23:53:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 23:53:08,532 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 23:53:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 23:53:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 23:53:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-03-31 23:53:08,533 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 23:53:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 23:53:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 23:53:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:53:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:53:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:53:08,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:53:08,699 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:53:08,701 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:53:09,153 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:53:09,234 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:53:09,235 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 23:53:09,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:53:09 BoogieIcfgContainer [2023-03-31 23:53:09,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:53:09,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:53:09,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:53:09,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:53:09,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:53:07" (1/3) ... [2023-03-31 23:53:09,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b8b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:53:09, skipping insertion in model container [2023-03-31 23:53:09,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:53:08" (2/3) ... [2023-03-31 23:53:09,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b8b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:53:09, skipping insertion in model container [2023-03-31 23:53:09,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:53:09" (3/3) ... [2023-03-31 23:53:09,242 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product15.cil.c [2023-03-31 23:53:09,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:53:09,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:53:09,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:53:09,293 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;@68e5ac83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:53:09,293 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:53:09,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 76 states have internal predecessors, (82), 44 states have call successors, (44), 26 states have call predecessors, (44), 26 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-03-31 23:53:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-31 23:53:09,305 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:09,306 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] [2023-03-31 23:53:09,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:09,310 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:09,310 INFO L85 PathProgramCache]: Analyzing trace with hash -459419284, now seen corresponding path program 1 times [2023-03-31 23:53:09,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:09,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839011560] [2023-03-31 23:53:09,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:09,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:09,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:09,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:09,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839011560] [2023-03-31 23:53:09,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839011560] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:09,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:09,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-31 23:53:09,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966154422] [2023-03-31 23:53:09,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:09,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-31 23:53:09,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:09,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-31 23:53:09,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-31 23:53:09,545 INFO L87 Difference]: Start difference. First operand has 137 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 76 states have internal predecessors, (82), 44 states have call successors, (44), 26 states have call predecessors, (44), 26 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:53:09,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:09,602 INFO L93 Difference]: Finished difference Result 190 states and 237 transitions. [2023-03-31 23:53:09,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-31 23:53:09,605 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 46 [2023-03-31 23:53:09,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:09,612 INFO L225 Difference]: With dead ends: 190 [2023-03-31 23:53:09,613 INFO L226 Difference]: Without dead ends: 97 [2023-03-31 23:53:09,616 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 [2023-03-31 23:53:09,620 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:09,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:53:09,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-03-31 23:53:09,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-03-31 23:53:09,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 50 states have (on average 1.26) internal successors, (63), 59 states have internal predecessors, (63), 28 states have call successors, (28), 23 states have call predecessors, (28), 18 states have return successors, (23), 21 states have call predecessors, (23), 23 states have call successors, (23) [2023-03-31 23:53:09,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 114 transitions. [2023-03-31 23:53:09,670 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 114 transitions. Word has length 46 [2023-03-31 23:53:09,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:09,671 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 114 transitions. [2023-03-31 23:53:09,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:53:09,671 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 114 transitions. [2023-03-31 23:53:09,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-03-31 23:53:09,673 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:09,673 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] [2023-03-31 23:53:09,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:53:09,674 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:09,674 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:09,674 INFO L85 PathProgramCache]: Analyzing trace with hash 748984603, now seen corresponding path program 