/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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 05:54:46,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 05:54:46,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 05:54:46,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 05:54:46,963 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 05:54:46,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 05:54:46,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 05:54:46,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 05:54:46,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 05:54:46,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 05:54:46,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 05:54:46,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 05:54:46,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 05:54:46,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 05:54:46,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 05:54:46,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 05:54:46,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 05:54:46,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 05:54:46,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 05:54:46,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 05:54:46,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 05:54:46,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 05:54:46,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 05:54:46,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 05:54:46,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 05:54:46,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 05:54:46,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 05:54:46,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 05:54:46,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 05:54:46,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 05:54:46,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 05:54:46,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 05:54:47,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 05:54:47,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 05:54:47,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 05:54:47,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 05:54:47,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 05:54:47,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 05:54:47,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 05:54:47,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 05:54:47,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 05:54:47,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 05:54:47,033 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 05:54:47,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 05:54:47,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 05:54:47,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 05:54:47,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 05:54:47,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 05:54:47,035 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 05:54:47,035 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 05:54:47,035 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 05:54:47,035 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 05:54:47,036 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 05:54:47,036 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 05:54:47,036 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 05:54:47,036 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 05:54:47,036 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 05:54:47,036 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 05:54:47,037 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 05:54:47,037 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 05:54:47,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 05:54:47,037 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 05:54:47,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 05:54:47,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 05:54:47,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 05:54:47,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 05:54:47,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 05:54:47,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 05:54:47,038 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 05:54:47,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 05:54:47,038 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 05:54:47,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 05:54:47,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 05:54:47,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 05:54:47,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:54:47,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 05:54:47,039 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 05:54:47,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 05:54:47,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 05:54:47,039 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 05:54:47,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 05:54:47,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 05:54:47,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 05:54:47,040 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 05:54:47,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 05:54:47,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 05:54:47,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 05:54:47,385 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 05:54:47,386 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 05:54:47,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c [2023-04-01 05:54:48,360 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 05:54:48,741 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 05:54:48,742 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c [2023-04-01 05:54:48,759 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c6f7a0a8/131503cfd7134eb79efce3a0a3052ad1/FLAGbc4810b94 [2023-04-01 05:54:48,777 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c6f7a0a8/131503cfd7134eb79efce3a0a3052ad1 [2023-04-01 05:54:48,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 05:54:48,781 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 05:54:48,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 05:54:48,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 05:54:48,807 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 05:54:48,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:54:48" (1/1) ... [2023-04-01 05:54:48,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0e6c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:48, skipping insertion in model container [2023-04-01 05:54:48,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:54:48" (1/1) ... [2023-04-01 05:54:48,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 05:54:48,884 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 05:54:49,024 