/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 00:57:55,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 00:57:55,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 00:57:55,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 00:57:55,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 00:57:55,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 00:57:55,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 00:57:55,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 00:57:55,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 00:57:55,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 00:57:55,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 00:57:55,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 00:57:55,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 00:57:55,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 00:57:55,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 00:57:55,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 00:57:55,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 00:57:55,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 00:57:55,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 00:57:55,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 00:57:55,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 00:57:55,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 00:57:55,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 00:57:55,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 00:57:55,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 00:57:55,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 00:57:55,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 00:57:55,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 00:57:55,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 00:57:55,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 00:57:55,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 00:57:55,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 00:57:55,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 00:57:55,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 00:57:55,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 00:57:55,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 00:57:55,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 00:57:55,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 00:57:55,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 00:57:55,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 00:57:55,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 00:57:55,449 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 00:57:55,472 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 00:57:55,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 00:57:55,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 00:57:55,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 00:57:55,473 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 00:57:55,473 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 00:57:55,473 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 00:57:55,474 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 00:57:55,474 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 00:57:55,474 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 00:57:55,474 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 00:57:55,475 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 00:57:55,475 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 00:57:55,475 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 00:57:55,475 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 00:57:55,475 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 00:57:55,475 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 00:57:55,475 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 00:57:55,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 00:57:55,476 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 00:57:55,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 00:57:55,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 00:57:55,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 00:57:55,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 00:57:55,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 00:57:55,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 00:57:55,476 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 00:57:55,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 00:57:55,476 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 00:57:55,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 00:57:55,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 00:57:55,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 00:57:55,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 00:57:55,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 00:57:55,477 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 00:57:55,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 00:57:55,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 00:57:55,477 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 00:57:55,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 00:57:55,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 00:57:55,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 00:57:55,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 00:57:55,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 00:57:55,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 00:57:55,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 00:57:55,652 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 00:57:55,652 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 00:57:55,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2023-04-03 00:57:56,752 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 00:57:56,927 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 00:57:56,927 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2023-04-03 00:57:56,939 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30746593c/c31f875503124524aa01cd8076cb1590/FLAGeeaf643b4 [2023-04-03 00:57:56,949 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30746593c/c31f875503124524aa01cd8076cb1590 [2023-04-03 00:57:56,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 00:57:56,952 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 00:57:56,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 00:57:56,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 00:57:56,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 00:57:56,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 12:57:56" (1/1) ... [2023-04-03 00:57:56,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75a85cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:56, skipping insertion in model container [2023-04-03 00:57:56,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 12:57:56" (1/1) ... [2023-04-03 00:57:56,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 00:57:56,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 00:57:57,103 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_spec1_product19.cil.c[2044,2057] [2023-04-03 