1 times [2023-03-31 23:53:09,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:09,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472974837] [2023-03-31 23:53:09,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:09,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:09,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:09,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:09,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472974837] [2023-03-31 23:53:09,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472974837] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:09,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:09,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-31 23:53:09,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055296581] [2023-03-31 23:53:09,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:09,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 23:53:09,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:09,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 23:53:09,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-31 23:53:09,789 INFO L87 Difference]: Start difference. First operand 97 states and 114 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:53:09,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:09,830 INFO L93 Difference]: Finished difference Result 141 states and 165 transitions. [2023-03-31 23:53:09,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 23:53:09,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 47 [2023-03-31 23:53:09,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:09,832 INFO L225 Difference]: With dead ends: 141 [2023-03-31 23:53:09,832 INFO L226 Difference]: Without dead ends: 89 [2023-03-31 23:53:09,832 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 [2023-03-31 23:53:09,833 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 11 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:09,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 166 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:53:09,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-03-31 23:53:09,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-03-31 23:53:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 54 states have internal predecessors, (57), 25 states have call successors, (25), 22 states have call predecessors, (25), 18 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2023-03-31 23:53:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 103 transitions. [2023-03-31 23:53:09,841 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 103 transitions. Word has length 47 [2023-03-31 23:53:09,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:09,841 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 103 transitions. [2023-03-31 23:53:09,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 23:53:09,842 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 103 transitions. [2023-03-31 23:53:09,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-03-31 23:53:09,843 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:09,843 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] [2023-03-31 23:53:09,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 23:53:09,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:09,843 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:09,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2039537729, now seen corresponding path program 1 times [2023-03-31 23:53:09,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:09,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871601734] [2023-03-31 23:53:09,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:09,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:09,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:10,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:10,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:10,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871601734] [2023-03-31 23:53:10,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871601734] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:10,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:10,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:53:10,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025889431] [2023-03-31 23:53:10,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:10,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:53:10,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:10,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:53:10,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:53:10,101 INFO L87 Difference]: Start difference. First operand 89 states and 103 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 23:53:10,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:10,332 INFO L93 Difference]: Finished difference Result 262 states and 318 transitions. [2023-03-31 23:53:10,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:53:10,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 50 [2023-03-31 23:53:10,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:10,338 INFO L225 Difference]: With dead ends: 262 [2023-03-31 23:53:10,339 INFO L226 Difference]: Without dead ends: 198 [2023-03-31 23:53:10,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-03-31 23:53:10,347 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 156 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:10,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 470 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-03-31 23:53:10,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-03-31 23:53:10,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 190. [2023-03-31 23:53:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 103 states have (on average 1.3106796116504855) internal successors, (135), 121 states have internal predecessors, (135), 49 states have call successors, (49), 43 states have call predecessors, (49), 37 states have return successors, (46), 37 states have call predecessors, (46), 45 states have call successors, (46) [2023-03-31 23:53:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 230 transitions. [2023-03-31 23:53:10,380 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 230 transitions. Word has length 50 [2023-03-31 23:53:10,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:10,380 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 230 transitions. [2023-03-31 23:53:10,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-03-31 23:53:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 230 transitions. [2023-03-31 23:53:10,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-03-31 23:53:10,382 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:10,382 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] [2023-03-31 