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_product28.cil.c[1605,1618] [2023-04-01 05:54:49,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:54:49,204 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 05:54:49,226 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_product28.cil.c[1605,1618] [2023-04-01 05:54:49,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:54:49,315 INFO L208 MainTranslator]: Completed translation [2023-04-01 05:54:49,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49 WrapperNode [2023-04-01 05:54:49,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 05:54:49,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 05:54:49,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 05:54:49,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 05:54:49,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49" (1/1) ... [2023-04-01 05:54:49,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49" (1/1) ... [2023-04-01 05:54:49,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49" (1/1) ... [2023-04-01 05:54:49,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49" (1/1) ... [2023-04-01 05:54:49,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49" (1/1) ... [2023-04-01 05:54:49,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49" (1/1) ... [2023-04-01 05:54:49,434 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49" (1/1) ... [2023-04-01 05:54:49,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49" (1/1) ... [2023-04-01 05:54:49,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 05:54:49,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 05:54:49,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 05:54:49,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 05:54:49,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49" (1/1) ... [2023-04-01 05:54:49,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:54:49,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:54:49,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 05:54:49,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 05:54:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 05:54:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 05:54:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-01 05:54:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 05:54:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-01 05:54:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-01 05:54:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-01 05:54:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-01 05:54:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-01 05:54:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-01 05:54:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-01 05:54:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-01 05:54:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-01 05:54:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-01 05:54:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-01 05:54:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-01 05:54:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-01 05:54:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-01 05:54:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-01 05:54:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-01 05:54:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-01 05:54:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-01 05:54:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-04-01 05:54:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-01 05:54:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-01 05:54:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-01 05:54:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-01 05:54:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-01 05:54:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 05:54:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 05:54:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 05:54:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 05:54:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 05:54:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 05:54:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-01 05:54:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-01 05:54:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 05:54:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 05:54:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-01 05:54:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 05:54:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 05:54:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 05:54:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 05:54:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-01 05:54:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 05:54:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-01 05:54:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-01 05:54:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-01 05:54:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-01 05:54:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-01 05:54:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-01 05:54:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 05:54:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-01 05:54:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-01 05:54:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-01 05:54:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-01 05:54:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-01 05:54:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-01 05:54:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-01 05:54:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-01 05:54:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-01 05:54:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-04-01 05:54:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-01 05:54:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-01 05:54:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-01 05:54:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-01 05:54:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-01 05:54:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-01 05:54:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-01 05:54:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-01 05:54:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 05:54:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 05:54:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 05:54:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 05:54:49,812 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 05:54:49,823 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 05:54:50,562 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 05:54:50,702 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 05:54:50,703 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-01 05:54:50,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:54:50 BoogieIcfgContainer [2023-04-01 