00:57:57,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 00:57:57,170 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 00:57:57,179 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_spec1_product19.cil.c[2044,2057] [2023-04-03 00:57:57,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 00:57:57,258 INFO L208 MainTranslator]: Completed translation [2023-04-03 00:57:57,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57 WrapperNode [2023-04-03 00:57:57,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 00:57:57,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 00:57:57,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 00:57:57,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 00:57:57,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57" (1/1) ... [2023-04-03 00:57:57,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57" (1/1) ... [2023-04-03 00:57:57,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57" (1/1) ... [2023-04-03 00:57:57,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57" (1/1) ... [2023-04-03 00:57:57,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57" (1/1) ... [2023-04-03 00:57:57,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57" (1/1) ... [2023-04-03 00:57:57,320 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57" (1/1) ... [2023-04-03 00:57:57,338 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57" (1/1) ... [2023-04-03 00:57:57,342 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 00:57:57,343 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 00:57:57,343 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 00:57:57,343 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 00:57:57,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57" (1/1) ... [2023-04-03 00:57:57,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 00:57:57,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 00:57:57,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 00:57:57,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 00:57:57,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 00:57:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 00:57:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-03 00:57:57,412 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 00:57:57,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-03 00:57:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-03 00:57:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-03 00:57:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-03 00:57:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-03 00:57:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-03 00:57:57,416 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-03 00:57:57,417 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-03 00:57:57,418 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-03 00:57:57,419 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-03 00:57:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 00:57:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 00:57:57,419 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 00:57:57,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 00:57:57,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 00:57:57,433 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-03 00:57:57,434 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-03 00:57:57,434 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-03 00:57:57,434 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-03 00:57:57,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-03 00:57:57,434 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-03 00:57:57,434 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-03 00:57:57,435 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-03 00:57:57,435 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-03 00:57:57,435 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-03 00:57:57,435 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-03 00:57:57,435 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 00:57:57,436 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 00:57:57,436 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-03 00:57:57,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 00:57:57,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 00:57:57,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 00:57:57,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-03 00:57:57,438 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-03 00:57:57,439 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 00:57:57,439 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-03 00:57:57,439 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-03 00:57:57,439 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-03 00:57:57,439 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-03 00:57:57,439 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-03 00:57:57,440 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 00:57:57,440 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-03 00:57:57,440 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-03 00:57:57,440 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-03 00:57:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-03 00:57:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-03 00:57:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-03 00:57:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-03 00:57:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 00:57:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 00:57:57,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 00:57:57,634 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 00:57:57,636 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 00:57:58,090 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 00:57:58,213 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 00:57:58,213 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 00:57:58,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 12:57:58 BoogieIcfgContainer [2023-04-03 00:57:58,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 00:57:58,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 00:57:58,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 00:57:58,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 00:57:58,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 12:57:56" (1/3) ... [2023-04-03 00:57:58,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369e3cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 12:57:58, skipping insertion in model container [2023-04-03 00:57:58,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 12:57:57" (2/3) ... [2023-04-03 00:57:58,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369e3cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 12:57:58, skipping insertion in model container [2023-04-03 00:57:58,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 12:57:58" (3/3) ... [2023-04-03 00:57:58,226 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product19.cil.c [2023-04-03 00:57:58,238 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 00:57:58,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 00:57:58,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 00:57:58,289 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;@581e4319, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 00:57:58,290 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 00:57:58,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 71 states have internal predecessors, (76), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) [2023-04-03 00:57:58,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 00:57:58,299 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:57:58,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:57:58,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:57:58,303 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:57:58,303 INFO L85 PathProgramCache]: Analyzing trace with hash 721098008, now seen corresponding path program 1 times [2023-04-03 00:57:58,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:57:58,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467488427] [2023-04-03 00:57:58,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:57:58,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:57:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:57:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:57:58,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:57:58,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467488427] [2023-04-03 00:57:58,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467488427] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:57:58,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:57:58,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 00:57:58,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532105863] [2023-04-03 00:57:58,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:57:58,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 00:57:58,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:57:58,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 00:57:58,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 00:57:58,520 INFO L87 Difference]: Start difference. First operand has 130 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 71 states have internal predecessors, (76), 42 states have call successors, (42), 25 states have call predecessors, (42), 25 states have return successors, (42), 40 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:57:58,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:57:58,583 INFO L93 Difference]: Finished difference Result 189 states and 232 transitions. [2023-04-03 00:57:58,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 00:57:58,587 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-03 00:57:58,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:57:58,593 INFO L225 Difference]: With dead ends: 189 [2023-04-03 00:57:58,593 INFO L226 Difference]: Without dead ends: 95 [2023-04-03 00:57:58,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 00:57:58,601 INFO L413 NwaCegarLoop]: 107 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, 107 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 [2023-04-03 00:57:58,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 00:57:58,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-04-03 00:57:58,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-04-03 00:57:58,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 58 states have internal predecessors, (61), 27 states have call successors, (27), 23 states have call predecessors, (27), 18 states have return successors, (22), 20 states have call predecessors, (22), 22 states have call successors, (22) [2023-04-03 00:57:58,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2023-04-03 00:57:58,647 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 110 transitions. Word has length 42 [2023-04-03 00:57:58,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:57:58,647 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 110 transitions. [2023-04-03 00:57:58,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:57:58,649 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 110 transitions. [2023-04-03 00:57:58,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 00:57:58,652 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:57:58,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 00:57:58,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 00:57:58,652 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:57:58,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:57:58,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2095000290, now seen corresponding path program 1 times [2023-04-03 00:57:58,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:57:58,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488691611] [2023-04-03 00:57:58,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:57:58,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:57:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:57:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:57:58,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:57:58,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488691611] [2023-04-03 00:57:58,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488691611] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:57:58,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:57:58,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 00:57:58,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209357701] [2023-04-03 00:57:58,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:57:58,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 00:57:58,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:57:58,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 00:57:58,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:57:58,787 INFO L87 Difference]: Start difference. First operand 95 states and 110 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:57:58,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:57:58,824 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2023-04-03 00:57:58,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 00:57:58,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-03 00:57:58,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:57:58,826 INFO L225 Difference]: With dead ends: 140 [2023-04-03 00:57:58,826 INFO L226 Difference]: Without dead ends: 87 [2023-04-03 00:57:58,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 00:57:58,827 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 11 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 158 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 [2023-04-03 00:57:58,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 158 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-03 00:57:58,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-04-03 00:57:58,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2023-04-03 00:57:58,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 