23:53:10,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 23:53:10,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:10,383 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:10,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1408215511, now seen corresponding path program 1 times [2023-03-31 23:53:10,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:10,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630123250] [2023-03-31 23:53:10,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:10,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:10,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:10,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630123250] [2023-03-31 23:53:10,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630123250] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:10,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:10,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 23:53:10,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100705328] [2023-03-31 23:53:10,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:10,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 23:53:10,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:10,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 23:53:10,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:53:10,574 INFO L87 Difference]: Start difference. First operand 190 states and 230 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 23:53:10,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:10,709 INFO L93 Difference]: Finished difference Result 502 states and 627 transitions. [2023-03-31 23:53:10,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:53:10,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 55 [2023-03-31 23:53:10,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:10,717 INFO L225 Difference]: With dead ends: 502 [2023-03-31 23:53:10,717 INFO L226 Difference]: Without dead ends: 337 [2023-03-31 23:53:10,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:53:10,726 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 61 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:10,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 380 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:53:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2023-03-31 23:53:10,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 325. [2023-03-31 23:53:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 180 states have (on average 1.3055555555555556) internal successors, (235), 212 states have internal predecessors, (235), 82 states have call successors, (82), 70 states have call predecessors, (82), 62 states have return successors, (80), 62 states have call predecessors, (80), 78 states have call successors, (80) [2023-03-31 23:53:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 397 transitions. [2023-03-31 23:53:10,758 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 397 transitions. Word has length 55 [2023-03-31 23:53:10,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:10,759 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 397 transitions. [2023-03-31 23:53:10,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-03-31 23:53:10,759 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 397 transitions. [2023-03-31 23:53:10,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-03-31 23:53:10,761 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:53:10,761 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] [2023-03-31 23:53:10,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 23:53:10,761 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:53:10,762 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:53:10,762 INFO L85 PathProgramCache]: Analyzing trace with hash 800601437, now seen corresponding path program 1 times [2023-03-31 23:53:10,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:53:10,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478533469] [2023-03-31 23:53:10,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:53:10,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:53:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:53:10,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:53:10,893 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:53:10,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478533469] [2023-03-31 23:53:10,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478533469] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:53:10,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:53:10,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 23:53:10,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277919805] [2023-03-31 23:53:10,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:53:10,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 23:53:10,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:53:10,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 23:53:10,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:53:10,896 INFO L87 Difference]: Start difference. First operand 325 states and 397 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 23:53:11,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:53:11,075 INFO L93 Difference]: Finished difference Result 553 states and 700 transitions. [2023-03-31 23:53:11,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:53:11,075 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 58 [2023-03-31 23:53:11,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:53:11,076 INFO L225 Difference]: With dead ends: 553 [2023-03-31 23:53:11,076 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:53:11,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-03-31 23:53:11,077 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 67 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:53:11,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 133 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:53:11,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:53:11,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:53:11,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 23:53:11,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:53:11,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2023-03-31 23:53:11,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:53:11,078 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:53:11,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 23:53:11,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:53:11,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:53:11,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:53:11,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 23:53:11,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:53:11,701 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-03-31 