05:54:50,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 05:54:50,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 05:54:50,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 05:54:50,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 05:54:50,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 05:54:48" (1/3) ... [2023-04-01 05:54:50,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4105977b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:54:50, skipping insertion in model container [2023-04-01 05:54:50,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:54:49" (2/3) ... [2023-04-01 05:54:50,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4105977b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:54:50, skipping insertion in model container [2023-04-01 05:54:50,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:54:50" (3/3) ... [2023-04-01 05:54:50,713 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product28.cil.c [2023-04-01 05:54:50,726 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 05:54:50,726 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 05:54:50,771 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 05:54:50,777 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;@5a6c4a95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 05:54:50,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 05:54:50,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 64 states have (on average 1.28125) internal successors, (82), 78 states have internal predecessors, (82), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) [2023-04-01 05:54:50,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-01 05:54:50,799 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:54:50,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:54:50,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:54:50,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:54:50,803 INFO L85 PathProgramCache]: Analyzing trace with hash 304110235, now seen corresponding path program 1 times [2023-04-01 05:54:50,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:54:50,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362305493] [2023-04-01 05:54:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:54:50,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:54:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:54:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:54:51,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:54:51,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362305493] [2023-04-01 05:54:51,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362305493] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:54:51,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:54:51,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 05:54:51,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184774981] [2023-04-01 05:54:51,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:54:51,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 05:54:51,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:54:51,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 05:54:51,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:54:51,194 INFO L87 Difference]: Start difference. First operand has 140 states, 64 states have (on average 1.28125) internal successors, (82), 78 states have internal predecessors, (82), 44 states have call successors, (44), 27 states have call predecessors, (44), 27 states have return successors, (44), 41 states have call predecessors, (44), 44 states have call successors, (44) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:54:51,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:54:51,293 INFO L93 Difference]: Finished difference Result 195 states and 238 transitions. [2023-04-01 05:54:51,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 05:54:51,295 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 42 [2023-04-01 05:54:51,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:54:51,302 INFO L225 Difference]: With dead ends: 195 [2023-04-01 05:54:51,302 INFO L226 Difference]: Without dead ends: 98 [2023-04-01 05:54:51,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 05:54:51,323 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:54:51,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:54:51,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-04-01 05:54:51,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-04-01 05:54:51,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 50 states have (on average 1.24) internal successors, (62), 60 states have internal predecessors, (62), 28 states have call successors, (28), 24 states have call predecessors, (28), 19 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2023-04-01 05:54:51,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2023-04-01 05:54:51,381 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 42 [2023-04-01 05:54:51,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:54:51,381 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2023-04-01 05:54:51,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:54:51,382 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2023-04-01 05:54:51,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-01 05:54:51,383 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:54:51,383 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:54:51,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 05:54:51,384 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:54:51,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:54:51,384 INFO L85 PathProgramCache]: Analyzing trace with hash 514034720, now seen corresponding path program 1 times [2023-04-01 05:54:51,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:54:51,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001178748] [2023-04-01 05:54:51,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:54:51,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:54:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:54:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:54:51,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:54:51,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001178748] [2023-04-01 05:54:51,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001178748] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:54:51,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:54:51,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 05:54:51,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070535814] [2023-04-01 05:54:51,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:54:51,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 05:54:51,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:54:51,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 05:54:51,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:54:51,580 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:54:51,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:54:51,645 INFO L93 Difference]: Finished difference Result 143 states and 163 transitions. [2023-04-01 