44 states have (on average 1.25) internal successors, (55), 53 states have internal predecessors, (55), 24 states have call successors, (24), 22 states have call predecessors, (24), 18 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2023-04-03 00:57:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2023-04-03 00:57:58,840 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 43 [2023-04-03 00:57:58,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:57:58,840 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2023-04-03 00:57:58,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-03 00:57:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2023-04-03 00:57:58,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-03 00:57:58,847 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:57:58,847 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] [2023-04-03 00:57:58,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 00:57:58,848 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:57:58,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:57:58,848 INFO L85 PathProgramCache]: Analyzing trace with hash -388581172, now seen corresponding path program 1 times [2023-04-03 00:57:58,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:57:58,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628472468] [2023-04-03 00:57:58,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:57:58,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:57:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:57:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:57:59,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:57:59,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628472468] [2023-04-03 00:57:59,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628472468] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:57:59,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:57:59,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 00:57:59,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109565917] [2023-04-03 00:57:59,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:57:59,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 00:57:59,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:57:59,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 00:57:59,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 00:57:59,081 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 00:57:59,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:57:59,287 INFO L93 Difference]: Finished difference Result 261 states and 310 transitions. [2023-04-03 00:57:59,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 00:57:59,288 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 46 [2023-04-03 00:57:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:57:59,290 INFO L225 Difference]: With dead ends: 261 [2023-04-03 00:57:59,290 INFO L226 Difference]: Without dead ends: 196 [2023-04-03 00:57:59,291 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 [2023-04-03 00:57:59,292 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 151 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 00:57:59,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 444 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 00:57:59,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-04-03 00:57:59,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 188. [2023-04-03 00:57:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 119 states have internal predecessors, (130), 48 states have call successors, (48), 44 states have call predecessors, (48), 38 states have return successors, (45), 36 states have call predecessors, (45), 44 states have call successors, (45) [2023-04-03 00:57:59,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 223 transitions. [2023-04-03 00:57:59,327 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 223 transitions. Word has length 46 [2023-04-03 00:57:59,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:57:59,327 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 223 transitions. [2023-04-03 00:57:59,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-03 00:57:59,328 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 223 transitions. [2023-04-03 00:57:59,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-03 00:57:59,328 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:57:59,329 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] [2023-04-03 00:57:59,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 00:57:59,329 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:57:59,329 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:57:59,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1429099679, now seen corresponding path program 1 times [2023-04-03 00:57:59,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:57:59,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981939295] [2023-04-03 00:57:59,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:57:59,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:57:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:57:59,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:57:59,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:57:59,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981939295] [2023-04-03 00:57:59,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981939295] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:57:59,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:57:59,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 00:57:59,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454037315] [2023-04-03 00:57:59,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:57:59,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 00:57:59,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:57:59,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 00:57:59,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 00:57:59,458 INFO L87 Difference]: Start difference. First operand 188 states and 223 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-03 00:57:59,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:57:59,581 INFO L93 Difference]: Finished difference Result 505 states and 618 transitions. [2023-04-03 00:57:59,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 00:57:59,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51 [2023-04-03 00:57:59,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:57:59,588 INFO L225 Difference]: With dead ends: 505 [2023-04-03 00:57:59,588 INFO L226 Difference]: Without dead ends: 339 [2023-04-03 00:57:59,591 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 [2023-04-03 00:57:59,598 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 00:57:59,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 365 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 00:57:59,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2023-04-03 00:57:59,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 327. [2023-04-03 00:57:59,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 180 states have (on average 1.288888888888889) internal successors, (232), 212 states have internal predecessors, (232), 81 states have call successors, (81), 73 states have call predecessors, (81), 65 states have return successors, (79), 61 states have call predecessors, (79), 77 states have call successors, (79) [2023-04-03 00:57:59,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 392 transitions. [2023-04-03 00:57:59,658 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 392 transitions. Word has length 51 [2023-04-03 00:57:59,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:57:59,660 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 392 transitions. [2023-04-03 00:57:59,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-04-03 00:57:59,660 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 392 transitions. [2023-04-03 00:57:59,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-03 00:57:59,662 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 00:57:59,663 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] [2023-04-03 00:57:59,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 00:57:59,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 00:57:59,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 00:57:59,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1517666051, now seen corresponding path program 1 times [2023-04-03 00:57:59,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 00:57:59,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039937570] [2023-04-03 00:57:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 00:57:59,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 00:57:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 00:57:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 00:57:59,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 00:57:59,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039937570] [2023-04-03 00:57:59,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039937570] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 00:57:59,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 00:57:59,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 00:57:59,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668426730] [2023-04-03 00:57:59,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 00:57:59,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 00:57:59,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 00:57:59,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 00:57:59,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-03 00:57:59,835 INFO L87 Difference]: Start difference. First operand 327 states and 392 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 00:57:59,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 00:57:59,984 INFO L93 Difference]: Finished difference Result 555 states and 692 transitions. [2023-04-03 00:57:59,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 00:57:59,986 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 54 [2023-04-03 00:57:59,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 00:57:59,986 INFO L225 Difference]: With dead ends: 555 [2023-04-03 00:57:59,986 INFO L226 Difference]: Without dead ends: 0 [2023-04-03 00:57:59,988 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 [2023-04-03 00:57:59,988 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 65 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-03 00:57:59,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 130 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-03 00:57:59,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-03 00:57:59,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-03 00:57:59,989 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) [2023-04-03 00:57:59,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-03 00:57:59,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2023-04-03 00:57:59,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 00:57:59,989 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-03 00:57:59,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 3 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-04-03 00:57:59,990 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-03 00:57:59,990 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-03 00:57:59,992 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-03 00:57:59,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 00:57:59,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-03 00:58:00,620 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-03 00:58:00,621 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-03 00:58:00,621 INFO L899 garLoopResultBuilder]: For program point L282(lines 259 283) no Hoare annotation was computed. [2023-04-03 00:58:00,621 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 270) no Hoare annotation was computed. [2023-04-03 00:58:00,621 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 235 290) no Hoare annotation was computed. [2023-04-03 00:58:00,621 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 235 290) no Hoare annotation was computed. [2023-04-03 00:58:00,621 INFO L899 garLoopResultBuilder]: For program point L260-2(lines 260 281) no Hoare annotation was computed. [2023-04-03 00:58:00,621 INFO L899 garLoopResultBuilder]: For program point L317-2(lines 317 342) no Hoare annotation was computed. [2023-04-03 00:58:00,621 INFO L899 garLoopResultBuilder]: For program point L343(lines 316 344) no Hoare annotation was computed. [2023-04-03 00:58:00,621 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 291 350) no Hoare annotation was computed. [2023-04-03 00:58:00,621 INFO L899 garLoopResultBuilder]: For program point L336(line 336) no Hoare annotation was computed. [2023-04-03 00:58:00,622 INFO L899 garLoopResultBuilder]: For program point L336-1(line 336) no Hoare annotation was computed. [2023-04-03 00:58:00,622 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 291 350) no Hoare annotation was computed. [2023-04-03 00:58:00,622 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 291 350) no Hoare annotation was computed. [2023-04-03 00:58:00,622 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2023-04-03 00:58:00,622 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 577 585) no Hoare annotation was computed. [2023-04-03 00:58:00,622 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 577 585) the Hoare annotation is: true [2023-04-03 00:58:00,622 INFO L895 garLoopResultBuilder]: At program point L674-1(line 674) 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~4 1))) [2023-04-03 00:58:00,622 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 679) no Hoare annotation was computed. [2023-04-03 00:58:00,622 INFO L899 garLoopResultBuilder]: For program point L672-1(lines 672 679) no Hoare annotation was computed. [2023-04-03 00:58:00,623 INFO L899 garLoopResultBuilder]: For program point L670(line 670) no Hoare annotation was computed. [2023-04-03 00:58:00,623 INFO L895 garLoopResultBuilder]: At program point L669(line 669) 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))) [2023-04-03 