23:53:11,701 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-03-31 23:53:11,701 INFO L899 garLoopResultBuilder]: For program point L468(lines 468 472) no Hoare annotation was computed. [2023-03-31 23:53:11,701 INFO L899 garLoopResultBuilder]: For program point L462-2(lines 462 483) no Hoare annotation was computed. [2023-03-31 23:53:11,701 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 437 492) no Hoare annotation was computed. [2023-03-31 23:53:11,701 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 437 492) no Hoare annotation was computed. [2023-03-31 23:53:11,701 INFO L899 garLoopResultBuilder]: For program point L484(lines 461 485) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L899 garLoopResultBuilder]: For program point L545(lines 518 546) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L899 garLoopResultBuilder]: For program point L538(line 538) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L899 garLoopResultBuilder]: For program point L538-1(line 538) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 493 552) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L899 garLoopResultBuilder]: For program point L525(lines 525 529) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 493 552) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 493 552) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L899 garLoopResultBuilder]: For program point L519-2(lines 519 544) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 779 787) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 779 787) the Hoare annotation is: true [2023-03-31 23:53:11,702 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 901 923) no Hoare annotation was computed. [2023-03-31 23:53:11,702 INFO L895 garLoopResultBuilder]: At program point L913(line 913) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= main_~tmp~7 1))) [2023-03-31 23:53:11,703 INFO L895 garLoopResultBuilder]: At program point L913-1(line 913) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= main_~tmp~7 1))) [2023-03-31 23:53:11,703 INFO L899 garLoopResultBuilder]: For program point L911(lines 911 918) no Hoare annotation was computed. [2023-03-31 23:53:11,703 INFO L899 garLoopResultBuilder]: For program point L911-1(lines 911 918) no Hoare annotation was computed. [2023-03-31 23:53:11,703 INFO L899 garLoopResultBuilder]: For program point L909(line 909) no Hoare annotation was computed. [2023-03-31 23:53:11,703 INFO L895 garLoopResultBuilder]: At program point L908(line 908) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,703 INFO L895 garLoopResultBuilder]: At program point L907(line 907) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,703 INFO L895 garLoopResultBuilder]: At program point L907-1(line 907) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,703 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 901 923) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,703 INFO L899 garLoopResultBuilder]: For program point L865(line 865) no Hoare annotation was computed. [2023-03-31 23:53:11,703 INFO L899 garLoopResultBuilder]: For program point L864(line 864) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 859 882) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 859 882) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L877(line 877) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L876(line 876) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L875(line 875) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L874(line 874) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 859 882) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L873(line 873) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L872(line 872) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L871(line 871) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L870(line 870) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L869(line 869) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L868(line 868) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L867(line 867) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point L866(line 866) no Hoare annotation was computed. [2023-03-31 23:53:11,704 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 209 223) no Hoare annotation was computed. [2023-03-31 23:53:11,705 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 209 223) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= |old(~systemActive~0)| 0) .cse0 (not (= 0 ~systemActive~0))) (or .cse0 (= 1 ~systemActive~0) (not (= |old(~systemActive~0)| 1))) (or .cse0 (= ~pumpRunning~0 0)))) [2023-03-31 23:53:11,705 INFO L895 garLoopResultBuilder]: At program point L215(line 215) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-03-31 23:53:11,705 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 219) no Hoare annotation was computed. [2023-03-31 23:53:11,705 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 765 771) no Hoare annotation was computed. [2023-03-31 23:53:11,705 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 765 771) the Hoare annotation is: true [2023-03-31 23:53:11,705 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 704 749) no Hoare annotation was computed. [2023-03-31 23:53:11,705 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 704 749) no Hoare annotation was computed. [2023-03-31 23:53:11,705 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 95 119) no Hoare annotation was computed. [2023-03-31 23:53:11,705 INFO L895 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-03-31 23:53:11,705 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 95 119) no Hoare annotation was computed. [2023-03-31 23:53:11,705 INFO L895 garLoopResultBuilder]: At program point L109(line 109) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-03-31 23:53:11,705 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 95 119) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-03-31 23:53:11,705 INFO L895 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-03-31 23:53:11,705 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 111) no Hoare annotation was computed. [2023-03-31 23:53:11,706 INFO L895 garLoopResultBuilder]: At program point L101(line 101) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-03-31 23:53:11,706 INFO L899 garLoopResultBuilder]: For program point L101-1(line 101) no Hoare annotation was computed. [2023-03-31 23:53:11,706 INFO L899 garLoopResultBuilder]: For program point L99(lines 99 116) no Hoare annotation was computed. [2023-03-31 23:53:11,706 INFO L899 garLoopResultBuilder]: For program point L258-1(lines 258 264) no Hoare annotation was computed. [2023-03-31 23:53:11,706 INFO L895 garLoopResultBuilder]: At program point L283(lines 238 285) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,706 INFO L895 