05:54:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 05:54:51,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 43 [2023-04-01 05:54:51,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:54:51,648 INFO L225 Difference]: With dead ends: 143 [2023-04-01 05:54:51,648 INFO L226 Difference]: Without dead ends: 90 [2023-04-01 05:54:51,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 05:54:51,649 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 11 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-01 05:54:51,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 161 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-01 05:54:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-04-01 05:54:51,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-04-01 05:54:51,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 55 states have internal predecessors, (56), 25 states have call successors, (25), 23 states have call predecessors, (25), 19 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2023-04-01 05:54:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 102 transitions. [2023-04-01 05:54:51,672 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 102 transitions. Word has length 43 [2023-04-01 05:54:51,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:54:51,672 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 102 transitions. [2023-04-01 05:54:51,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 05:54:51,672 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2023-04-01 05:54:51,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-01 05:54:51,673 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:54:51,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:54:51,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 05:54:51,687 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:54:51,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:54:51,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1153295119, now seen corresponding path program 1 times [2023-04-01 05:54:51,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:54:51,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883949521] [2023-04-01 05:54:51,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:54:51,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:54:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:54:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:54:51,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:54:51,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883949521] [2023-04-01 05:54:51,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883949521] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:54:51,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:54:51,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 05:54:51,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581657442] [2023-04-01 05:54:51,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:54:51,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 05:54:51,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:54:51,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 05:54:51,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-01 05:54:51,977 INFO L87 Difference]: Start difference. First operand 90 states and 102 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 05:54:52,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:54:52,251 INFO L93 Difference]: Finished difference Result 271 states and 322 transitions. [2023-04-01 05:54:52,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 05:54:52,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 47 [2023-04-01 05:54:52,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:54:52,253 INFO L225 Difference]: With dead ends: 271 [2023-04-01 05:54:52,253 INFO L226 Difference]: Without dead ends: 203 [2023-04-01 05:54:52,254 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 [2023-04-01 05:54:52,255 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 154 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 05:54:52,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 450 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 05:54:52,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-04-01 05:54:52,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 191. [2023-04-01 05:54:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 102 states have (on average 1.2843137254901962) internal successors, (131), 121 states have internal predecessors, (131), 49 states have call successors, (49), 45 states have call predecessors, (49), 39 states have return successors, (46), 37 states have call predecessors, (46), 45 states have call successors, (46) [2023-04-01 05:54:52,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 226 transitions. [2023-04-01 05:54:52,318 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 226 transitions. Word has length 47 [2023-04-01 05:54:52,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:54:52,318 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 226 transitions. [2023-04-01 05:54:52,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 4 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 05:54:52,319 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 226 transitions. [2023-04-01 05:54:52,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-01 05:54:52,328 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:54:52,328 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] [2023-04-01 05:54:52,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 05:54:52,331 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:54:52,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:54:52,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1145338745, now seen corresponding path program 1 times [2023-04-01 05:54:52,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:54:52,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430048142] [2023-04-01 05:54:52,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:54:52,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:54:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:54:52,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:54:52,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:54:52,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430048142] [2023-04-01 05:54:52,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430048142] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:54:52,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:54:52,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 05:54:52,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926528885] [2023-04-01 05:54:52,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:54:52,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 05:54:52,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:54:52,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 05:54:52,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 05:54:52,550 INFO L87 Difference]: Start difference. First operand 191 states and 226 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) [2023-04-01 