00:58:00,623 INFO L895 garLoopResultBuilder]: At program point L668(line 668) 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))) [2023-04-03 00:58:00,623 INFO L895 garLoopResultBuilder]: At program point L668-1(line 668) 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))) [2023-04-03 00:58:00,623 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 662 684) no Hoare annotation was computed. [2023-04-03 00:58:00,623 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 662 684) 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))) [2023-04-03 00:58:00,623 INFO L895 garLoopResultBuilder]: At program point L674(line 674) 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~4 1))) [2023-04-03 00:58:00,623 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 620 643) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L638(line 638) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L637(line 637) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L636(line 636) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 620 643) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L635(line 635) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L634(line 634) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L633(line 633) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L632(line 632) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L631(line 631) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L630(line 630) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L629(line 629) no Hoare annotation was computed. [2023-04-03 00:58:00,624 INFO L899 garLoopResultBuilder]: For program point L628(line 628) no Hoare annotation was computed. [2023-04-03 00:58:00,625 INFO L899 garLoopResultBuilder]: For program point L627(line 627) no Hoare annotation was computed. [2023-04-03 00:58:00,625 INFO L899 garLoopResultBuilder]: For program point L626(line 626) no Hoare annotation was computed. [2023-04-03 00:58:00,625 INFO L899 garLoopResultBuilder]: For program point L625(line 625) no Hoare annotation was computed. [2023-04-03 00:58:00,625 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 620 643) no Hoare annotation was computed. [2023-04-03 00:58:00,625 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 840 854) no Hoare annotation was computed. [2023-04-03 00:58:00,625 INFO L895 garLoopResultBuilder]: At program point L846(line 846) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-04-03 00:58:00,625 INFO L899 garLoopResultBuilder]: For program point L844(lines 844 850) no Hoare annotation was computed. [2023-04-03 00:58:00,625 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 840 854) 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)))) [2023-04-03 00:58:00,625 INFO L902 garLoopResultBuilder]: At program point L828(line 828) the Hoare annotation is: true [2023-04-03 00:58:00,625 INFO L899 garLoopResultBuilder]: For program point L828-1(line 828) no Hoare annotation was computed. [2023-04-03 00:58:00,625 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 821 839) the Hoare annotation is: true [2023-04-03 00:58:00,625 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 821 839) no Hoare annotation was computed. [2023-04-03 00:58:00,625 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 563 569) no Hoare annotation was computed. [2023-04-03 00:58:00,626 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 563 569) the Hoare annotation is: true [2023-04-03 00:58:00,626 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 502 547) no Hoare annotation was computed. [2023-04-03 00:58:00,626 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 502 547) no Hoare annotation was computed. [2023-04-03 00:58:00,626 INFO L895 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-03 00:58:00,626 INFO L899 garLoopResultBuilder]: For program point L732(lines 732 740) no Hoare annotation was computed. [2023-04-03 00:58:00,626 INFO L895 garLoopResultBuilder]: At program point L730(line 730) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-03 00:58:00,626 INFO L899 garLoopResultBuilder]: For program point L730-1(line 730) no Hoare annotation was computed. [2023-04-03 00:58:00,626 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 745) no Hoare annotation was computed. [2023-04-03 00:58:00,626 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 724 748) no Hoare annotation was computed. [2023-04-03 00:58:00,626 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 724 748) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-04-03 00:58:00,626 INFO L895 garLoopResultBuilder]: At program point L743(line 743) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-04-03 00:58:00,626 INFO L899 garLoopResultBuilder]: For program point L743-1(lines 724 748) no Hoare annotation was computed. [2023-04-03 00:58:00,626 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-03 00:58:00,627 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 716 722) no Hoare annotation was computed. [2023-04-03 00:58:00,627 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 716 722) the Hoare annotation is: true [2023-04-03 00:58:00,627 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 909) no Hoare annotation was computed. [2023-04-03 00:58:00,627 INFO L895 garLoopResultBuilder]: At program point L888(line 888) 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))) [2023-04-03 00:58:00,627 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 856 921) no Hoare annotation was computed. [2023-04-03 00:58:00,627 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 892) no Hoare annotation was computed. [2023-04-03 00:58:00,627 INFO L899 garLoopResultBuilder]: For program point L886-1(lines 886 892) no Hoare annotation was computed. [2023-04-03 00:58:00,627 INFO L895 garLoopResultBuilder]: At program point L911(lines 866 913) 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))) [2023-04-03 00:58:00,628 INFO L895 garLoopResultBuilder]: At program point L878(line 878) 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))) [2023-04-03 00:58:00,628 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 882) no Hoare annotation was computed. [2023-04-03 00:58:00,628 INFO L899 garLoopResultBuilder]: For program point L876-1(lines 876 882) no Hoare annotation was computed. [2023-04-03 00:58:00,628 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 856 921) 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))) [2023-04-03 00:58:00,628 INFO L895 garLoopResultBuilder]: At program point L914(lines 865 915) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-03 00:58:00,628 INFO L895 garLoopResultBuilder]: At program point L904(line 904) 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))) [2023-04-03 00:58:00,628 INFO L899 garLoopResultBuilder]: For program point L902(lines 902 908) no Hoare annotation was computed. [2023-04-03 00:58:00,633 INFO L895 garLoopResultBuilder]: At program point L902-1(lines 896 909) 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))) [2023-04-03 00:58:00,633 INFO L899 garLoopResultBuilder]: For program point L867(lines 866 913) no Hoare