garLoopResultBuilder]: At program point L250(line 250) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,706 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 254) no Hoare annotation was computed. [2023-03-31 23:53:11,706 INFO L899 garLoopResultBuilder]: For program point L248-1(lines 248 254) no Hoare annotation was computed. [2023-03-31 23:53:11,706 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 228 293) no Hoare annotation was computed. [2023-03-31 23:53:11,706 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 228 293) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,706 INFO L895 garLoopResultBuilder]: At program point L286(lines 237 287) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,706 INFO L895 garLoopResultBuilder]: At program point L276(line 276) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,706 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 280) no Hoare annotation was computed. [2023-03-31 23:53:11,706 INFO L895 garLoopResultBuilder]: At program point L274-1(lines 268 281) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point L239(lines 238 285) no Hoare annotation was computed. [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 281) no Hoare annotation was computed. [2023-03-31 23:53:11,707 INFO L895 garLoopResultBuilder]: At program point L260(line 260) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= test_~splverifierCounter~0 0)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 228 293) no Hoare annotation was computed. [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 264) no Hoare annotation was computed. [2023-03-31 23:53:11,707 INFO L895 garLoopResultBuilder]: At program point L813(line 813) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 817) no Hoare annotation was computed. [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point L810(lines 810 820) no Hoare annotation was computed. [2023-03-31 23:53:11,707 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 798 826) the Hoare annotation is: true [2023-03-31 23:53:11,707 INFO L895 garLoopResultBuilder]: At program point L808(line 808) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0))) [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point L808-1(line 808) no Hoare annotation was computed. [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 823) no Hoare annotation was computed. [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point L806-1(lines 798 826) no Hoare annotation was computed. [2023-03-31 23:53:11,707 INFO L902 garLoopResultBuilder]: At program point L804(line 804) the Hoare annotation is: true [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__2EXIT(lines 798 826) no Hoare annotation was computed. [2023-03-31 23:53:11,707 INFO L899 garLoopResultBuilder]: For program point L804-1(line 804) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 343 365) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 343 365) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 790 797) the Hoare annotation is: true [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification2_spec__1EXIT(lines 790 797) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 128 144) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 128 144) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 128 144) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point L135(lines 135 141) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point L133-1(line 133) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 366 374) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 366 374) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 334 342) the Hoare annotation is: true [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 334 342) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2023-03-31 23:53:11,708 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 63 86) no Hoare annotation was computed. [2023-03-31 23:53:11,708 INFO L895 garLoopResultBuilder]: At program point L74(lines 74 80) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-03-31 23:53:11,709 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 63 86) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-03-31 23:53:11,709 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 63 86) no Hoare annotation was computed. [2023-03-31 23:53:11,709 INFO L895 garLoopResultBuilder]: At program point L69(line 69) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-03-31 23:53:11,709 INFO L899 garLoopResultBuilder]: For program point L67(lines 66 85) no Hoare annotation was computed. [2023-03-31 23:53:11,709 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 829 858) no Hoare annotation was computed. [2023-03-31 23:53:11,709 INFO L902 garLoopResultBuilder]: At program point L854(lines 829 858) the Hoare annotation is: true [2023-03-31 23:53:11,709 INFO L899 garLoopResultBuilder]: For program point L850(line 850) no Hoare annotation was computed. [2023-03-31 23:53:11,709 INFO L899 garLoopResultBuilder]: For program point L843(lines 843 847) no Hoare annotation was computed. [2023-03-31 23:53:11,709 INFO L902 garLoopResultBuilder]: At program point L843-1(lines 843 847) the Hoare annotation is: true [2023-03-31 23:53:11,709 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 829 858) the Hoare annotation is: true [2023-03-31 23:53:11,709 INFO L902 garLoopResultBuilder]: At program point L839-2(lines 839 853) the Hoare annotation is: true [2023-03-31 23:53:11,709 INFO L902 garLoopResultBuilder]: At program point L835(line 835) the Hoare annotation is: true [2023-03-31 23:53:11,709 INFO L899 garLoopResultBuilder]: For program point L835-1(line 835) no Hoare annotation was computed. [2023-03-31 23:53:11,709 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 298 309) no Hoare annotation was computed. [2023-03-31 23:53:11,709 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 298 309) the Hoare annotation is: true [2023-03-31 23:53:11,709 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 310 321) no Hoare annotation was computed. [2023-03-31 23:53:11,709 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 310 321) the Hoare annotation is: true [2023-03-31 23:53:11,710 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 376 383) the Hoare annotation is: true [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 380) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 376 383) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 772 778) the Hoare annotation is: true [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 772 778) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 87 93) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 87 93) the Hoare annotation is: true [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__baseEXIT(lines 120 127) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 