05:54:52,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:54:52,725 INFO L93 Difference]: Finished difference Result 514 states and 627 transitions. [2023-04-01 05:54:52,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 05:54:52,725 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 [2023-04-01 05:54:52,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:54:52,731 INFO L225 Difference]: With dead ends: 514 [2023-04-01 05:54:52,732 INFO L226 Difference]: Without dead ends: 345 [2023-04-01 05:54:52,734 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 [2023-04-01 05:54:52,741 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 64 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:54:52,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 373 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:54:52,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2023-04-01 05:54:52,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 333. [2023-04-01 05:54:52,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 182 states have (on average 1.2857142857142858) internal successors, (234), 216 states have internal predecessors, (234), 83 states have call successors, (83), 75 states have call predecessors, (83), 67 states have return successors, (81), 63 states have call predecessors, (81), 79 states have call successors, (81) [2023-04-01 05:54:52,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 398 transitions. [2023-04-01 05:54:52,824 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 398 transitions. Word has length 51 [2023-04-01 05:54:52,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:54:52,825 INFO L495 AbstractCegarLoop]: Abstraction has 333 states and 398 transitions. [2023-04-01 05:54:52,825 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) [2023-04-01 05:54:52,825 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 398 transitions. [2023-04-01 05:54:52,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-01 05:54:52,827 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:54:52,828 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] [2023-04-01 05:54:52,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 05:54:52,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:54:52,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:54:52,828 INFO L85 PathProgramCache]: Analyzing trace with hash -368048554, now seen corresponding path program 1 times [2023-04-01 05:54:52,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:54:52,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112750129] [2023-04-01 05:54:52,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:54:52,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:54:52,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:54:53,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:54:53,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:54:53,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112750129] [2023-04-01 05:54:53,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112750129] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:54:53,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:54:53,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 05:54:53,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305122878] [2023-04-01 05:54:53,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:54:53,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 05:54:53,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:54:53,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 05:54:53,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 05:54:53,017 INFO L87 Difference]: Start difference. First operand 333 states and 398 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) [2023-04-01 05:54:53,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:54:53,191 INFO L93 Difference]: Finished difference Result 567 states and 704 transitions. [2023-04-01 05:54:53,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 05:54:53,192 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 [2023-04-01 05:54:53,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:54:53,193 INFO L225 Difference]: With dead ends: 567 [2023-04-01 05:54:53,193 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 05:54:53,194 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 [2023-04-01 05:54:53,197 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 67 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:54:53,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 133 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:54:53,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 05:54:53,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 05:54:53,198 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) [2023-04-01 05:54:53,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 05:54:53,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2023-04-01 05:54:53,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:54:53,199 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 05:54:53,199 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) [2023-04-01 05:54:53,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 05:54:53,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 05:54:53,201 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 05:54:53,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 05:54:53,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point L158(lines 135 159) no Hoare annotation was computed. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 146) no Hoare annotation was computed. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 111 166) no Hoare annotation was computed. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_freeEXIT(lines 111 166) no Hoare annotation was computed. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point L136-2(lines 136 157) no Hoare annotation was computed. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point L193-2(lines 193 218) no Hoare annotation was computed. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point L219(lines 192 220) no Hoare annotation was computed. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetFINAL(lines 167 226) no Hoare annotation was computed. [2023-04-01 05:54:53,864 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2023-04-01 05:54:53,865 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2023-04-01 05:54:53,865 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_resetEXIT(lines 167 226) no Hoare annotation was computed. [2023-04-01 05:54:53,865 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 167 226) no Hoare annotation was computed. [2023-04-01 05:54:53,865 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 203) no Hoare annotation was computed. [2023-04-01 05:54:53,865 INFO L899 garLoopResultBuilder]: For program point valid_productEXIT(lines 846 854) no Hoare annotation was computed. [2023-04-01 05:54:53,865 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 846 854) the Hoare annotation is: true [2023-04-01 05:54:53,865 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 928 950) no Hoare annotation was computed. [2023-04-01 05:54:53,865 INFO L895 garLoopResultBuilder]: At program point L940(line 940) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= main_~tmp~8 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:54:53,865 INFO L895 garLoopResultBuilder]: At program point L940-1(line 940) the Hoare annotation is: (or (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= main_~tmp~8 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:54:53,865 INFO L899 garLoopResultBuilder]: For program point L938(lines 938 945) no Hoare annotation was computed. [2023-04-01 05:54:53,866 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 928 950) 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))) [2023-04-01 05:54:53,866 INFO L899 garLoopResultBuilder]: For program point L938-1(lines 938 945) no Hoare annotation was computed. [2023-04-01 05:54:53,866 INFO L899 garLoopResultBuilder]: For program point L936(line 936) no Hoare annotation was computed. [2023-04-01 05:54:53,866 INFO L895 garLoopResultBuilder]: At program point L935(line 935) 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))) [2023-04-01 05:54:53,866 INFO L895 garLoopResultBuilder]: At program point L934(line 934) 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))) [2023-04-01 05:54:53,866 INFO L895 garLoopResultBuilder]: At program point L934-1(line 934) 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))) [2023-04-01 05:54:53,866 INFO L899 garLoopResultBuilder]: For program point L897(line 897) no Hoare annotation was computed. [2023-04-01 05:54:53,866 INFO L899 garLoopResultBuilder]: For program point L896(line 896) no Hoare annotation was computed. [2023-04-01 05:54:53,866 INFO L899 garLoopResultBuilder]: For program point Specification2EXIT(lines 887 910) no Hoare annotation was computed. [2023-04-01 05:54:53,866 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2023-04-01 05:54:53,866 INFO L899 garLoopResultBuilder]: For program point L894(line 894) no Hoare annotation was computed. [2023-04-01 05:54:53,866 INFO L899 garLoopResultBuilder]: For program point L893(line 893) no Hoare annotation was computed. [2023-04-01 05:54:53,866 INFO L899 garLoopResultBuilder]: For program point L892(line 892) no Hoare annotation was computed. [2023-04-01 05:54:53,866 INFO L899 garLoopResultBuilder]: For program point Specification2FINAL(lines 887 910) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 887 910) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point L905(line 905) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point L904(line 904) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point L903(line 903) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point L902(line 902) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point L901(line 901) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point L900(line 900) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point L899(line 899) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point L898(line 898) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point stopSystemEXIT(lines 768 782) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 768 782) 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)))) [2023-04-01 05:54:53,867 INFO L895 garLoopResultBuilder]: At program point L774(line 774) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point L772(lines 772 778) no Hoare annotation was computed. [2023-04-01 05:54:53,867 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 749 767) the Hoare annotation is: true [2023-04-01 05:54:53,867 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevelEXIT(lines 749 767) no Hoare annotation was computed. [2023-04-01 05:54:53,868 INFO L902 garLoopResultBuilder]: At program point L756(line 756) the Hoare annotation is: true [2023-04-01 05:54:53,868 INFO L899 garLoopResultBuilder]: For program point L756-1(line 756) no Hoare annotation was computed. [2023-04-01 05:54:53,868 INFO L899 garLoopResultBuilder]: For program point select_featuresEXIT(lines 832 838) no Hoare annotation was computed. [2023-04-01 05:54:53,868 INFO L902 garLoopResultBuilder]: At program point select_featuresFINAL(lines 832 838) the Hoare annotation is: true [2023-04-01 05:54:53,868 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 378 423) no Hoare annotation was computed. [2023-04-01 05:54:53,868 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argtypeEXIT(lines 378 423) no Hoare annotation was computed. [2023-04-01 05:54:53,868 INFO L895 garLoopResultBuilder]: At program point L640(line 640) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-01 05:54:53,868 INFO L899 garLoopResultBuilder]: For program point L640-1(line 640) no Hoare annotation was computed. [2023-04-01 05:54:53,868 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 655) no Hoare annotation was computed. [2023-04-01 05:54:53,868 INFO L899 garLoopResultBuilder]: For program point processEnvironmentEXIT(lines 634 658) no Hoare annotation was computed. [2023-04-01 05:54:53,868 INFO L895 garLoopResultBuilder]: At program point L653(line 653) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-04-01 05:54:53,868 INFO L899 garLoopResultBuilder]: For program point L653-1(lines 634 658) no Hoare annotation was computed. [2023-04-01 05:54:53,868 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 634 658) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2023-04-01 05:54:53,868 INFO L895 garLoopResultBuilder]: At program point L648(line 648) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-01 05:54:53,868 INFO L895 garLoopResultBuilder]: At program point L644(line 644) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2023-04-01 05:54:53,868 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 650) no Hoare annotation was computed. [2023-04-01 05:54:53,868 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 626 632) no Hoare annotation was computed. [2023-04-01 05:54:53,869 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 626 632) the Hoare annotation is: true [2023-04-01 05:54:53,869 INFO L899 garLoopResultBuilder]: For program point L545(lines 545 551) no Hoare annotation was computed. [2023-04-01 05:54:53,869 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 545 551) no Hoare annotation was computed. [2023-04-01 05:54:53,869 INFO L899 garLoopResultBuilder]: For program point testFINAL(lines 525 592) no Hoare annotation was computed. [2023-04-01 05:54:53,869 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 525 592) 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))) [2023-04-01 05:54:53,869 INFO L895 garLoopResultBuilder]: At program point L585(lines 534 586) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (= |old(~systemActive~0)| 1))) [2023-04-01 05:54:53,869 INFO L895 garLoopResultBuilder]: At program point L575(line 575) 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))) [2023-04-01 05:54:53,869 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 579) no Hoare annotation was computed. [2023-04-01 05:54:53,869 INFO L895 garLoopResultBuilder]: At