annotation was computed. [2023-04-03 00:58:00,633 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 856 921) no Hoare annotation was computed. [2023-04-03 00:58:00,633 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 173 181) the Hoare annotation is: true [2023-04-03 00:58:00,633 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 173 181) no Hoare annotation was computed. [2023-04-03 00:58:00,633 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 141 163) no Hoare annotation was computed. [2023-04-03 00:58:00,633 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 141 163) no Hoare annotation was computed. [2023-04-03 00:58:00,634 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 749 756) no Hoare annotation was computed. [2023-04-03 00:58:00,634 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 749 756) no Hoare annotation was computed. [2023-04-03 00:58:00,634 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 164 172) no Hoare annotation was computed. [2023-04-03 00:58:00,634 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 164 172) no Hoare annotation was computed. [2023-04-03 00:58:00,635 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 132 140) the Hoare annotation is: true [2023-04-03 00:58:00,635 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 132 140) no Hoare annotation was computed. [2023-04-03 00:58:00,635 INFO L895 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2023-04-03 00:58:00,635 INFO L895 garLoopResultBuilder]: At program point L703(lines 703 709) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-04-03 00:58:00,635 INFO L895 garLoopResultBuilder]: At program point L698(line 698) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-04-03 00:58:00,635 INFO L899 garLoopResultBuilder]: For program point L696(lines 695 714) no Hoare annotation was computed. [2023-04-03 00:58:00,635 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 692 715) no Hoare annotation was computed. [2023-04-03 00:58:00,635 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 692 715) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-04-03 00:58:00,635 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 692 715) no Hoare annotation was computed. [2023-04-03 00:58:00,635 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 589 618) no Hoare annotation was computed. [2023-04-03 00:58:00,636 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2023-04-03 00:58:00,636 INFO L902 garLoopResultBuilder]: At program point L603-1(lines 603 607) the Hoare annotation is: true [2023-04-03 00:58:00,636 INFO L902 garLoopResultBuilder]: At program point L599-2(lines 599 613) the Hoare annotation is: true [2023-04-03 00:58:00,636 INFO L902 garLoopResultBuilder]: At program point L595(line 595) the Hoare annotation is: true [2023-04-03 00:58:00,636 INFO L899 garLoopResultBuilder]: For program point L595-1(line 595) no Hoare annotation was computed. [2023-04-03 00:58:00,636 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 589 618) the Hoare annotation is: true [2023-04-03 00:58:00,636 INFO L902 garLoopResultBuilder]: At program point L614(lines 589 618) the Hoare annotation is: true [2023-04-03 00:58:00,637 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2023-04-03 00:58:00,637 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 96 107) no Hoare annotation was computed. [2023-04-03 00:58:00,637 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 96 107) the Hoare annotation is: true [2023-04-03 00:58:00,637 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 108 119) no Hoare annotation was computed. [2023-04-03 00:58:00,637 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 108 119) the Hoare annotation is: true [2023-04-03 00:58:00,637 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 79 86) the Hoare annotation is: true [2023-04-03 00:58:00,637 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2023-04-03 00:58:00,638 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 79 86) no Hoare annotation was computed. [2023-04-03 00:58:00,638 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 570 576) the Hoare annotation is: true [2023-04-03 00:58:00,638 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 570 576) no Hoare annotation was computed. [2023-04-03 00:58:00,638 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 776 784) no Hoare annotation was computed. [2023-04-03 00:58:00,639 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 776 784) the Hoare annotation is: true [2023-04-03 00:58:00,639 INFO L899 garLoopResultBuilder]: For program point L815(line 815) no Hoare annotation was computed. [2023-04-03 00:58:00,639 INFO L899 garLoopResultBuilder]: For program point L815-1(line 815) no Hoare annotation was computed. [2023-04-03 00:58:00,639 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 785 820) no Hoare annotation was computed. [2023-04-03 00:58:00,639 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 785 820) no Hoare annotation was computed. [2023-04-03 00:58:00,639 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 189 234) no Hoare annotation was computed. [2023-04-03 00:58:00,639 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 189 234) no Hoare annotation was computed. [2023-04-03 00:58:00,639 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 652 661) no Hoare annotation was computed. [2023-04-03 00:58:00,640 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 652 661) 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))) [2023-04-03 00:58:00,640 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 652 661) no Hoare annotation was computed. [2023-04-03 00:58:00,640 INFO L899 garLoopResultBuilder]: For program point L770-1(line 770) no Hoare annotation was computed. [2023-04-03 00:58:00,640 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 765 775) no Hoare annotation was computed. [2023-04-03 00:58:00,640 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 765 775) no Hoare annotation was computed. [2023-04-03 00:58:00,640 INFO L899 garLoopResultBuilder]: For program point L770(line 770) no Hoare annotation was computed. [2023-04-03 00:58:00,641 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 757 764) no Hoare annotation was computed. [2023-04-03 00:58:00,641 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 757 764) the Hoare annotation is: true [2023-04-03 00:58:00,641 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 456 501) no Hoare annotation was computed. [2023-04-03 00:58:00,641 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 456 501) no Hoare annotation was computed. [2023-04-03 00:58:00,641 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 398) no Hoare annotation was computed. [2023-04-03 00:58:00,641 INFO L899 garLoopResultBuilder]: For program point L403(lines 402 422) no Hoare annotation was computed. [2023-04-03 00:58:00,641 INFO L899 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2023-04-03 00:58:00,641 INFO L899 garLoopResultBuilder]: For program point L434-1(line 434) no Hoare annotation was computed. [2023-04-03 00:58:00,641 