120 127) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 164 172) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 164 172) the Hoare annotation is: true [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point L203-1(line 203) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 173 208) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 173 208) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 391 436) no Hoare annotation was computed. [2023-03-31 23:53:11,710 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 391 436) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L895 garLoopResultBuilder]: At program point L895(line 895) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 890 900) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 890 900) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) (not (= |old(~systemActive~0)| 1))) [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 890 900) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L902 garLoopResultBuilder]: At program point L158(line 158) the Hoare annotation is: true [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point L158-1(line 158) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 153 163) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 153 163) the Hoare annotation is: true [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 145 152) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 145 152) the Hoare annotation is: true [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 658 703) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 658 703) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point L605(lines 604 624) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point L636(line 636) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point L636-1(line 636) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 642) no Hoare annotation was computed. [2023-03-31 23:53:11,711 INFO L899 garLoopResultBuilder]: For program point L620(line 620) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point L620-1(line 620) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 555 657) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 555 657) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 583) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point L604-2(lines 604 624) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 555 657) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point L625(lines 603 626) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point L584(lines 584 600) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 755 764) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 755 764) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 322 333) the Hoare annotation is: true [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 322 333) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 883 889) no Hoare annotation was computed. [2023-03-31 23:53:11,712 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 883 889) the Hoare annotation is: true [2023-03-31 23:53:11,712 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:53:11,713 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2023-03-31 23:53:11,713 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:53:11,713 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:53:11,715 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-03-31 23:53:11,721 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:53:11,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:53:11 BoogieIcfgContainer [2023-03-31 23:53:11,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:53:11,735 INFO L158 Benchmark]: Toolchain (without parser) took 3764.53ms. Allocated memory is still 230.7MB. Free memory was 181.3MB in the beginning and 117.5MB in the end (delta: 63.8MB). Peak memory consumption was 100.1MB. Max. memory is 8.0GB. [2023-03-31 23:53:11,735 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:53:11,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.11ms. Allocated memory is still 230.7MB. Free memory was 181.3MB in the beginning and 162.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-03-31 23:53:11,736 INFO L158 Benchmark]: Boogie Preprocessor took 50.15ms. Allocated memory is still 230.7MB. Free memory was 162.9MB in the beginning and 159.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-03-31 23:53:11,736 INFO L158 Benchmark]: RCFGBuilder took 829.90ms. Allocated memory is still 230.7MB. Free memory was 159.3MB in the beginning and 188.6MB in the end (delta: -29.3MB). Peak memory consumption was 57.2MB. Max. memory is 8.0GB. [2023-03-31 23:53:11,736 INFO L158 Benchmark]: TraceAbstraction took 2496.48ms. Allocated memory is still 230.7MB. Free memory was 188.1MB in the beginning and 117.5MB in the end (delta: 70.6MB). Peak memory consumption was 105.9MB. Max. memory is 8.0GB. [2023-03-31 23:53:11,737 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 191.9MB. Free memory is still 136.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 384.11ms. Allocated memory is still 230.7MB. Free memory was 181.3MB in the beginning and 162.9MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.15ms. Allocated memory is still 230.7MB. Free memory was 162.9MB in the beginning and 159.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 829.90ms. Allocated memory is still 230.7MB. Free memory was 159.3MB in the beginning and 188.6MB in the end (delta: -29.3MB). Peak memory consumption was 57.2MB. Max. memory is 8.0GB. * TraceAbstraction took 2496.48ms. Allocated memory is still 230.7MB. Free memory was 188.1MB in the beginning and 117.5MB in the end (delta: 70.6MB). Peak memory consumption was 105.9MB. 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 - PositiveResult [Line: 380]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 180 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 295 mSDsluCounter, 1260 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 824 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 536 IncrementalHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 436 mSDtfsCounter, 536 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=325occurred in iteration=4, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 53 LocationsWithAnnotation, 432 PreInvPairs, 474 NumberOfFragments, 491 HoareAnnotationTreeSize, 432 FomulaSimplifications, 25 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 53 FomulaSimplificationsInter, 1971 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 256 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 251 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && splverifierCounter == 0) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-03-31 23:53:11,754 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...