program point L573-1(lines 565 580) 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))) [2023-04-01 05:54:53,869 INFO L899 garLoopResultBuilder]: For program point L536(lines 535 584) no Hoare annotation was computed. [2023-04-01 05:54:53,869 INFO L895 garLoopResultBuilder]: At program point L567(line 567) 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))) [2023-04-01 05:54:53,869 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 580) no Hoare annotation was computed. [2023-04-01 05:54:53,869 INFO L895 garLoopResultBuilder]: At program point L557(line 557) 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))) [2023-04-01 05:54:53,869 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 561) no Hoare annotation was computed. [2023-04-01 05:54:53,869 INFO L899 garLoopResultBuilder]: For program point L555-1(lines 555 561) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L895 garLoopResultBuilder]: At program point L582(lines 535 584) 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))) [2023-04-01 05:54:53,870 INFO L895 garLoopResultBuilder]: At program point L547(line 547) 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))) [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point testEXIT(lines 525 592) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 659 666) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 659 666) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 511 519) the Hoare annotation is: true [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDryEXIT(lines 511 519) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 479 501) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point printEnvironmentEXIT(lines 479 501) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point L673(line 673) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point L673-1(line 673) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point activatePumpEXIT(lines 668 684) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 668 684) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point L679(line 679) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point L679-1(lines 668 684) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point L675(lines 675 681) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 502 510) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point getWaterLevelEXIT(lines 502 510) no Hoare annotation was computed. [2023-04-01 05:54:53,870 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 470 478) the Hoare annotation is: true [2023-04-01 05:54:53,870 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 470 478) no Hoare annotation was computed. [2023-04-01 05:54:53,871 INFO L895 garLoopResultBuilder]: At program point L608(line 608) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2023-04-01 05:54:53,871 INFO L899 garLoopResultBuilder]: For program point L606(lines 605 624) no Hoare annotation was computed. [2023-04-01 05:54:53,871 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 602 625) no Hoare annotation was computed. [2023-04-01 05:54:53,871 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 602 625) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-04-01 05:54:53,871 INFO L895 garLoopResultBuilder]: At program point L615(line 615) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2023-04-01 05:54:53,871 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 602 625) no Hoare annotation was computed. [2023-04-01 05:54:53,871 INFO L895 garLoopResultBuilder]: At program point L613(lines 613 619) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2023-04-01 05:54:53,871 INFO L902 garLoopResultBuilder]: At program point L867-2(lines 867 881) the Hoare annotation is: true [2023-04-01 05:54:53,871 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 857 886) no Hoare annotation was computed. [2023-04-01 05:54:53,871 INFO L902 garLoopResultBuilder]: At program point L863(line 863) the Hoare annotation is: true [2023-04-01 05:54:53,871 INFO L899 garLoopResultBuilder]: For program point L863-1(line 863) no Hoare annotation was computed. [2023-04-01 05:54:53,871 INFO L902 garLoopResultBuilder]: At program point L882(lines 857 886) the Hoare annotation is: true [2023-04-01 05:54:53,871 INFO L899 garLoopResultBuilder]: For program point L878(line 878) no Hoare annotation was computed. [2023-04-01 05:54:53,871 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 857 886) the Hoare annotation is: true [2023-04-01 05:54:53,871 INFO L899 garLoopResultBuilder]: For program point L871(lines 871 875) no Hoare annotation was computed. [2023-04-01 05:54:53,871 INFO L902 garLoopResultBuilder]: At program point L871-1(lines 871 875) the Hoare annotation is: true [2023-04-01 05:54:53,871 INFO L899 garLoopResultBuilder]: For program point lowerWaterLevelEXIT(lines 434 445) no Hoare annotation was computed. [2023-04-01 05:54:53,871 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 434 445) the Hoare annotation is: true [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point startSystemEXIT(lines 783 790) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 783 790) the Hoare annotation is: true [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 446 457) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 446 457) the Hoare annotation is: true [2023-04-01 05:54:53,872 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 50 57) the Hoare annotation is: true [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point __automaton_failEXIT(lines 50 57) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L902 garLoopResultBuilder]: At program point select_helpersFINAL(lines 839 845) the Hoare annotation is: true [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point select_helpersEXIT(lines 839 845) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 704 712) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 704 712) the Hoare annotation is: true [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 713 748) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point L743(line 743) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point L743-1(line 743) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point printPumpEXIT(lines 713 748) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point __utac__exception__cf_handler_setEXIT(lines 65 110) no Hoare annotation was computed. [2023-04-01 05:54:53,872 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 65 110) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point runTestEXIT(lines 918 927) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 918 927) 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))) [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point runTestFINAL(lines 918 927) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 693 703) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point L698(line 698) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 693 703) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point L698-1(line 698) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 685 692) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 