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 440) no Hoare annotation was computed. [2023-04-03 00:58:00,642 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 353 455) no Hoare annotation was computed. [2023-04-03 00:58:00,642 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 353 455) no Hoare annotation was computed. [2023-04-03 00:58:00,642 INFO L899 garLoopResultBuilder]: For program point L418(line 418) no Hoare annotation was computed. [2023-04-03 00:58:00,642 INFO L899 garLoopResultBuilder]: For program point L418-1(line 418) no Hoare annotation was computed. [2023-04-03 00:58:00,642 INFO L899 garLoopResultBuilder]: For program point L377(lines 377 381) no Hoare annotation was computed. [2023-04-03 00:58:00,642 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 353 455) no Hoare annotation was computed. [2023-04-03 00:58:00,642 INFO L899 garLoopResultBuilder]: For program point L402-2(lines 402 422) no Hoare annotation was computed. [2023-04-03 00:58:00,642 INFO L899 garLoopResultBuilder]: For program point L423(lines 401 424) no Hoare annotation was computed. [2023-04-03 00:58:00,643 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 553 562) no Hoare annotation was computed. [2023-04-03 00:58:00,643 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 553 562) no Hoare annotation was computed. [2023-04-03 00:58:00,643 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-04-03 00:58:00,644 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-03 00:58:00,644 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 120 131) the Hoare annotation is: true [2023-04-03 00:58:00,644 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 120 131) no Hoare annotation was computed. [2023-04-03 00:58:00,644 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-03 00:58:00,644 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-03 00:58:00,644 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 644 650) no Hoare annotation was computed. [2023-04-03 00:58:00,644 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 644 650) the Hoare annotation is: true [2023-04-03 00:58:00,644 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-03 00:58:00,644 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2023-04-03 00:58:00,644 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-03 00:58:00,644 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-03 00:58:00,644 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2023-04-03 00:58:00,645 INFO L895 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0))) [2023-04-03 00:58:00,645 INFO L899 garLoopResultBuilder]: For program point L63-1(line 63) no Hoare annotation was computed. [2023-04-03 00:58:00,645 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed. [2023-04-03 00:58:00,646 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 53 77) no Hoare annotation was computed. [2023-04-03 00:58:00,647 INFO L902 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: true [2023-04-03 00:58:00,651 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-04-03 00:58:00,651 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification1_spec__1EXIT(lines 53 77) no Hoare annotation was computed. [2023-04-03 00:58:00,651 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 53 77) the Hoare annotation is: true [2023-04-03 00:58:00,651 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2023-04-03 00:58:00,666 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-03 00:58:00,668 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-03 00:58:00,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.04 12:58:00 BoogieIcfgContainer [2023-04-03 00:58:00,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-03 00:58:00,677 INFO L158 Benchmark]: Toolchain (without parser) took 3725.03ms. Allocated memory is still 300.9MB. Free memory was 247.7MB in the beginning and 131.9MB in the end (delta: 115.8MB). Peak memory consumption was 115.3MB. Max. memory is 8.0GB. [2023-04-03 00:58:00,677 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 172.0MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-03 00:58:00,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 305.34ms. Allocated memory is still 300.9MB. Free memory was 247.7MB in the beginning and 229.4MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-04-03 00:58:00,678 INFO L158 Benchmark]: Boogie Preprocessor took 82.80ms. Allocated memory is still 300.9MB. Free memory was 229.4MB in the beginning and 225.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-04-03 00:58:00,678 INFO L158 Benchmark]: RCFGBuilder took 874.09ms. Allocated memory is still 300.9MB. Free memory was 225.7MB in the beginning and 168.0MB in the end (delta: 57.7MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. [2023-04-03 00:58:00,678 INFO L158 Benchmark]: TraceAbstraction took 2457.41ms. Allocated memory is still 300.9MB. Free memory was 167.0MB in the beginning and 131.9MB in the end (delta: 35.1MB). Peak memory consumption was 34.5MB. Max. memory is 8.0GB. [2023-04-03 00:58:00,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 172.0MB. Free memory is still 120.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 305.34ms. Allocated memory is still 300.9MB. Free memory was 247.7MB in the beginning and 229.4MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 82.80ms. Allocated memory is still 300.9MB. Free memory was 229.4MB in the beginning and 225.7MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 874.09ms. Allocated memory is still 300.9MB. Free memory was 225.7MB in the beginning and 168.0MB in the end (delta: 57.7MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. * TraceAbstraction took 2457.41ms. Allocated memory is still 300.9MB. Free memory was 167.0MB in the beginning and 131.9MB in the end (delta: 35.1MB). Peak memory consumption was 34.5MB. 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: 83]: 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, 175 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, 295 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 288 mSDsluCounter, 1204 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 787 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 526 IncrementalHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 417 mSDtfsCounter, 526 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=327occurred 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, 52 LocationsWithAnnotation, 430 PreInvPairs, 472 NumberOfFragments, 468 HoareAnnotationTreeSize, 430 FomulaSimplifications, 25 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 52 FomulaSimplificationsInter, 1946 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 236 NumberOfCodeBlocks, 236 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 231 ConstructedInterpolants, 0 QuantifiedInterpolants, 429 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: 865]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && splverifierCounter == 0) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-04-03 00:58:00,710 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...