685 692) the Hoare annotation is: true [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point __utac__get_this_argEXIT(lines 332 377) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 332 377) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point L279(lines 278 298) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point L310(line 310) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point L310-1(line 310) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 316) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 229 331) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point L294(line 294) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtFINAL(lines 229 331) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point L294-1(line 294) no Hoare annotation was computed. [2023-04-01 05:54:53,873 INFO L899 garLoopResultBuilder]: For program point L253(lines 253 257) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point L278-2(lines 278 298) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point __utac__error_stack_mgtEXIT(lines 229 331) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point L299(lines 277 300) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 274) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 822 831) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point select_oneEXIT(lines 822 831) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 458 469) the Hoare annotation is: true [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 458 469) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point setupEXIT(lines 911 917) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L902 garLoopResultBuilder]: At program point setupFINAL(lines 911 917) the Hoare annotation is: true [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 05:54:53,874 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 05:54:53,874 INFO L899 garLoopResultBuilder]: For program point L802-1(line 802) no Hoare annotation was computed. [2023-04-01 05:54:53,875 INFO L899 garLoopResultBuilder]: For program point L800(lines 800 813) no Hoare annotation was computed. [2023-04-01 05:54:53,875 INFO L899 garLoopResultBuilder]: For program point L800-1(lines 792 816) no Hoare annotation was computed. [2023-04-01 05:54:53,875 INFO L902 garLoopResultBuilder]: At program point L798(line 798) the Hoare annotation is: true [2023-04-01 05:54:53,875 INFO L899 garLoopResultBuilder]: For program point L798-1(line 798) no Hoare annotation was computed. [2023-04-01 05:54:53,875 INFO L899 garLoopResultBuilder]: For program point __utac_acc__Specification1_spec__1EXIT(lines 792 816) no Hoare annotation was computed. [2023-04-01 05:54:53,875 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 792 816) the Hoare annotation is: true [2023-04-01 05:54:53,875 INFO L895 garLoopResultBuilder]: At program point L806(line 806) the Hoare annotation is: (not (= ~pumpRunning~0 0)) [2023-04-01 05:54:53,875 INFO L899 garLoopResultBuilder]: For program point L804(lines 804 810) no Hoare annotation was computed. [2023-04-01 05:54:53,875 INFO L895 garLoopResultBuilder]: At program point L802(line 802) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= ~methaneLevelCritical~0 0))) [2023-04-01 05:54:53,877 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-04-01 05:54:53,879 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 05:54:53,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 05:54:53 BoogieIcfgContainer [2023-04-01 05:54:53,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 05:54:53,888 INFO L158 Benchmark]: Toolchain (without parser) took 5106.50ms. Allocated memory is still 255.9MB. Free memory was 213.7MB in the beginning and 149.8MB in the end (delta: 63.9MB). Peak memory consumption was 121.0MB. Max. memory is 8.0GB. [2023-04-01 05:54:53,888 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 154.1MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 05:54:53,888 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.66ms. Allocated memory is still 255.9MB. Free memory was 213.7MB in the beginning and 194.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-04-01 05:54:53,888 INFO L158 Benchmark]: Boogie Preprocessor took 108.45ms. Allocated memory is still 255.9MB. Free memory was 194.8MB in the beginning and 191.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-04-01 05:54:53,888 INFO L158 Benchmark]: RCFGBuilder took 1266.10ms. Allocated memory is still 255.9MB. Free memory was 191.7MB in the beginning and 215.7MB in the end (delta: -24.0MB). Peak memory consumption was 62.5MB. Max. memory is 8.0GB. [2023-04-01 05:54:53,888 INFO L158 Benchmark]: TraceAbstraction took 3179.88ms. Allocated memory is still 255.9MB. Free memory was 215.0MB in the beginning and 149.8MB in the end (delta: 65.2MB). Peak memory consumption was 121.4MB. Max. memory is 8.0GB. [2023-04-01 05:54:53,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 154.1MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 533.66ms. Allocated memory is still 255.9MB. Free memory was 213.7MB in the beginning and 194.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 108.45ms. Allocated memory is still 255.9MB. Free memory was 194.8MB in the beginning and 191.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1266.10ms. Allocated memory is still 255.9MB. Free memory was 191.7MB in the beginning and 215.7MB in the end (delta: -24.0MB). Peak memory consumption was 62.5MB. Max. memory is 8.0GB. * TraceAbstraction took 3179.88ms. Allocated memory is still 255.9MB. Free memory was 215.0MB in the beginning and 149.8MB in the end (delta: 65.2MB). Peak memory consumption was 121.4MB. 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: 54]: 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 41 procedures, 185 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 304 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 296 mSDsluCounter, 1226 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 800 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 554 IncrementalHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 426 mSDtfsCounter, 554 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=333occurred 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: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 54 LocationsWithAnnotation, 438 PreInvPairs, 482 NumberOfFragments, 489 HoareAnnotationTreeSize, 438 FomulaSimplifications, 57 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 54 FomulaSimplificationsInter, 1977 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 433 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: 534]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) - InvariantResult [Line: 867]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 857]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && splverifierCounter == 0) || !(\old(pumpRunning) == 0)) || !(\old(methaneLevelCritical) == 0)) || !(\old(systemActive) == 1) RESULT: Ultimate proved your program to be correct! [2023-04-01 05:54:53,917 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...